ELEKTROBUDOWA SA
10/K/2009/EN
Low-Voltage Switchgear and Controlgear
type NGW R
CATALOGUE
ELEKTROBUDOWA SA
INTRODUCTION
1. GENERAL CHARACTERISTICS
1.1. APPLICATION
1.2. FEATURES
1.3. OPERATION CONDITIONS
1.4. CONFORMITY TO STANDARDS
2. TECHNICAL DATA
3. SWITCHGEAR DESIGN
Functional units compartment
The busbars compartment
The distribution busbars compartment
The auxiliary/common circuits compartment
The connections compartment
3.1. Sections with an air circuit breaker
3.2. Sections with withdrawable and remowable part
3.3. Sections with a digital control and supervision system
3.4. Reactive power compensation sections
3.5. Lighting switchgears
3.6. Sections with blocks of disconnecting switches
4. MAIN CIRCUITS
5. OPERATION CHARACTERISTIC
5.1. Degree of protection
5.2. Interlocks
5.3. Protection against electic shock
5.4. Equipment supplied together with the switchgear
5.5. Operation equipment
5.6. Nameplates and labels
6. MOUNTING
7. TRANSFORMER CHAMBER
8. BUSDUCT
9. DESIGNING
9.1. Contents of the engineering design
9.2. Hints for designing
10. TRANSPORT
11. ORDERING
1
1
1
1
1
2
2
4
6
6
7
7
8
9
10
10
11
11
12
15
15
15
15
15
15
16
16
17
18
20
20
20
21
21
Switchgear 0,4kV in Rafinery ORLEN
P³ock Poland
Efficient, safe, economical, beneficial - such is the low voltage NGW distribution system offered by
ELEKTROBUDOWA SA. Versatile possibilities of application in low voltage electric network, universal permanent,
plug-in and withdrawable units in one section, safe supply by encapsulated busbar trunking system and variety of
cable, wire and busbar connections - distinguish our product in the international market. A lot of possibilities to choose
from mass-produced modules determinate the high quality of product.
¢
¢
¢
¢
¢
Mentioned below products are parts of the system NGW:
switchgears NGW R-1 up to 7500A; up to IP42,
control assemblies NGW R-18 up to 630A; up to IP42,
switchgears NGW R-2 up to 2500A; IP55,
busbar trunking systems NGW M-1,
transformer chambers NGW K.
The catalogue presents the switchgears in detail. General information about busbar trunking systems and
transformer chambers is included.
1. GENERAL CHARACTERISTICS
Indoor switchgears and controlgear systems NGW R are
assembled from elements manufactured serially in the
numerically controlled machining centres. Parts of the
construction are made from high quality material protected
with anticorrosive electrolytic or powder paint coats.
1.1. APPLICATION
Indoor low voltage switchgears NGW R are designed for
low voltage AC or DC electric energy distribution, and for the
control and protection of electric equipment against short
circuit and overload consequences. They can be used as main
switchgears, motor control centre and subdistribution boards.
They can work with busbar trunking system in TNC or TN-S
alternating current networks and in direct current networks.
The NGW assemblies meet the needs of numerous clients
in industrial plants, power industry, transportcommercial and
public buildings and environmental protection plants.
1.2. FEATURES
The most distinguishing features of the type NGW R
systems are:
Polish product conforming to international standards
in quality,
one manufacturer fulfils all energy distribution
requirements,
configuration of switchgear, busduct and transformer
chamber according to the needs,
convenient access to apparatus and comfortable
operation,
separation of compartments in any agreed form, from
1 to 4 according to PN-EN 60 439-1:2003/A1:2006,
adaptation for cooperation with digital equipment for
monitoring and control,
easy replacement of functional units or adding new
ones,
each assembly type tested (TTA),
safety for personnel and protection of equipment,
reliability and long life,
minimum maintenance and inspection requirements,
manufacturer's professional service,
quick assembly,
short response times for delivery.
1.3.
OPERATION CONDITIONS
NGW R-1, 2 switchgears and other elements of
NGW system are designed to operate in rooms
ensuring normal environment condition according to
standard PN-EN 60439-1:2003/A1:2006. Special
environment conditions must be agreed between
manufacturer and user.
NGW R-2, IP55 Assembly
1.3.
CONFORMITY TO STANDARDS
Elements of NGW system meet the requirements of
standards:
PN-EN 60439-1:2003/A1:2006 Low voltage switchgear
and controlgear assemblies. Requirements for typetested and partially type tested assemblies.
PN-EN 60439-2:2004/A1:2007 Low voltage switchgear
and controlgear. Requirements for busbar trunking
sytem.
PN-EN 60439-3:2004 Low voltage switchgear and
controlgear. Requirements for low voltage switchgear
and controlgear designed for installation in places
accessible for the unqualified personnel. switchboards.
PN-EN 60439-4:2008 Low voltage switchgear and
controlgear. Requirements for assemblies to
be
installed on site.
PN-E 05163:2002 Enclosed low-voltage switchgears
and controlgears. Arc-resistance commissioning and
testing.
PN-EN 60529: 2003 Degrees of protection provided by
enclosures (IP Code).
ELEKTROBUDOWA SA applies the management system
according to ISO 9001; ISO 1401 and AQAP-2110.
