GW7B-Series
GW7B-Series
Rated voltage (kV)：72.5，126，145，252，363，420，550，800
Rated frequency (Hz)：50/60
Rated current (A)：1250、2000、2500、3150、4000、5000
Rated peak withstand current (kA)：80、100、125、160
Product use and characteristics
This product is a three-column horizontal break knife flip type, can be attached to one or both sides of the JW10 type ground switch. Isolation switch adopts SRCJ2 type electric actuator three-pole linkage operation; The ground switch adopts SRCS type manual operating mechanism or SRCJ type electric operating mechanism for three-pole linkage operation.
This product conforms to GB1985-2004 "High voltage AC isolation switch and ground switch", GB11022-1999, DL/T593-2006 "High voltage switchgear and control equipment standard common technical requirements", DL/T486-2000 "AC high voltage isolation switch and ground switch ordering technical conditions" and other standards. At the same time, it meets the "Relevant provisions on ordering high-voltage isolation switches" issued by the State Grid Company for perfection. Through a full set of type tests, and through 9 degree intensity seismic analysis.
Product parameter
Serial number | Project | Argument |
1 | Rated voltage (kV) | 72.5，126，145，252，363，420，550，800 |
2 | Rated frequency (Hz) | 50/60 |
3 | Rated current (A) | 1250、2000、2500、3150、4000、5000 |
4 | Rated peak withstand current (kA) | 80、100、125、160 |
5 | Rated short-time withstand current (kA) | 31.5、40、50、63 |
6 | Rated short circuit duration (s) | 4、3 |
7 | Mechanical life (times) | 10000 |
Frequently Asked Questions
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