Sell LW-252KV/3150-50 SF6 Dead Tank Circuit Breaker

Sell LW-252KV/3150-50 SF6 Dead Tank Circuit Breaker	Total 20 Related Items Prev Next


Date Posted :	2008/12/18

Category :	Electrical Equipment & Supplies > Circuit Breakers

Offer Type :	Sell

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Beijng Huadong Electric Co.,Ltd

Membership Type : Free member
Registration Date : 2008-10-29
Country/Region :

China
Address : No. 68 Longzhuashu Nanli, Outside Zuo'An Men ?Chaoyang District, Beijing Beijing Beijing, China
Phone : 86-10-87694425
Fax : 86-10-87697121
Contact : Luo Mei

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Rated voltage                                    kV
252

Rated frequency                                   Hz
50

Rated current                                     A
3150

Rated short-circuit breaking current                kA
50

Rated short-circuit makeup current (peak)           kA
125

Rated short-time withstand current                   kA
50

Rated short-circuit duration                           S
2, (3)

Rated peak withstand current                        kA
125

Near-field fault breaking current  L75 L90             kA
37.5/45

Rated phase-out makeup and breaking current         kA
12.5

Rated circuit charge breaking current                  A
160

insulation level
1min rated power-frequency withstand voltage kV (virtual value)
over ground
460

between fracture
395+145

Rated lightning impulse withstand voltage(1.2/50µs) kV  (peak)
over ground
1050

between fracture
950+206

Rated pull in terminal            N
level vertical
1500

level horizontal
1000

vertical direction
1250

Creepage distance                                mm
6300, 7812

Rated operation sequence
O-0.3s-CO-180s-CO

Gas rated pressure of SF6 (20)                  MPa
0.6

Leak rate of SF6 per year        ≤                  %
1

Moisture content of SF6 gas      ≤                µ L/L
150

Continuous breaking times of rated short-circuit breaking current                                          times
20

Mechanical operation times                        times
3000

Break-brake time                                  ms
18~25

Close-brake time                                  ms
80~100

Break and close time            ≤                  ms
0.3

Close and break time            ≤                  ms
60

Asynchronism of anode-to-cathode break brake

≤                  ms
3

Asynchronism of anode-to-cathode close brake

Related Keywords: circuit breaker, dead tank circuit breaker, 252kv circuit breaker, SF6 circuit breaker

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