1
ELEKTROBUDOWA SA
2. TECHNICAL DATA
NGW R-1
Rated values
insulation Ui
Rated voltage
Rated current In
V
V AC
V DC
operation ue
continuous of horizontal busbars
continuous of supply cubicles
continuous of cubicle vertical buses
Short-circuit currents Icw, Ipk, fault duration time tcw
A
A
A
A
Hz
Rated frequency fr
NGW R-2
do 1000
500
up to 1000
250
up to 660
up to 630
up to 7500
125, 250
up to 6300
up to 1600
up to 231 according to table
-
up to 1000
up to 660
up to 2500
up to 2500
1600
page 6
50 ÷ 60
up to IP42
Protection degree of enclosures according to IEC 529
kg
Average mass of a section
NGW R-18
120
250
Resistance to consequences of internal arc
according to category B1*
IP55
230
65 kA during 0,1s
3. SWITCHGEAR DESIGN
Construction parts of a section
Mounting frame
Construction framework
Partitions between sections,
mounting plates, connection elements
External enclosures
Corrosion-proof coating
epoxy powder paint
protective coat Al-Zn
protective coat Al-Zn
epoxy powder paint
Switchgear's construction allows for the installation of 3- or 4- pole
apparatus. In segments there are separated compartments. The
compartmented design provides the protection against contact with
live parts belonging to the adjacent functional unit and the reduction
of spreading arc fault consequences outside the place it is initiated,
and thus considerably increase the degree of safety.
The basic module
is a cuboid
125x50x50 mm
Construction parts of a switchgear section
Dimensions of a section are a multiple of a 125x50x50 mm cuboid.
Preferred dimensions of sections
width w
height h
depth d
Type of a section
mm
mm
with withdrawable/removable parts up to IP42
with a side connections compartment
850, 1000
2150
with a rear connections compartment
700
with withdrawable/removable parts IP55
with a side connections compartment
950, 1100
2150
with a rear connections compartment
800
with a side connections compartment
with a rear connections compartment
with fixed parts up to IP42 or IP55
650, 850, 1000
2150
400, 600, 750, 1000
version with an additional door
preferred sections up to IP42
Other dimensions subject to agreement
2
400, 600, 750, 850, 1000
2150
mm
550, 750, 1000
750, 900, 1000
700, 900, 1150
900, 1050, 1150
250, 400, 450, 550
600, 650, 750
550, 700, 750,
900, 1000, 1150
2000 = 16 x M
h = 2150
50
Wall-mounted – access from the front
A
A
A
foundation frame
A
A
50
V
d
w
Double incoming feeder
rear connections compartment
Free-standing – access from the front and back
Functional compartments:
- functional units
- main busbars
- distribution busbars of the segment
- auxiliary/common circuits
A
A
A
A
V
A
- connections
Options: from the bottom, from the left side, from the right side or from the back
Optional configuration of sections
In the NGW R switchgear design enables all methods
of internal division of a section by means of partitions or
barriers are possible. According to PN-EN 604391:2003/A1:2006 the inside of a section can be divided in
one of the following ways:
Form 1
Form 3a
Form 3b
Form 2a
Form 2b
Form 4a
Form 4b
Different forms of compartments separation according to PN-EN 60439-1:2003/A1:2006
3
ELEKTROBUDOWA SA
FUNCTIONAL UNITS COMPARTMENT
2M
In the standard section 2150 mm high,
the height of a functional unit compartment
is conventionally divided into 14 or 16
modules M = 125 mm. In this compartment
units with withdrawable, removable or
fixed parts can be situated.
A
A
A
A
A
V
16M
h = 2150
14M
A
A
600
w
w
- with a busbar compartment
- without a busbar compartment
Typical sections - examples
Withdrawable units
Apparatus of main and auxiliary circuits are mounted on
a common base which can be completely removed from the
section even if the circuit to which it is connected is under
voltage. The withdrawable part can take one of the four basic
positions:
a connected position the part is fully connected for its
normally intended function,
a test position the switch in the main circuit is open, the
safe isolating distance in main circuits is provided, auxiliary
circuits are connected, the part remains mechanically
attached to the assembly,
a disconnected position
an isolating distance is
established in main and auxiliary circuits, the withdrawable
part is mechanically attached to the segment,
a removed position
the part is mechanically and
electrically separated from the section (outside the
switchgear).
In the connected position the withdrawable part is
mechanically interlocked and can be additionally blocked (item
5.2). For inspection or repair time the withdrawable part can be
replaced with an earthing part in order to earth the outgoing
cable (item 5.5).
There are seven sizes of withdrawable parts: W04, W02,
W1, W1,5, W2, W3 i W4.The size of a withdrawable part
depends on:
the rated continuous current and number of main busbars
The size of a withdrawable part
Rated current In
Number of main busbars
W04
32A
W02
63A
2; 3; 3 + N
Withdrawable unit 550mm wide
Withdrawable unit W02 and W04
The minimal size of a withdrawable part 550 mm wide
Number of main busbars
Rated current In
160A
250A
400A
630A
3
3+N
1,5M
2M
2M
4M
1,5M
3M
3M
4M
2
1,5M
2M
2M
3M
2M
4M
4M
—
¢ the type and quantity of mounted apparatus
Size of a
withdrawable
part
W04
W02
W1
W1,5
W2
W3
W4
4
Mounting space on a withdrawable part
Height of a
withdrawable part height h
depth d
width w
mm
187,5
187,5
125
187,5
250
375
500
145
145
54
117
180
306
432
110
220
330
529
400
h
d=
400
w=
The withdrawable part W1 ÷ W4
529
The main moving contact of the main circuits is
located in an insulating beam of the withdrawable part.
Its shape ensures the efficient decomposition of electrodynamic forces. Contacts can be joined in parallel.
The main moving contact of the auxiliary circuits is
located under the base. It is used as:
external connections block,
interconnections block,
limit switch.
