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ZN85 Indoor High Voltage Vcb
  • ZN85 Indoor High Voltage VcbZN85 Indoor High Voltage Vcb

ZN85 Indoor High Voltage Vcb

ZN85 Indoor high voltage vcb produced by Kexun, a well-known power transmission and distribution manufacturer in China, is suitable for three-phase AC 50Hz power system with rated voltage of 40.5kV, and can be used as load current, overload current and fault current for industrial and mining enterprises, power plants and substations. Use
Model: ZN85
Brand:KEXR

Zn85 Indoor High Voltage Vcb

● Structural characteristics

ZN85 Indoor high voltage vcb and operating mechanism are arranged up and down, which effectively reduces the circuit breaker's Depth. The three-phase arc extinguish chamber and that connecte charged body are separated by three independent epoxy resin insulating cylinder, To form a composite insulation structure, ZN85 Indoor high voltage vcb meets the requirements of air distance and climbing distance under normal operating conditions. And effectively reduce its own volume. Vacuum interrupter and dynamic and static of main electric circuit The conductive connection is installed in the insulating cylinder, so that the phase spacing is only 300 mm. Electrical connection of main circuit All adopt fixed connection, which has high reliability. The insulating cylinder is installed in the circuit breaker frame. Above the shelf. ZN85 Indoor high voltage vcb mechanism has simple design, better output curve and performance. The characteristics and requirements of 40.5kV vacuum circuit breakers are applicable. The overall layout is reasonable, beautiful and concise. Small size, flexible operation, long service life, convenient maintenance and maintenance-free mechanism. The circuit breaker is suitable for frequent operation, various occasions and places with harsh operating conditions.

 

● Technical parameters of The ZN85 Indoor high voltage vcb

Number

Item

Unit

Data

1

Rated voltage

KV

40.5

2

Rated current

A

2000

3

Rated frequency

HZ

50

4

Rated short-circuit break current

 

 

KA

31.5

5

Rated short-circuit closing current

80

6

4s rated short circuit withstand current (peak)

31.5

7

Rated withstand current(peak)

80

8

1 Min working withstand voltage

KV

95

9

Lighting impulse withstand voltage(peak)

185

10

Rated operating sequence

 

Time

O-0.3s-CO-180s-CO

11

Rated short-circuit breaking current breaking times

20

12

Mechanical life

10000

13

Breaking time

ms

≤80

14

Single capacitor bank breaking current

A

630

15

Interruption current of back-to-back capacitor bank

A

400

16

Rated operating voltage

V

-110/~110,-220/~220

 

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