© ABB Elektrik Sanayi A.S. - Page 1
v.EN0411
UniGear type ZS2
Product Presentation
UniGear ZS2 - Definition
© ABB Elektrik Sanayi A.S. - Page 2
Air insulated,
metal-clad,
internal arc-proof,
type tested,
compact,
medium voltage
switchgear
for
power distribution
systems below
36kV rated voltage level
Definition according to new IEC 62271-200
Partition class
: PM
Loss of service continuity category
: LSC2B
Internal arc classification
: IAC AF-LR
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UniGear ZS2 – Positioning in portfolio
WEB page view from www.abb.com
UniGear ZS2 – Electrical Ratings
Standards
IEC
Rated voltage
[kV]
36
Rated insulation level
[kV]
70/170
Rated current, busbar
[A] up to
2500
Rated current, circuit breaker
[A]
1250
1600
2000
2500
Rated short-time withstand current
[kA] up to
25 / 3s
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31.5 / 1s*
Peak withstand current
[kA] up to
80
Internal arc withstand current
[kA]
25/1s
Normal service performances are guaranteed under the
following conditions
Minimum ambient temperature - 5 °C
Maximum ambient temperature + 40 °C
Maximum relative humidity
95 %
Normal unpolluted atmosphere
* Earthing switch making capacity is upto 25kA
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UniGear ZS2 – Main charateristics
UniGear ZS2 – Main charateristics
Compact dimensions and space saving design !

1000 mm wide version upto 1600A rated feeder current.
 Wall standing option with front access posibility.
Dimension comparison with the similar products in the market
<2000A Feeder
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GIS ZX1
UniGear ZS2
UniGear ZS3.2
QBN7
F400
DNF7
VH3
BT2
ABB
ABB
ABB
Efacec
Schneider
Areva (Alstom)
Tamco
Siemens
>2000A Feeder
GIS ZX1
UniGear ZS2
UniGear ZS3.2
QBN7
F400
DNF7
VH3
BT2
ABB
ABB
ABB
Efacec
Schneider
Areva (Alstom)
Tamco
Siemens
WIDTH
600
1000
1200
1200
1100
1305
1200
1550
WIDTH
800
1200
1200
1200
1100
1305
1200
1550
DEPTH
1750
2400
2565
2570
3020
2610
3080
2450
DEPTH
1750
2600
2565
2570
3020
2610
3080
2450
HEIGHT
2100
2161
2400
2250
2255
2500
2300
2400
HEIGHT
2100
2161
2400
2250
2255
2500
2300
2400
Foot Print
m2
1.1
2.4
3.1
3.1
3.3
3.4
3.7
3.8
Foot Print
m2
1.4
3.1
3.1
3.1
3.3
3.4
3.7
3.8
Volume
m3
2.2
5.2
7.4
6.9
7.5
8.5
8.5
9.1
Volume
m3
2.9
6.7
7.4
6.9
7.5
8.5
8.5
9.1
UniGear ZS2 – Main charateristics
Easy installation & maintenance !

Variety of access for maintenance & installation with withdrawable CB design
2
Access to Busbar
Compartment
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1- From back
2- From Top
1
Access to Cable
Compartment
1- From back
2- From front, CB
compartment
3- From front, bottom cover
2
1
3
UniGear ZS2 – Main charateristics
Safe maximum service continuity !

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Metal Clad design
 Seperate compartments segregated with earthed metallic partitions
UniGear ZS2 – Main charateristics
Reliable !

Fully type tested
 Front, back and lateral internal arc protection; maximum safety for operators
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Release of hot gases from
each compartment in case of
internal arc fault
Rear
Front
Protection
Protection
Lateral Protection
UniGear ZS2 – Main charateristics
Internal arc test videos of ZS2
Circuit Breaker
compartment
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Cable compartment
Busbar
compartment
UniGear ZS2 – Main charateristics
Long life, modern design !

