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Quick Details

  • Place of Origin: Beijing, China (Mainland)
  • Brand Name: daelim
  • Model Number: ZN85-40.5 type indoor high voltage vacuum circuit breaker
  • Type: High Voltage
  • Poles Number: 3
  • key words: ge circuit breaker

Packaging & Delivery

Packaging Details one set one case
Delivery Time within 45 days after received payment

Specifications

1.small volume, flexible operation,
2.has reliable performance, long service life,
3.ge circuit breaker

type indoor high voltage vacuum circuit breaker

Product description

  ge circuit breaker

ZN85-40.5 type indoor high voltage vacuum circuit breaker, the series three-phase ac 50 hz, rated voltage up to and including 40.5 kV indoor high-voltage power distribution equipment. And KYN61-40.5 (Z) switchgear accessories, available for industrial and mining enterprises, power plant and substation power, control and protection, can also be used for frequent operation.

 

Feature advantages

 

1, the circuit breaker adopts composite insulation structure, the three-phase arc extinguish chamber and is connected to a charged body consists of three independent of the insulation of the epoxy resin casting cylinder. Under the condition of meet the normal operation of the air clearance and creepage distance requirements, effectively reduce the volume of circuit breaker. Primary loop electrical connections are all made of fixed connection, high reliability;

 

2, operation mechanism, USES the special design of spring operating mechanism, installed in phase in the arcing chamber under the car frame, its structure is suitable for circuit breaker and decorate a form, mechanism design is simple, mechanical output characteristic and arcing chamber cooperate good, can meet the technical requirements of vacuum circuit breaker;

 

3, circuit breaker, the overall layout is reasonable, beautiful, simple, small volume, flexible operation, has reliable performance, long service life, convenient maintenance, institutions less maintenance, etc, applies to is quite harsh operating conditions of the workplace.

 

main parameters

 

 

item

unit

data

rated voltage

kV

40.5

rated current

A

1250~2000

rated frequency

Hz

50

Rated short-time power frequency withstand voltage(1min,effective value)

Phase to phase,to earth,gaps

kV

95

Auxiliary circuit and control circuit

2

Rated lightning impulse withstand voltage(peak)

kV

185

rated short circuit breaking current

kA

31.5

rated short circuit making current

kA

80

rated duration time of short circuit

s

4

rated shot time withstand current

kA

31.5

rated peak withstand current

kA

80

rated operation sequence

 

O-0.3s-CO-180s-CO

rated short circuit breaking times

Time

30

Capacitor Banks open circuit current rating

Single capacitor bank

 

A

630

Back-to-back capacitor group

400

Mechanical operations times

time

10000

Points, closing synchronism

ms

≤2

Closing bounce time

ms

≤3

The primary loop resistance

μΩ

≤48

Average opening speed

 

m/s

1.8±0.2

Average closing speed

 

m/s

0.65±0.15

 

 

 

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