ISO 9001: 2000
Circuit
Breakers
Switch
Disconnectors
Disconnectors
Earthing
Switches
Operating
Devices
Accessories
OW
MV indoor
disconnecting switch
Catalogue No 01.01.01.EN
1. APPLICATION.
4. CONSTRUCTION AND OPERATING PRINCIPLE.
Triple-pole indoor disconnecting switches are meant opening
and closing electrical circuits in which current does not flow. In open
position, they make a safe visible isolating gap. Earthing switches
mounted on disconnecting devices are meant for short circuiting and
earthing electrical grids that have been disconnected from the power
supply. They are used in high-voltage indoor AC switchgear.
Disconnecting switches type OW have secant construction.
The base is a steel frame which, together with the shaft and angle of turn
limiters, forms a non-dismountable sub-assembly. Bracketing isolators
are fastened to the frame, and are the mounting for the current circuit.
The interpole isolation is an air gap, and in copies with a smaller interpole
scale, the air gap is further assisted by isolating plates. The
disconnectors, equipped with manual or electric operating mechanism,
may operate in horizontal or vertical position.
The disconnectors may be operate by the following operating
mechanisms: electric, type NSW30-1; manual, type NR-1; manual, type
NRK; manual, type NRWO4.
The construction of disconnectors allows for the addition of earthing
switches. Earthing switches may be located on the side of the permanent
inseparable contact (lower earthing switches) or on the side of the
permanent separable contact (upper earthing switches). Between the
disconnector shaft and the earthing switch shaft, there is a mechanical
interlocking ensuring the proper order of switching.
At the base of the disconnector, there is an earth terminal with M12x40
screw. The disconnectors may be equipped with an auxiliary switching
device coupled with the apparatus, located on the end of the shaft
opposite to the operating mechanism. The standard number of switch
contacts is 12 (6NC+6NO).
2. CHARACTERISTIC FEATURES.
• modular principle;
• motor driven operating mechanism type NSW30-1 or manual
operating mechanisms type NR-1, NRK, NRWO4;
• high durability and reliability;
• good technical parameters;
• compact construction.
3. COMPLIANCE WITH STANDARDS.
The disconnecting switches type OW complies with Polish
standard PN-93/E-06107 concerning the international standard IEC
129:1984.
5. TECHNICAL DATA.
No.
Designation
Value
1.
Rated voltage
12 [kV]
12 [kV]
24 [kV]
24 [kV]
2.
Znamionowy
Rated currentprąd ciągły
800 [A]
1600 [A]
800 [A]
1600 [A]
63 [kA]
63 [kA]
40 [kA]
80 [kA]
80 [kA]
1-sec.
-
-
16 [kA]
31.5 [kA]
31.5 [kA]
3-sec.
25 [kA]
25 [kA]
-
-
-
3.
Rated peak withstand current
4.
Rated short-time withstand current
36 [kV]
1600
1600
[A][A]
5.
Power frequency withstand voltage 50Hz
- to earth and between poles
- across isolating distance
28 [kV]
32 [kV]
28 [kV]
32 [kV]
50 [kV]
60 [kV]
50 [kV]
60 [kV]
95 [kV]
120 [kV]
6.
Impulse withstand voltage
- to earth and between poles
- across isolating distance
75 [kV]
85 [kV]
75 [kV]
85 [kV]
125 [kV]
145 [kV]
125 [kV]
145 [kV]
190 [kV]
220 [kV]
7.
Pole distance:
- in air insulation
- assisted by isolating plates
200 [mm]
125 [mm]
180 [mm]
-
275 [mm]
160 [mm]
275 [mm]
-
390 [mm]
-
8.
Weight
- without earthing switch
- with earthing switch
24 [kg]
32 [kg]
33 [kg]
-
35 [kg]
42 [kg]
50 [kg]
-
90 [kg]
98[kg]
6. DESIGNATIONS OF DISCONNECTOR TYPE OW FOR 12, 24 AND 36kV 800A AND 1600A
OW-
Disconnecting switch
12
Rated voltage 12 kV
24
Rated voltage 24 kV
8
Rated current 800 A
Z
Insulator type - resinous
P
Insulator type - porcelain
UD
Lower earthing switch 1
UG
Upper earthing switch 1
125
200
Pole distance 125mm for 12 kV 2
Pole distance 200mm for 12 kV
160
Pole distance 160mm for 24 kV 2
275
Pole distance 275mm for 24 kV
An example of an order A:
An example of an order B
Disconnecting switch type OW-12/8/Z/UD/200
Motor operating mechanism type NSW30-3/220Vdc (for disconnector)
Manual operating mechanism type NR-1/01 (for earthing switch)
Auxiliary switch type ŁK 16 (3NO+3NC)
Disconnecting switch type OW-24/8/Z/UG/275
Manual operating mechanism type NR-1/01 (for disconnector).