Construction with AluZinc steel sheet
 Bolted design
The aluzinc is iron, laminated with a metallic
covering:
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The iron gives physical strength, while the alloy
covering (aluminium-55% & zinc-43.4%) gives a
good resistant to corrosion;
Aluzinc does not distort at high temperatures (up to
310°) and outlasts traditional galvanising by
between 2 & 6 times.
UniGear ZS2 – Main charateristics
Quality assured !
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
Manufacturing factory is ISO 14001 and ISO 9001 certified
UniGear ZS2 – Factory

Located in Istanbul, Turkey
 Global focused feeder factory (GFFF) for UniGear type ZS2

Complete with electrical/mechanical design, manufacturing
and R&D facilities

Sales, Design, Manufacturing facilities for LV, MV
Switchgear
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
6500 sqm production facility

CNC steel fabrication

Copper fabrication

Powder coating facility

Assembly & Testing

ISO 9001 & ISO 14001 Certified

Delivery capacity 2000 cubicles / year
UniGear ZS2 – Internal construction
4 LV compartment
2 Main busbar compartment
1 Circuit Breaker compartment
3 Cable compartment
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5 Arc duct/channel
7 Voltage transformers
6 Current transformers
8 Earthing switch
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UniGear ZS2 – Circuit Breaker Compartment

Compact and light circuit breaker (more or less 24kV size and weight) comparing
with other 36 kV circuit breakers in the market

Withdrawable casette type circuit breaker carried with fixed or hydrolic trolley

Circuit breaker racking in/out with closed door (interlocked with CB movement),
inspection window on the door

Strong, robust compartment (Panel is delivered while the circuit breaker is inside)

Door with single action handle locking mechanism

Ergonomic handle optionally lockable by padlock

No door adjustment required at site after transportation

Robust bushings

Automatic shutters operated by CB or VT truck, optionally lockable with padlocks
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UniGear ZS2 – Busbar Compartment

All busbars are round shape heat shrink material insulated copper

No supportive insulators are used for busbar system. All are supported by
bushings

Busbars bolted together and connection points are insulated with re-usable
polycarbonate T-boots which can be easily installed after the connection is made

Accessible from top and rear
UniGear ZS2 – Cable Compartment

Tubular insulated busbars

Cable connection points do not require any
insulation. Distance between phases and
phase to earth are standard 36kV air
insulation distance

Designed for standard AIS cable terminations.
No need for special kits.

Single or three core cable connection
possibility upto 4 x 630 mm2

Accessible from front , rear and sides*
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* Innovative solution !
During the first installation at
site, cable connections can
be made easily by
accessing the cable
compartment from the
opening at the right side of
each cubicle
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UniGear ZS2 – Components

Circuit Breakers

Earting switch

Protection, control and metering equipment

Instrument transformers

Other small electrical equipment
UniGear ZS2 – Components
Circuit Breakers
 ABB HD4 type SF6 gas circuit breaker, state of art SF6
breaking technology
 Poles are sealed for life. Additionally Gas signalling device is
also available
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 Auto-puffer circuit breaker

Auto-puffer techniques jointly operates as a pure puffer device up to
30% of the rated breaking current and as a self-blast device at higher
values

Extremely smooth quenching technique

No chopping-current

No over-voltages

No re-strike and re-ignition
 Interruption of currents higher than the rated thermal current
even at atmospheric pressure
 Separation between main and arcing contacts

No wearing of main contacts
 Opening time 40- 45 ms


The same opening time of a vacuum circuit-breaker
Reduction of the dynamic stresses of the plant
Life time sealed
poles
!
UniGear ZS2 – Components
Earthing Switch
 ABB ST-US36 type
 Class E1
 Making capacity
 Optional key-locks and padlocks
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 Visual inspection of earthing switch movement is possible from the front of the
panel through dedicated window
UniGear ZS2 – Components
Instrument Transformers
 No special transformer design is
needed
 CTs are block type, dimensions are
according to DIN standards
 Core CTs can be applicable
 Withdrawable of fixed type VTs
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 Primary fused or non-fused
UniGear ZS2 – Components
Protection, control and metering
 Variety of applications avaliable from most sophisticated systems to simple
conventional systems depending on the customer request and project
requirement
 Possible to use multi-functional intelligent systems which cover all the needs
regarding below functions





