Log in
x
or
x
Register
x

or
194

TD 12kv 1250A 25KA (JUC613) vacuum interrupter for VCB

 4#Rd Hubei Province,China, Yichang City 443201, Zhijiang City, Hubei, China - Map Directions

Old price:
70.00 USD
27 August 2018 - 27 August 2019 27 August 2018 27 August 2019

Main technical parameters

Rated voltage: 12 KV

Rated current: 1250A

Rated power frequency withstand voltage: 42 KV

Rated lightning impulse withstand voltage: 75 KV

Rated short circuit breaking current: 25KA

Rated short circuit making current(peak value): 63KA

Breaking operations under rated short circuit breaking current: 30 times

Rated short time withstand current: 25KA

Rated withstand current(peak value): 63KA

Rated duration of short circuit: 4S

Mechanical life: 20,000 times

Closing force due to bellows and atmosphere: 120±50N

Force required to hold contacts opening at full stroke: 190±50N

Circuit resistance at lowest rated contacts force: ≤20μΩ

Storage life: 20 years

Limiting abrasion of contacts: 3 mm

 

Mechanical requiements of vacuum circuit breaker

Clearance between opening contacts: 11±1mm

Average opening speed(Contacts closing position~75% contacts opening distance): 1.1±0.2 m/s

Average closing speed(30% contacts opening distance~contacts closing position): 0.6±0.2 m/s

Rated contacts pressure: 2000±200N

Contacts bouncing duration at closing operation: ≤2ms

Contacts re-bouncing clearance at opening operation: ≤2mm

Synchronism of three phases: ≤1ms

 

Items

Value

Rated voltage

12KV

Rated current

1250A

Rated frequency

50Hz

Rated power frequency withstand voltage

42kV

Rated lightning impulse withstand voltage

75kV

Rated short circuit breaking current

25KA

Rated short circuit making current(peak value)

63KA

Breaking operations under rated short circuit breaking current

30 times

Rated short time withstand current

25kA

Rated withstand current(peak value)

63kA

Rated duration of short circuit

4s

Mechanical life

20000 times

Closing force due to bellows and atmosphere

120±50N

Force required to hold contacts opening at full stroke

190±50N

Circuit resistance at lowest rated contacts force

≤20μΩ

Storage life

20 years

Limiting abrasion of contacts

3mm

 

 

 

Mechanical requiements of vacuum circuit breaker

Items

Value

Clearance between opening contacts

11±1mm

Average opening speed(Contacts closing position~75% contacts opening distance)

1.1±0.2 m/s

Average closing speed(30% contacts opening distance~contacts closing position)

0.6±0.2 m/s

Rated contacts pressure

2000±200N

Contacts bouncing duration at closing operation

≤2ms

Contacts re-bouncing clearance at opening operation

≤2mm

Synchronism of three phases

≤1ms

Offer Reviews

Add new review

There are no reviews at the moment

Tradezone.com

Tradezone.com has been putting suppliers and buyers together for over 65 years.  This Suppliers Directory focuses on promoting International Trade.  You are welcome to list your company and products here and we will do our best to provide great internet exposure for you.

 

Copyright © 2020 Tradezone.com. All Rights Reserved

Search