Manual operating mechanism type NR-1/02 (for earthing switch)
Adapted for right-hand side operation unit
Disconnecting switch for 12kV, 800A, equipped with resinous
insulators, lower earthing switch and pole distance 200mm.
Adapted for left-hand side operation unit.
Disconnecting switch for 24kV, 800A, equipped with resinous
insulators, upper earthing switch and pole distance 275mm.
Adapted for right-hand side operation unit.
Page 2/8
ZWAE Sp. z o.o.
Notes:
1) Standard version of disconnecting switch is adapted for operating
mechanism on the left hand side. The side of operating lever is
defined from the current circuit points.
2) Assisted by isolating plates.
3) The type of operting mechanism should be specified during placing
an order:
- rotary motion NR-1 or NSW30
- plane motion NRW04
Accessories:
- auxiliary switch type ŁK15 2NO+2NZ or 3NO+3NZ
- auxiliary switch type ŁP-1 6NO+6NZ coupled by tension member
with main shaft of apparatus
7. DISCONNECTING SWITCH TYPE OW FOR 12 AND 24 kV 800 A.
A3
A4
Terminal strip 800A
C4
B1
C4
Dimensions [mm]
Disconnecting switch type
A1
OW-12/8/Z/125
(assisted by isolating plates)
A2
A3
A4
A5
A6
B1
B2
B3
C1
C2
C3
C4
C5
300 260 485 298 230 230 277 438 500 562 440 410 125 163
OW-12/8/Z/UG/125
(assisted by isolating plates)
300 260 485 298 230 230 277 438 500 562 440 410 125 163
OW-12/8/Z/UD/125
(assisted by isolating plates)
300 260 485 298 230 230 277 438 500 562 440 410 125 163
OW-12/8/Z/200
300 260
-
298 230 230 277 438
-
712 590 560 200 163
OW-12/8/Z/UG/200
300 260
-
298 230 230 277 438
-
712 590 560 200 163
OW-12/8/Z/UD/200
300 260
-
298 230 230 277 438
-
712 590 560 200 163
OW-24/8/Z/160
390 360 705 386 318 318 360 595 764 660 510 480 160 188
(assisted by isolating plates)
OW-24/8/Z/UG/160
(assisted by isolating plates)
390 360 705 386 318 318 360 595 764 660 510 480 160 188
OW-24/8/Z/UD/160
(assisted by isolating plates)
390 360 705 386 318 318 360 595 764 660 510 480 160 188
OW-24/8/Z/275
390 360
-
386 318 318 360 595
-
OW-24/8/Z/UG/275
390 360
-
386 318 318 360
595
-
895 740 710 275 188
OW-24/8/Z/UD/160
390 360
-
386 318 318 360 595
-
895 740 710 275 188
ZWAE Sp. z o.o.
895 740 710 275 188
Page 3/8
A3
A1
A2
8. DISCONNECTING SWITCH TYPE OW FOR 12 AND 24 kV 1600 A
Terminal strip 1600A
Dimensions [mm]
Disconnecting switch type
A1
A2
B1
A3
B2
C1
C2
C3
C4
370 326 398 290 490 620 550 520 180
435 390 463 360 590 895 740 710 275
OW-12/16/Z/180
OW-24/16/Z/275
9. DISCONNECTING SWITCH TYPE OW FOR 36 kV 1600A.
B2
A5
B1
A4
A1
A2
A3
8
Terminal strip 1600A
C4
C4
C3
C2
C1
Dimensions [mm]
Disconnecting switch type
A1
Page 4/8
A2
A3
B1
B2
C1
C2
C3
C4
A4
A5
-
-
503 913 1300 1040 1000 390
-
503 913 1300 1040 1000 390
OW-36/16/Z/390
590 530 605
OW-36/16/Z/390/UD
590 530 605 413
OW-36/16/Z/390/UG
590 530 605
-
413 503 913 1300 1040 1000 390
ZWAE Sp. z o.o.
MV HIGH-CURRENT INDOOR DISCONNECTING SWITCH TYPE OW
10. TECHNICAL DATA.
No.
Designation
Value
1.