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
Measurement
Control
Signaling
Interlock
Automation
Communication
UniGear ZS2 – Cubicle configurations
Single Busbar Applications
IF Circuit breaker Cubicle
 BT Bus tie cubicle
 R Bus riser cubicle
 M Measuring cubicle
 IFD Direct cable connection cubicle
 IFDM Direct cable connection with metering
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
Double Busbar Applications
DIF Duplex circuit breaker cubicle
 DIFD Duplex direct cable connection cubicle
 DBT Duplex Bus tie and riser cubicle
 DM Duplex measuring cubicle

UniGear ZS2 – Standard configurations
 There are two types of standard panel construction
 Correct required version shall be selected by using “Selection table” in catalogue
© ABB Elektrik Sanayi A.S. - Page 24
1000 mm wide version
1200 mm wide version
UniGear ZS2 – Variation designs
 Apart from the standard types, variation designs are also avaliable upon request.
 Depending on the specific project requirements, order-bound design studies can
also be made in addition to available (standard or variation) cubicle types
Top busbar incoming
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Top cable connection
CTs on main busbar
UniGear ZS2 – Cubicle selection table
Depth (mm)
Height (mm)
Height with gas exhaust duct (mm)
Width (mm)
Branch Rated current (A)
Incoming/Outgoing
IF
2400
2600
2161
2161
2662
2662
1000
1200
1250 1600 2000 2500 1250 1600 2000 2500
with Fixed Voltage Transformers
with Fixed fused Voltage Transformers
with withdrawable fused Voltage Transformers
BT
R
M
IFD
Bus-tie
Riser
Measurements
Direct cable connection
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with fixed Voltage Transformers
IFDM
with fused fixed Voltage Transformers
Direct cable connection with measurement
(with withdrawable fused Voltage Transformers)
Connections
Connection suitable for power cables up to 2x630mm2 per phase
Connection suitable for power cables up to 4x630mm2 per phase
Available. Requires additional measuring cubicle.
UniGear ZS2 – Standard cubicle types
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
IF Circuit breaker Cubicle
Key to components
Standard components
Accessories
Alternative solutions
UniGear ZS2 – Standard cubicle types
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
BT&R Bus tie and riser Cubicle
Key to components
Standard components
Accessories
Alternative solutions
UniGear ZS2 – Standard cubicle types
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
M Measuring Cubicle
Key to components
Standard components
Accessories
Alternative solutions
UniGear ZS2 – Standard cubicle types
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
IFD Direct cable connection Cubicle
Key to components
Standard components
Accessories
Alternative solutions
UniGear ZS2 – Standard cubicle types
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
IFDM Direct cable connection with Measurement Cubicle
Key to components
Standard components
Accessories
Alternative solutions
UniGear ZS2 – Standard cubicle types
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
Duplex busbar solutions
Key to components
Standard components
unit
Accessories
cable incoming/ out going f eeder cubicle
Alternative solutions
DIF unit
DIFD
Incoming/ out going f eeder cubicle
Direct
DM
DBT unit
unit
Measuring cubicle
Bust -t ie and riser cubicle
© ABB Elektrik Sanayi A.S. - Page 33
UniGear ZS2 – Standard cubicle types
Typical DIF (Incoming/outgoing feeder) panel sectional drawing
Width
Depth
Height
: 1000 mm
: 3820 mm
: 2161 mm (2662 mm with gus duct)
UniGear ZS2 – References
Algeria
 Argentina
 Australia
 Brazil
 Burkino Faso
 Colombia
 Equatorial Guinea
 Fiji
 Iceland
 Indonesia

Iran
 Iraq
 Jordan
 Malaysia
 Mali
 Mozambique
 New Zealand
Saudi Arabia
 Senegal
 Serbia
 Seychelles
 South Africa
 Spain

38 countries
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
Nigeria
 Phillipines
 Portugal
 Qatar
 Russia

Sri Lanka
 Sudan
 Sweden
 Thailand
 Turkey
 Turkmenistan
 United Arab Emirates
 Tanzania
 Vietnam
 Yemen

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