Withdrawable
part
The main moving contact of the auxiliary circuits greatest amount of contacts
W04
W02
W1÷W4
36
36
45
The main contacts of the
withdrawable part W04 or W02
The main contact of the
withdrawable unit W1 ÷ W4
in the connected position
Removable (plug-in) parts
or
The removable (plug-in) part can be removed from
the switchgear even when the circuit to which it is
connected is live. It can take up following position:
the connected position,
the removed position.
The removable (plug-in) part includes main and
auxiliary circuits' apparatus on a three-dimensional
cassette or on a common mounting plate, such as:
typical or customized functional unit of apparatus, a
plug-in circuit breaker and a plug-in fuse-switch. The
main moving contact of the removable (plug-in) part
main circuits connects it with distribution busbars.
There are types:
P04, P02, P1, P1,5, P2, P3, P4 mounted on a threedimensional cassette,
R1, R1,5, R2, R3, R4 mounted on a plate,
disconnecting switch blocks.
Removable parts P04 i P02
Removable parts R1,5
The main contact of the removable part of circuit:
Removable part
CASSETTE
P04
P02
P1÷P4
main
auxiliary
Notice
36
The other
configuration
output/input
is also
available
PLATE
–
–
R1÷R4
2, 3, 3 + N
Disconnecting switches
arranged vertically
Disconnecting switches
arranged horizontally
Fixed parts
Fixed parts include apparatus
permanently mounted on
crossbeams or mounting plates
and connected to the main
circuits. The size of the part is a
multiple of a basic module:
125x50x50 mm.
Sections with fixed parts are
used as switchgear, controlgear
and sets for reactive power
compensation, usually
individually design.
A section without division into compartments
An assembly with meters
Separated functional areas
5
ELEKTROBUDOWA SA
Rated currents of busbars
The busbars compartment
In
The main busbars run along the whole length of the
switchgear in the upper part of its sections. The arrangement and
size of copper conductors depend on technical parameters.
Busbars can be divided into sections to facilitate assembly or
transport. Sections of busbars are joined by special connectors
without the need to make holes.
Ipk
Icw
Size of a copper
conductor
Diagram
tcw
s
A
kA
kA
400
750
1250
1600
2000
80
80
100
100
150
40
31,5
40
40
60
0,1
0,5
0,5
1,0
1,0
2500
176
80
1,0
3200
4000
5000
6300
7500
176
176
231
231
231
80
80
105
105
105
1,0
1,0
1,0
1,0
1,0
mmxmm
3
30x5
3 (5)
30x10
2x(30x10)
1 (6)
1
2x(40x10)
1
2x(50x10)
2x(80x10)
1
2x[2x(50x10)] *
4*
2x(100x10)
2x[2x(80x10)]
2x[2x(100x10)]
3x[2x(80x10)]
3x[2x(100x10)]
1
2
2
7
7
applied at the reduction of the system, load symmetrically top-bottom
Neutral bus N is half a phase bus size unless different
construction and design assumptions.
Inside the busbars compartment
L1
L2
L3
L1 L2 L3 N
N
7
L1
L2
L3
N
L1
L2
L1
L3
L2
L3
N
L1
L2
L3
N
L1
L2
L3
N
L1
L2
L3
Arrangement of busbars – diagrams 1-7
The distribution busbars compartment
Vertical busbars are run in the rear of the section. Busbars
can have 2-, 3- or 4-pole arrangement, as:
Holeless busbar joint
flat copper conductors consisting of one, two or three strips to
connect mechanically operated switches with busducts; flat
bars from P30x10 to P100x10 are used,
channel bar conductors in isolating elements to connect
withdrawable and removable parts.
For optimal arrangement of distribution busbars it is
recommended to group the withdrawable, removable and fixed
parts.
Rated current
Size of channel
shaped busbars
C400
C630
C1000
C1600
6
Fault duration time
In
Ipk
Icw
tcw
A
kA
kA
s
400
630
1000
1600
80
100
150
150
31,5
40
60
60
0,5
0,5
0,5
1,0
Flat conductors
Channel shaped distribution busbars
The auxiliry/common circuits compartment
In the auxiliry circuits compartment there are apparatus of control
circuits, signalling, measurement, data processig, etc. circuit breakers and
some functional unit for which that circuits don't have enough place in
withdrawable units.
Common circuits (circuitous) there are placed in separate compartment
of circuitous circuits. If there are not any circuitous circuits it is possible
installing in that compartment some auxiliry circuits. In particular cases in
circuitous circuits compartment can be take out terminals for installing
earthing units.
Section
The common/auxiliary circuits compartment
height
depth
width
The compartmemt
for circuits:
With a circuit breaker
auxiliary
common
with
busbars
with fixed parts
witch a withdrawable/
/removable parts
With the external
compartment from the side
Without the external
compartment from the side
without busbars
auxiliary
common
auxiliary
common
auxiliary
common
auxiliary
common
400, 600,
750, 1000
600
mm
2M ÷ 9M
prefered 5M
2M
350
any to 14M
350
700, 850, 1000
2M
usually doesn't exist
2M
as for the section
Usually
usually doesn't exist
2M
as for the section
The compartment of
circuitous circuits
100
100
100
100
usually doesn't exist
The circuitous circiuts of switchgear
and auxiliary circuit of circuit
breaker compartment
The external connections compartment
The external connections compartment there is in every
segment equipped with withdrawable and plug-in functional units
and sometimes there is in segments with fixed units. In segment
can be located:
on the right side,
on the left side only segments with fixed units,
on the beck side the free-standing switchgear,
at the bottom,
at the upper.
The side compartment with width 250 mm can be used when
number and sections of outgoing cables are not big. With
exploitation reasons prefered is compartment with width 400 mm.
The compartment under the circuit breaker is designed for cable
or rails connections and for terminals for installing earthing units.