Rated voltage
3,6 [kV]
3,6 [kV]
12 [kV]
12 [kV]
36 [kV]
36 [kV]
2.
Rated current
2500 [A]
4000 [A]
2500 [A]
4000 [A]
2500 [A]
3150 [A]
3.
Rated peak withstand current
150 [kA]
150 [kA]
150 [kA]
150 [kA]
125 [kA]
150 [kA]
4.
Rated short-time withstand current (1sec.)
60 [kA]
60 [kA]
60 [kA]
60 [kA]
50 [kA]
60 [kA]
5.
Power frequency withstand voltage 50Hz
- to earth and between poles
- across isolating distance
10 [kV]
12 [kV]
10 [kV]
12 [kV]
28 [kV]
32 [kV]
28 [kV]
32 [kV]
70 [kV]
80 [kV]
70 [kV]
80 [kV]
6.
Impulse withstand voltage
- to earth and between poles
- across isolating distance
40 [kV]
46 [kV]
40 [kV]
46 [kV]
75 [kV]
85 [kV]
75 [kV]
85 [kV]
170 [kV]
195 [kV]
170 [kV]
195 [kV]
300 [mm]
300 [mm]
360 [mm]
520 [mm]
65 [kg]
80 [kg]
95 [kg]
130 [kg]
7.
Pole distance in air insulation
8.
Weight
260 [mm] 260 [mm]
59 [kg]
76 [kg]
11. SINGLE-POLE DISCONNECTING SWITCH TYPE OW FOR 3,6 kV 2500A AND 4000A.
375
72
272
322
332
15
f14
118
372
222
174
M12
275
according to an order
305
440
Terminal strip
2500A
ZWAE Sp. z o.o.
4000A
Page 5/8
12. DOUBLE-POLE DISCONNECTING SWITCH TYPE OW FOR 3,6 kV 2500A AND 4000A.
635
482
434
260
f14
20
272
322
402
452
72
M12
280
320
118
according to an order
470
auxiliary switch
Terminal strip
2500A
4000A
9. ODŁĄCZNIK
13.
DISCONNECTING
WNĘTRZOWY
SWITCH TYPU
TYPE OW
OWFOR
NA NAPIĘCIE
12 kV 2500A
36 kV
AND
i PRĄD
4000A.
ZNAMIONOWY 1600 A.
A3
15
A1
A2
B4
A4
f14
B1
C4
C5
C4
B2
C3
B3
C2
C1
Terminal strip
2500A
4000A
auxiliary switch
Dimensions [mm]
Disconnecting switch type
A1
A2
A3
A4
B1
B2
B3
B4
C1
C2
C3
C4
C5
OW-12/25/Z/300
360 310 370 410
330 360 540
72
999
810 774 300 146
OW-12/40/Z/300
360 310 440 490
335 375 565
72
999
810 774 300 146
Page 6/8
ZWAE Sp. z o.o.
14. DISCONNECTING SWITCH TYPE OW FOR 36 kV 2500A.
Terminal strip 2500A
15. DISCONNECTING SWITCH TYPE OW FOR 36 kV 3150A.
Terminal strip 3150A
ZWAE Sp. z o.o.
Page 7/8
Offer query - speciment.
Disconnecting switch type
indoor
Rated voltage
............ kV
Rated current
............ A
Rated short-time withstand current
............ kA (1s)
Pole distance
............ mm
Designation
OW - _ _ / _ / _ / _ _ / _ _ _
(referring to table on page 2)
Typical equipment
Operation type
Rotary manual type NR-1
Plane manual type NRW
Rotary motor type NSW30
Assembling side of operation mechanism
On the left hand side
On the right hand side
Earthing switch
Without
Upper
Lower
2NO + 2NC
3NO + 3NC
LP-1
Mounted directly on the main shaft
Mounted directly on the main shaft
Coupled by tension member
Additional equipment
Auxiliary switch
Electromagnetic interlocking for manual rotary operation mechanism type NR-1
Voltage level of electromagnetic interlocking
AC
DC
24V
110V
Quantity:
Delivery date:
Terms of delivery:
Terms of payment:
220V
........................................
........................................
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Notes:
There are possibilities of disconnector configuration for individual needs.
Some improvements and alteration may occur as a consequence of development in manufacturing techniques.
Zakład Wytwórczy Aparatów Elektrycznych Sp. z o.o.
ul. Gdańska 60; 84-300 Lębork
Tel.: +48 59 86-336-15; Fax: +48 59 86-333-86
e-mail: zwae@zwae.com.pl
www.zwae.com.pl