Specifications

Description

This products can meet GB/T11022-1999, IEC60694-1996 Common specifications for high-voltage switchgear and controlgear standards

This porduct is 3-phase AC 50Hz outdoor HV transmission & distribution equipment, suitable for Power Plant, Substation.  Especially, for seismically active zone, heavy pollution site and high altitude area.

Main technical parameters of circuit breaker

Item

Rated parameter

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°C)                  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

≤                  ms

5

Monopole gas weight of SF6                         kg

46


Terms

FOB Price:
Minimum Order: 1 Set/Sets
Port: any port in China
Payment Terms: L/C,T/T

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