In standard version the bottom of the compartment isn't
covered. On special request in version with IP55 the bottom of
compartment is covered by metal plate with glands.
Insertion cebles from uper side is possible by glands or hole in
top cover. For segments with rails only after agreement.
Connections with busbar
bridge from the top
Connections compartment
from the right side
Connections compartment Connections with
cables from the top
from the bottom
Connections compartment
from the beck
Connections compartment
from the left side
7
ELEKTROBUDOWA SA
Enclosures
Total dimensions of the assembly depend on dimensions of its sections
and external enclosures.
enclosure thickness
remarks
mm
20
end section
side enclosure
17
rear enclosure
17
front door
free-standing section
17
rear door
1,0
A partition between sections
A standard door
opens right. The
maximum size of a glass
panel is 200 mm smaller
than the door size.
Optionally, a section
can have an extra door,
which covers the handles
of the operating
mechanism. Then the
section's depth is 150 mm
greater.
Type of enclosure
min. 100
min. 100
A single section has two side enclosures.
2M
5M
2M
d
d
d
w
Connections from the bottom
d
w1
w
500*
1M
2x50
4M
5M
3M
14M
5M
2150
5M
2M
50
3.1. SECTIONS WITH AN AIR CIRCUIT BREAKER
w
400
Connections from the right side
Connections from the top
w1 = 250mm dla In ≤ 2500A
w1 = 400mm dla In > 2500A
In
of the circuit
breaker
A
1600
2000
2500
3200
4000
5000
6300
7500
width w
Minimal size of a section with a circuit breaker
number of main busbars
3
4
depth d
depth d
width w a bottom cable
a top
a top
a bottom cable
connection
connection
connection
connection
500*
600
550
550
600
600(750)
750(1000)
750(1000)
1200
1200
550(750)
550(750)
750(1000)
750(1000)
1200
1200
750
750
750
750
1000
1000
1400
1400
mm
600
750
550
550
750
750
750
750
1000
1000
1400
1400
550(750)
550(750)
750(1000)
750(1000)
1200
1200
750
750
1000
1000
1400
1400
500* - for ACB with reduced dimension, type (ABB), NT06÷NT1,6 (Schneider), IZMX16 (MOELLER).
Dimensions in brackets to be applied for coupling panels and whereas busbar trunking system
(busduct) is connected to a section.
8
Sections with air mechanical circuit breakers perform the function of supply feeders, outgoing
feeders or coupling cubicles. Two circuit breakers with rated current up to 1600A can be installed in
one section. The preferred circuit breakers and standard schematic diagrams are specified in item 4.
Circuit breakers can be installed as fixed or withdrawable. Auxiliary and common circuits should
be located in the auxiliary circuits compartment. A standard height of such compartment is 5M.
A special truck (item 5.5) produced by ELEKTROBUDOWA SA is offered to facilitate operation of
the circuit breaker.
2M
3.2. SECTIONS WITH WITHDRAWABLE AND REMOVABLE PARTS
Units with withdrawable and removable parts can perform the
function of supply or outgoing feeders or for reactive power
compensation. Standard schematic diagrams and preferred
apparatus are specified in item 4.
The remaining space in the functional units compartment can
be:
filled with a dummy ,
used for stand-by withdrawable parts,
used as a compartment for further extension of the switchgear
(additional door),
used as an auxiliary circuits compartment.
Additional equipment for operation of the withdrawable and
removable part is specified in item 5.5.
1,5M 1,5M ³¹cznie 3,5M
2M
Units with a disconnecting switch
Units with a moulded case circuit breaker and a contactor
Minimal size of the withdrawable part/removable cassette
In (A)
P (kW)
No. of the schematic diagram
of a circuit power of the
operating
breaker
device
17
up to 32 up to 15
up to 63 up to 22
up to 160 up to 55
up to 250 up to 75
up to 400 up to 110
400
up to 160
W04
W02
W1,5
W2
W3
W4
20
23
or P04
or P02
or P1,5
or P2
or P3
or P4
W4 or P4
W4 or P4
W4 or P4
W4 or P4
A
A
A
4M
The tables show dimensions of the most frequent
withdrawable parts or removable cassette.
Minimal size of the withdrawable part/removable cassette
No. of the schematic diagram
In (A)
of a disconnecting switch
15
13 14
up to 32
W04 or P04
up to 63
W02 or P02
W1,5
P1,5
or
up to 160
or
up to 250
W2
P2
up to 400
W3
P3
or
or
up to 630
W4
P4
A
V
1M 1,5M
h = 2150
14M
A
600
w
w1
w1 = 400 mm preferred
w1= 250 mm small quantity of cables
w1 = 600 mm and more big quantity of cables
Units with a disconnecting switch and a contactor
Minimal size of the withdrawable part/removable cassette
In (A)
P (kW)
of a circuit power of the
operating
breaker
device
up to 32 up to 15
up to 63 up to 22
up to 160 up to 55
up to 250 up to 75
up to 400 up to 110
400
up to 160
No. of the schematic diagram
18
W04 or P04
W02 or P02
W1,5 or P1,5
W2 or P2
W3 or P3
W4 or P4
21
W1,5 or
W4 or
W3 or
W4 or
24
P1,5
P4
P3
P4
W4 or P2
W4 or P4
W4 or P4
W4 or P4
Units with a contactor
Minimal size of the withdrawable part/removable cassette
No. of the schematic diagram
In (A)
P (kW)
of a circuit power of the
operating
breaker
device
up to 32 up to 15
up to 63 up to 22
up to 160 up to 55
up to 250 up to 75
up to 400 up to 110
up to 630 up to 160
18
W04
W02
W1,5
W2
W3
W4
or
or
or
or
or
or
P04
P02
P1,5
P2
P3
P4
Standard auxiliary equipment: two auxiliary relays, a fuse and a miniature circuit breaker.
