Urban 31.5kA Power Transformer Substation Intelligence Frame Circuit Breaker

 Technical specifications

High Voltage Unit

Rated Frequency

50/60Hz

Rated Voltage

6.3kV,11kV,20kV,33kV

Utmost Working Voltage

6.9kV,11.5kV,24kV,40.5kV

Rated Current

400A,630A,1250A

Transfer Current

1200~3150A

Power Frequency Withstand Voltage

42/48kV

Lightning Impulse Withstand Voltage

75/85kV

Rated Drop- out current

31.5kA

Power Transformer

Rated Voltage

6.3kV,11kV,20kV,33kV

Rated Capacity

30~2000kVA

Tapping Range

2 x 2.5%

Low Voltage Unit

Rated Voltage

220v,380V,690V,1140V

Main Loop Rated Current

50~4000A

Branch Loop Rated Current

5~800A

Shell

Protection Level

HV Side: IP33  Transformer: IP23  LV Side: IP33

Noise Level(dB)

50

Rated Voltage

40.5kV

Rated Current

1250A,1600A,2000A

Rated Short Circuit Breaking Current

20kA,25kA,31.5kA

Rated Short Circuit Withstand Current(peak value)

50kA,63kA,80kA

Rated Voltage

12kV

Rated Current

630A,1250A,1600A,2000A,2500A,3150A

Rated Short Circuit Breaking Current

20kA,25kA,31.5kA,40A,50A

Rated Short Circuit Withstand Current (peak value)

50A,63A,80A,100A,125A

Item

Rated Capacity

Voltage Ration

Rated Capacity

Tapping Range

Connection Type

S11-M

33kV

40.5/0.4kV

50~2500

±2 ×2.5%

Dyn11

11kV

12/0.4kV

50~2500

±2 ×2.5%

Dyn11

Item

Rated Primary Current

Primary Secondary Current

Exact Hierarchy

10% Not Less Than

Second Load

LZZBJ9-35

40~500A

5A

0.5/10P 10

10

20VA

LZZBJ9-10

100~1000A

5A

0.5/10P 10

10

20VA

Type

Rated Voltage(V)

Rated Capacity(VA)

Primary

Secondary

Auxiliary

0.2Level

0.5Level

6P

JDZ9-35