Self-compression circuit breakers
Technical parameters:
252kV SF6 Circuit Breaker
MODEL: LW10B-252
VOLTAGE: 252KV
Circuit Breakers for 72.5 kV up to 800 kV
Circuit breakers are the central part of AIS and GIS switch-gear. They have to meet high requirements in terms of: Reliable opening and
closing Consistent quenching performance with rated and short-circuit currents even after many switching operations High-performance,
reliable, maintenance-free operating mechanisms.
Technology reecting the latest state of the art and years of operating experience are put to use in constant further development and optimization
of Siemens circuit break-ers. This makes Siemens circuit breakers able to meet all the demands placed on high-voltage switchgear.
The comprehensive quality system is certied according to DIN EN ISO 9001. It covers development,manufacturing, sales, commissioning and
after-sales service.
Circuit breakers for air-insulated switchgear are individual components, and are assembled together with all indi-vidual electrical and mechanical components of an AIS installation on site.
Due to the consistent application of a modular design, all Siemens circuit breaker types, whether air-insulated or gas-insulated, are made up of
the same range of compo-nents based on our well-proven platform design (g.1): Interrupter unit Operating mechanism Sealing system Operating
rod Control elements.
The principle of the operating mechanism with charging gear and latching is identical on all types (g. 3, g. 4).
Differences between mechanism types are in the number, size and arrangement of the opening and closing springs. Main features at a glance:
Uncomplicated, robust construction with few moving parts Maintenance-free Vibration-isolated latches Load-free uncoupling of charging
mechanism Easy access 10, 000 operating cycles.
| TYPE |
|
|
|
| Rated voltage |
KV |
72.5 |
123 |
145 |
170 |
245 |
300 |
362 |
420 |
550 |
800 |
| Number of interrupter units per pole |
|
1 |
2 4 |
| Rated power-frequency withstand voltage/min |
KV |
140 |
230 |
275 |
325 |
460 |
460 |
520 |
610 |
800 |
830 |
| Rated lightning impulse withstand voltage/min |
KV |
325 |
550 |
650 |
750 |
1050 |
1050 |
1175 |
1425 |
1550 |
2100 |
| Rated switching impulse withstand voltage/min |
KV |
- |
- |
- |
- |
- |
850 |
950 |
1050 |
1175 |
1425 |
| Rated normal current, up to |
KV |
4000 |
4000 |
4000 |
4000 |
4000 |
5000 |
5000 |
5000 |
5000 |
5000 |
| Rated short-time withstand current (1 s - 3 s), up to [kA (rms)] |
|
40 |
40 |
40 |
40 |
50 |
40 |
63 |
63 |
63 |
63 |
| Rated peak withstand current, up to |
|
108 |
108 |
108 |
108 |
135 |
108 |
170 |
170 |
170 |
170 |
| Rated short-circuit breaking current, up to |
|
40 |
40 |
40 |
40 |
50 |
40 |
40 |
40 |
40 |
40 |
| Type of operating mechanism |
|
Stored-energy spring mechanism |
Our Best Service For You
1. Pre sale service
A. Make technical solution
B. Send quotation, technical data sheet and drawing
C. Prepare power transmission plan, testing plan,and shipment plan
2. In sale service
A. Supervise the manufacturing schedule totally in accordance with the plan
B. Send photos to customer during every manufacturing process(hold point)
C. Inform the customer one week before testing.
3. After sale service
A. Installation and commissioning, training the workers
B. Quick response within 12 hours any time
C. Provide 12 months gurantee period normally.
Thanks for choosing VILLE as your reliable partner and please trust both of
us will create a brilliant future!
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