9
ELEKTROBUDOWA SA
3.3. SECTIONS WITH A DIGITAL CONTROL AND SUPERVISION SYSTEM
One of the essential advantages of the NGW R switchgear system is its
facility to cooperate with the digital systems of protection, monitoring, control
and supervision.
A digital system is of a dissipated nature. It is based on microprocessor
apparatus of recognised producers, which enable to come on stream and
communicate in the PROFIBUS-DP (SIMOCODE), or MODBUSRTU
(MICOM P211 with the possibility of communication) protocol.
Microprocessor modules facilitate the performance of the following functions
in the motor drive supply units:
complete protection against overload and overheating,
ground fault detecting,
protection against operation with the phase currents unbalance and
phase decay,
motor control,
electrical ratings measuring ,
measuring and recording of work time and number of operations (only
SIMOCODE).
The control function can be performed from a control and supervision
station through a digital network with a suitable communication protocol or
through individual inputs of modules. In the latter case it is realised either by
individual push-buttons or directly from the front panel of the unit (in case of
SIMOCODE an additional operator panel must be provided).
Owing to the digital network it is possible to read such parameters as
module input and output state, measured electrical values, event recording,
etc., from the control and supervision station.
It is possible to incorporate the units with a circuit breaker or a
disconnector switch into the digital network of the switchgear: directly, if they
are provided with a suitable communication interface, or through an adapter,
if they are not.
The preferred dimensions of sections are shown in the table on page 2.
Digital control and supervision system
for drives and circuit breakers
Withdrawable part W02 with digital module
3.4. REACTIVE POWER COMPENSATION SECTIONS
Another advantage of the NGW R switchgear is the provision for bank of
capacitors on the withdrawable parts or in the sections, in one set of a
distribution assembly. It results in cost reduction, as it is not necessary to buy
a cable and a supply unit. Sections of the battery are fed directly from the
switchgear busbars through internal protection devices and contactors. 120
kvar batteries can be placed on the withdrawable parts, batteries with greater
power in sections with appropriate dimensions.
Withdrawable part according to
the schematic diagram 30
Size of the withdrawable part
power of the battery
P (kvar)
10 ÷ 50
30 ÷ 120
10
number of
No of the schematic diagram
regulation grades
30
2M
3M
2
4
Reactive power compensation section NGW R-1
3.5. LIGHTING SWITCHGEARS
Lighting switchgears are designed for protection and
control of lighting and heating installations, ventilation or airconditioning circuits and plug-in sockets in public buildings,
production bays, shopping centres, etc. They are usually
sections 250 or 400mm deep. Available widths are specified in
the table on page 2. Doors can have a sight glass for
inspecting the status of apparatus.
Sections with plug-in sockets on the side enclosure or
behind the door are used for feeding a construction site or a
building under repair. Sections used for this purpose usually
are 450 or 650 mm deep. Available widths are specified in the
table of the preferred dimensions on page 2. The height
depends on the requirements and can be a multiple
of M = 125mm.
Lighting switchgears
3.6. SECTIONS WITH BLOCKS OF DISCONNECTING SWITCHES
h3
Sections with blocks of disconnecting switches are applied in
industrial and power plants. They are particularly fit for municipal,
district or plant transformer substations.
3.1 3.2 3.3 3.4 3.5
4.1 4.2 4.3 4.4 4.5
h1
h2
2.1 2.2 2.3 2.4 2.5
d
50
w
w
w
w
Sections with blocks of disconnecting switches vertical
10M
13M
16M
height
h3
0
3M
6M
h (mm)
1400
1775
2150
depth
d (mm)
250, 450, 550
width
w (mm)
any width
from 400 to 1500
every 100mm
Dimensions of the switchgear with blocks of disconnecting
switches depend on current ratings and number of consumers.
With the supply of maximum current In 1600A the following
devices can be used:
a moulded case circuit breaker,
a disconnecting switch,
a disconnector,
direct busbar connection.
Rated continuous current of consumers is In 630A.
Switchger with blocks of fuse-switches
The preferred dimensions of sections
are shown in the table on page 2
11
Functional units with
fixed parts
Functional units witch
removable parts up to 630A
Functional units
with withdrawable parts
Functional units with
fixed parts
Functional units witch
removable parts up to 630A
Functional units
with withdrawable parts
ELEKTROBUDOWA SA
4. MAIN CIRCUITS
12
M
M
M
M
M
M
M
M
M
M
M
M
M
BUSDUCT
M
BUSDUCT
Main diagrams in ALBUM, available on an ask.
M
M
M
M
M
M
M
M
M
M
M
M
M
M
13
ELEKTROBUDOWA SA
Prefered equipment mounted in the sections of NGW R-1 is shown in the table below
Device
Type
Air circuit breaker
E-max
IZM
Masterpact
3WL1
M-PACT
Isomax / T-max
NZM
NS
3VF
Record Plus
OETL / OESA / OS
DMM / DMV
SIRCO
RA / RAB / RBK
SR / XR
SL
A / EH
DILM
LC
3RT10
CI
LSV
CL / CK
various
various
various
MICOM P210 / P211
FANOX
Simcode DP
AZRS / APZ
various
Moulded case circuit breaker
Switch / fuse-switch
Slim-line disconnecting switch
Contactor
Current transformer
Protection devices
ACO units
Auxiliary relays
Motor circuit breakers
Signalling lights and control buttons
Signalling diode
various
MS / MO
PKZM
GV
MBS
various
various
various
various
various
Ammeters, voltmeters, meters
Voltmeter switch
EA / MA / PA / FA and other
4G10
OMV
TZ-2
Connection pieces
WDU
various
various
ZRK / RK
Producer
ABB
MOLLER
Schneider Electric
SIEMENS
GE
ABB
MOELLER
Schneider Electric
SIEMENS
GE
ABB
Holec
Socomec
APATOR
ABB
JEAN MÜLLER
ABB
MOELLER
Schneider Electric
SIEMENS
Danfoss
ORAM
GE
ABB ZWAR SA
Polcontact Sp. z o.o.
