252KV voltage class product to be modified. This new type product has been satisfied with the development demands in the electrical market, The interrupter chamber of the product is designed to be a new one and the body of the circuit breaker is equipped with a new model hydraulic operating mechanism so that the circuit breaker become small-size type product. Its electrical and mechanical characteristics were increased obviously compared with the similar product in our country
Rated voltage
kV
252
Rated current
A
4000
Rated frequency
Hz
50
Rated short circuit breaking current
kA
50
Rated SF6 gas pressure ( at 20 ℃ gauge pressure )
MPa
0.5
Rated dielectric level
1min power freq.withstand voltage test kV
To earth and between poles
460
Between break
460+145
Lightning impulse withstand voltage test ( peak )kV
To earth and between poles
1050
Between break
1050+200
Jesco Projects (India) Pvt. Ltd.
7, Maskati Mahal, 2nd Floor, 119 K. M. Sharma Marg,
Mumbai 400-002, India. Tel: +91-22-22083558 / 22013804 / 22006388 Fax: +91-22-22062247 Email: contact(at)jescoindia.com
SF6 Dead Tank Circuit Breaker (252 KV)
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