MBS
AREVA
FANOX POLSKA
SIEMENS
Energotest-Energopomiar Sp. z o.o.
Relpol SA
FINDER
ABB
MOELLER
Schneider Electric
GE
ABB
MOELLER
Schneider Electric
PROMET
TWELVE
LUMEL SA
APATOR SA
ABB
MOELLER
..
Weidmuller
WAGO
Phoenix
CONTA-CLIP
In NGW R-1, 2 switchgear practically any devices can be mounted . Other functional units can be designed on request.
14
5. OPERATIONAL CHARACTERISTICS
5.1.
DEGREE OF PROTECTION
In order to provide protection against contact with live parts and
ingress of solid foreign bodies and water, the switchgear is designed as:
Assembly / element
Degree of protection
NGW R-1
NGW R-2
After opening the door
The withdrawable part in the removed position
up to IP42
IP55
IP2X
IP2X
The switchgear can be designed as an open-type assembly with a
lower degree of protection; this must be indicated in the engineering
design.
Number of vent openings is designed by ELEKTROBUDOWA SA. In
the IP55 design no vent openings can be foreseen.
5.2.
A section IP55 NGW R-2
INTERLOCKS
According to PN-EN 60439-1:2003/A1:2006 the withdrawable parts can be inserted to the connected position or
withdrawn only when the main circuit is interrupted. Provision is made for additional interlocking with padlocks or keyoperated locks.
The door of the functional unit/group can be provided with the interlock of opening in case of voltage presence. The door
may have a provision of sealing.
5.3.
PROTECTION AGAINST ELECTRIC SHOCK
Protection against direct contact is provided by barriers and enclosures.
Protection against indirect is provided by using protective circuits. The construction together with a protective conductor
provides a suitable impedance of fault loop, so the fault protection devices can operate. Either neutral earthing or
protective earthing is applied, according to the user's needs.
5.4.
EQUIPMENT SUPPLIED TOGETHER WITH THE SWITCHGEAR
A NGW assembly is delivered together with operation and maintenance manual and:
bolts for connecting the cubicles
a set of busbar connecting pieces
0,4l of paint
keys for the doors.
5.5.
OPERATION EQUIPMENT
An earthing part
earthing parts
For the time of repair or replacement of the equipment being
fed the parts which supplies the consumer is replaced with a
specially marked earthing part which has the function of closing
and earthing the outgoing contacts of the unit.
Withdrawable part tester
An extension cord
for removable parts
a cubicle for earthing and replacement parts
a withdrawable part tester
For the time of measurements and identification of damage
the inspected part of the switchgear is replaced with the
withdrawable part of a tester. The inspected part shall be
inserted onto the guide rails of the tester upper shelf. The
control circuits close automatically.
extension cord for the removable part
The extension cord is provided with a socket and a multi-pin
plug connected by a multi-core conductor. Connection of the
control circuits of the inspected removable part with the
switchgear is provided through this connector.
a hand operated lifting truck.
Hand operated lifting truck
A cubicle for earthing
and replacement parts
15
ELEKTROBUDOWA SA
2
A
A
5.6. Nameplates and labels
Examples:
A
A
A
Elements of the NGW system are identified by
nameplates according to PN-EN 60439-1:2003/A1:2006.
Numbering and descriptions of functional units shall be
given in the engineering design. A number of the functional
unit is created in the following way:
1.4 Feeding from RS2
A
1.5.3 Valve 3
V
A
1.8 Pump P2
x - number of a section, counting from the left side of the
assembly
y - number of a functional unit of full width of the section,
counting from the top of the switchgear
z - number of the functional unit counting from the left side of
the section (parts 1/4M and 1/2M)
6. MOUNTING
The switchgears are usually arranged in one or two rows. It is
also possible to arrange the sections in a broken line. They can
be connected by an attachment box or a section of busduct.
Minimum distance between the switchgear and the wall of a
room is 100 mm. Recommended height of the switchgear room
is h + 500 mm. For rooms which are not so high or when
busducts are applied, please consult the manufacturer.
Preparation of the room for mounting the switchgear consists of:
Main busbars connection of sections arranged at right angle
w
50
50
cubicle’s contour
50
w-100
maximal hole in the floor
50
w - cubicle’s width
w1 - connetions compartment’s
width
d - cubicle’s depth
Holes in the floor
Assemblies with various depths of the cubicles can be
leveled to the deepest cubicle.
L
L1
L2
L3
50
d
d - 100
d
50
w1-70
w
d
When the switchgear has been levelled the sections shall be
fixed:
on the foundation frame mounted in the floor or on the fake
floor made from steel shapes, with bolts or by welding in a
few spots from inside, the welds shall be protected with
anti-corrosive paint,
¢ directly on the floor, using anchor sleeves, e.g. TKKM-8.
w
w1
d - 100
¢ completion of construction and painting
¢ completion of ventilation and water-sewage systems
¢ completion of lighting installation
preparation of the mounting floor:
mounting and levelling the foundation frames with
accuracy ± 2 on the whole length
levelling the part of the floor with holes,
mounting the floor tiles on the fake floor,
provision of the door opening width w + 100 mm and
height h + 100 mm,
provision of key-lock or a padlock in the entrance door,
provision of an entry in the wall if the switchgear is fed
from the busduct situated in another room or from the
outside.
a foundation frame
- foundation frame’s width
- sum of widths cubicles with minimum depth d1
- sum of widths cubicles with minimum depth d2
- sum of widths cubicles with minimum depth d3
an anchor
Foundation frames
16
7. TRANSFORMER CHAMBER
Technical data
NGW K
Rated voltage
higher up to 7,2 kV, lower up to 690 V
Resistance to electric arcing
consequences, at current 65 kA in 0.1 s
65kA / 0,1s
Degree of protection of enclosures
Power of transformer up to
Chamber dimensions
width
mm
height
depth
IP4X
up to 1250 kVA
up to 630 kVA
1800
2200
2150
1400
660 kg
2150
1100
550 kg
Mass of the chamber without transformer
up to 3150 kVA
2600
2600
1600
760 kg
The transformer chamber NGW K for dry-type
transformer of maximum rated higher voltage up to
7,2 kV and power 3150 kVA has the following
features:
enclosure made of sheet painted with quality
powder paint
easy dismantling of front enclosures facilitates
inspections and drawing out of the transformer
characteristic lifting of enclosures
enclosures have no connecting elements
outside
inside: a section of low voltage busbar.
A chamber located next to the switchgear is
connected with busbars. Cable or busduct
connections are possible.
Switchgear 15kV
Transformer chamber
NGW K
Switchgear NGW R
Convenient dismantling of front enclosure of the chamber
15/0,4kV assembly for industrial use
17
ELEKTROBUDOWA SA
8. BUSDUCT
The enclosed busbar trunking system NGW M-1 is applied as a
primary or stand-by supply circuit and the interconnection between
sections. Its self-supporting structure has the following features:
the encapsulation, made of shaped and perforated aluminium
sheet, performs the function of an enclosure
conductors for any alternating or direct current systems are
manufactured
double-bar conductors are symmetrically laid
holeless connections of phase bars sections
straight sections, elbows and connection pieces are serially
manufactured in numerically controlled machining centres
¢ convenient location of inspection windows
¢ the enclosure is painted with quality powder paint, standard colour
RAL 7032, other colours possible.
Busbar supply of the switchgear
from the transformer room
Straight horizontal (vertical) section
h
h
b
b
NGW M-1
a
1,25 ÷ 2,0
2,5 ÷ 4,0 up to 3000
5,5
a
b
mm
350
550
850
h
200
250
250
a
Connection box
NGW M-1
h
b
1,25 ÷ 2,0
2,5 ÷ 3,15
4,0 ÷ 5,5
a
a
600
600
800
b
mm
600
600
1000
h
250
300
300
Vertical elbow
a
NGW M-1
h2
1,25 ÷ 2,0
2,5 ÷ 3,15
4,0 ÷ 5,5
h1
a
400
600
1000
h1
mm
350
400
400
h2
250
300
300
Horizontal elbow
h
1,25 ÷ 2,0
2,5 ÷ 3,15
4,0 ÷ 5,5
b
a
Clamp
18
NGW M-1
Wall passage enclosure
a
517
717
1117
b
mm
400
600
1000
h
250
300
300
Technical data of busduct
NGW M-1
Unit
Characteristic value
/1,25
/1,6
/2,0
/3,15
/4,0
/5,5
2500
3150
4000
5500
170
75
205
90
205
90
231
105
/2,5
Rated voltage of insulation
V
1000
Impulse withstand voltage 1.2/50 ms
kV
14,5
Rated current:continuous
Rated current peak
A
1250
1600
2000
kA
kA
110
45
110
45
150
60
Rated current withstand 1s
The Cu phase conductor
mm 2xP30x10 2xP40x10
Mass of 1m busduct
Cross-sectional area of the busbar
impedance
Mean value:
reactance
resistance
kg
mm
2
mÙ/m
2xP50x10
2xP80x10 2xP100x10 2x[2xP80x10] 2x[2xP100x10]
35
40
50
75
90
135
175
400x250
400x250
400x250
600x300
600x300
1000x300
1000x300
0,110
0,110
0,110
0,091
0,091
0,091
0,052
0,100
0,100
0,100
0,090
0,090
0,090
0,051
0,017
0,017
0,017
0,009
0,009
0,009
0,004
Degree of protection
9
up to IP43
10 6
1 7 11
7 11 6
9
3
8 12 4 1
1
4 2 3
5 3
9
1
8 3
8
le
po il.
s
za
le
po il.
s
za
ja
c
ek
II
s
1. straight horizontal section
2. straight vertical section
3. connection box
4. vertical elbow
5. horizontal elbow
6. clamp
ja
c
ek
k
blorzê.
sp
I
s
7. wall passage enclosure
8. level raiser
9. support sling
10. support gantry
11. wall bracket
12. supporting structure
Application of the NGW M-1 enclosed busbur trunking system in the transformer and switchgear rooms
19
ELEKTROBUDOWA SA
9. DESIGNING
ELEKTROBUDOWA SA offers to make a design of the
switchgear.
9.1. Contents of the engineering design
Customers are requested to read the following
recommendations before designing the switchgear.
Technical design of the switchgear should include:
1. technical description of the switchgear, including:
layout of network in which the switchgear will work,
required degree of protection,
table of panels application descriptions,
numbering and process descriptions,
methods of separating the functional units,
2. main circuits diagram with the apparatus and
connections (type, number, cross-section, capacity;
arrangement of busbar connections, phase
sequence)
3. arrangement of a section,
4. glass window in the door,
5. development of the auxiliary circuits:
selection of apparatus
circuit and installation diagrams
location of apparatus
method of entering the cables of the auxiliary circuits
(type, quantity, cross sections)
6. selection of interlocks,
7. summary of main and auxiliary circuit apparatus with
names of manufacturers on diskettes
8. drawings of foundation and arrangement of sections,
with busbar connections, in the room,
9. division into transport units,
10. colours of front covers (as a standard RAL 7032 grey
recommended)
Meter on the connections compartment’s door
9.2. Hints for designing
It is most convenient to design standard units specified in
the catalogue, following the guidelines:
1. functional units with withdrawable parts need the least space
2. functional units with withdrawable or removable parts are more
convenient and safer in operation
3. functional units with withdrawable or removable parts and
fixed-type units can be situated in the same section
4. in units consisting of several panels:
functional units of the highest operating currents shall be
arranged in the middle part of the section
functional units performing the same functions shall be
grouped together
External connections and foundation frames ca be
subject to agreement. Equipment other than from the
catalogue shall be agreed with the LV Construction Unit
in Konin.
NGW R-1 switchgear with digital modules- arrangement of a section
20
5. in functional units which are to perform a small number of
operations, a circuit breaker or a contactor can be replaced
with a mccb with a motor (M) or electromagnetic (S) operating
device
6. common circuits of the switchgear shall be arranged in the
common circuits compartment
7. provision shall be made for auxiliary circuits compartment of
suitable height to house the extended auxiliary circuits
8. in NGW R-2 IP55 assemblies and in assemblies filled with heat
emitting equipment the capacity of electric fuses shall be
corrected by a 0,8 ÷ 0,9 factor
9. the album of unified diagrams sent on request
10. the same depth of all assemblies is recommended
11. for any queries please contact the LV Construction Unit in
Konin, +48 63 2466 286.
NGW R-1 - controlgear in SKP substation
L1, L2, L3
1. 2
1.1
0,4kV; 1250A
ISN
500/5A
NH00
125
2. 2
2. 3
2. 4. 2
3RV134
100A
NT 1.6
1600A
I>
I>
STEROWANIE
LS 17
Ls4
LSV400
D0 16x24VDC
D1 16x24VDC
2x3RT1034
3RT1046
2x
STEROWNIK
PS-307 S7-300
5A 315-2DP
2. 5
OS 40
40A
3RV133
100A
3RV134
100A
M
DP/3WN6
2. 4. 3
1
QSA400
400A
DEHN
quard
2. 4. 1
3UF50
41-3.N0-1
SIMCODE
3UF50
2x
1
2
2
2
3UF50
21-3.N0-1
SIMCODE
3UF50
SIMCODE
3UF50
SIMCODE
3UF51
SIMCODE
3UF52
PI 81
3x
B77T
3x
1
3UF50
21-3.N0-1
2x
1
3x
BATERIA
KONDENSATORÓW
1
5A/4-20mA
15kW
30A
ZASILANIE
200kW
350A
M
POMPA
45kW
84A
M
M
POMPA
15kW
30A
M
M
POMPA
A schematic diagram of the NGW R switchgear with digital modules
10.
TRANSPORT
The switchgear is designed for transport on truck.
Other means, like a container or ship shall be specified
with your order. Transport units consist of a single section
or 2 ÷ 4 sections of total width not exceeding 3 m. Total
mass of a transport unit shall not exceed 600 kg.
Dimensions of the transport units shall be specified in the
design or an order. Not shock-resistant apparatus,
busbar sections and auxiliary equipment (lift truck, tester,
keys, etc.). are transported in separate packages.
Loading and unloading with a hoisting crane or
travelling crane.
Storing is not recommended. The switchgear should
be delivered directly to the installation place, suitably
prepared.
Switchgear’s transport
11. ORDERING
An order should include technical data of the switchgear, engineering design developed according to the guidelines of
chapter 9 “DESIGNING” and number and kind of equipment from item 4.8..
Product warranty terms are specified in the “Guarantee Certificate”.
To maintain the guarantee the user shall follow the manufacturer's requirements and rules stated in the operation and
maintenance manual (O&M). The guarantee for the switchgear does not cover apparatus supplied by the Client.
ELEKTROBUDOWA SA offers:
technical assistance
overall low and middle voltage electric power installation
professional fabrication and mounting of the foundation frame in the prepared room
transport of switchgear to the place of destination
installation of switchgears together with connections in the prepared room
supervision of installation performed by another company
21
Company Head Office
ELEKTROBUDOWA SA
Power Distribution Division
62-505 Konin, ul. Przemys³owa 156
tel. 48 63 2466 200 fax 48 63 2427 292
e-mail: dystrybucja@elbudowa.com.pl
40-246 Katowice, ul. Porcelanowa 12
tel. 48 32 2590 100
fax 48 32 205 27 60
e-mail: elbudowa@elbudowa.com.pl
http://www.elbudowa.com.pl
© Copyright by ELEKTROBUDOWA SA
All rights reserved. Subject to change without prior notice
® If not stated otherwise on the individual pages on this catalog, we reserve the right to include modifications, especially
regarding dimensions and weights.
Drawing are not binding.
All product destignations used are trademarks product names of ELEKTROBUDOWA SA and other suppliers.
We are in your disposal in any questions.
Edition Number Konin April 2009
MARKETING OFFICE
Marketing Office - Overseas Market
62-505 Konin, ul. Przemys³owa 156
tel. +48 63 2466 371/348, fax +48 63 2466 304
e-mail: dystrybucja.expzachod@elbudowa.com.pl