Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways

Product Details
Customization: Available
Breaking Capacity: High Voltage Circuit Breakers
Operation: Manual Type or Electric Type
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  • Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
  • Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
  • Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
  • Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
  • Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
  • Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
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  • Overview
  • Detailed Photos
  • Product Parameters
  • Company Profile
  • Fair
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  • Certifications
  • Packaging & Shipping
Overview

Basic Info.

Model NO.
VCB-F
Arc-extinguishing Medium
Vacuum
Installation
Fixed or Insert
Structure
ACB
Poles Number
3
Type
Circuit Breaker
Function
Conventional Circuit Breaker
Certification
ISO9001-2000
Non-Standard
Customizable
OEM
Yes
Technical Capacity
Old Fashioned Circuit Breaker to Figure Custom
Selectable Voltage
40.5kv
Transport Package
According to The Packaging Requirements of The Imp
Specification
1250A-31.5KA/4000A-50KA
Trademark
VKJ
Origin
China
HS Code
8535210000
Production Capacity
6000 Pieces/Year

Product Description

Shanghai Kaiji Power Equipment Co., Ltd,which is located at #777 Yuegong Road, Jinshan Industrial Zone, Shanghai, is in the core area of "Yangtze River Delta". The unique location advantage builds good development platform and make manufacturing capacity and quality assurance capabilities to reach the international leading level.
Shanghai Kaiji specializes in manufacturing different kind of indoor high voltage vacuum circuit breakers, the main products are VKJ series with 7.2 KV - 24 KV - 35 KV and special circuit breaker lift vehicles.
Based on quality for growth, technology for development and service for market, our company always insists on such business philosophy. Shanghai Kaiji is willing to work with friends from home and abroad to develop together and win-win cooperation.
Detailed Photos
Indoor High Voltage AC Vacuum Circuit Breaker for Mines and RailwaysIndoor High Voltage AC Vacuum Circuit Breaker for Mines and RailwaysIndoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
 
Product Parameters

Technical data

 
    1. Main technical parameters of Model VKJvacuum breaker 
Table 1
 
No. Parameter designation Unit Data
1 Rated voltage kV 40.5
2 Rated insulation level Power frequency withstand voltage at 1 min kV 95
Rated lightning impulse withstand voltage kV 98
3 Rated current A 630 1000 1250 1600 2000 2500 3150
4 Rated short circuit breaking current (effective value)
Rated short time withstand current (effective value)
kA 20 20 20        
25 25 25 25      
  31.5 31.5 31.5 31.5    
    40 40 40 40 40
      50 50 50 50
5
 
Rated short circuit closing current (peak value)
Rated peak withstand current  (peak value)
kA 50 50 50        
63 63 63 63      
  80 80 80 80    
    100 100 100 100 100
      125 125 125 125
6 Rated short circuit breaking current breaking times Times 30.50x
7 Rated short circuit duration s 1
8 Rated operating sequence   O-0.3s-CO-180s-CO
9 Mechanical life Times 30000
10 Rated single capacitor bank breaking current A 630
11 Rated back to back capacitor bank breaking current A 400

Note:
  1. When rated short circuit breaking current 31.5kA, rated short circuit breaking times is 50 times.
When rated short circuit breaking current >31.5kA, rated short circuit breaking times is 30 times.
  1. When rated short circuit breaking current is 50kA, rated operating sequence is: O-180s-CO.180s. CO.
 
    1. Mechanical characteristic parameters after breaker is assembled and adjusted
Table 2
 
No. Parameter designation Unit Data
1 Contact opening distance mm 20±1
2 Contact travel mm 5±2
3 Three phase switch on/off asynchroneity   2
4 Bounce time of switch-on contact ms ≤3(for 40kA and above ≤3) a
5 Center distance between phases mm 300±1.5 (440+1.5)  a
6 Rated short circuit breaking current kA 20 25 31.5 40  
7 Contact pressure of switch-on contact N 2000±200 2400±200 3100±200 4500±200  
8 Average switch-off speed m/s 0.9~1.3
9 Average switch-on speed m/s 0.5~0.9
10 Breaking time ms 30±10
11 Closing time ms 50±10
12 Main circuit resistance in each phase of breaker b µΩ 40
13 Main circuit resistance in each phase of breaker and cart c µΩ ≤55
14 Bounce range of contact switch-off mm ≤1
15 Allowable abrasion thickness of dynamic and static contact mm ≤3

Note:
  1. What in the parentheses is for product with rated current of 2500A and above.
  2. Main circuit resistance of breaker is resistance between upper and lower outgoing lines.
  3. Main circuit resistance of breaker cart is the resistance between upper and lower moving contacts.
 
    1. See Figure 3 and Table 3 for parameters of draw-out type breaker unit with binding type primary contact:
Table 3
 
Rated voltage (kV) 40.5 40.5 40.5 40.5 40.5 40.5
Rated current A 630/1000 1250 1600 2000 2500/3150 4000
Moving contact arm closing circle D1 28 42 48/72 72 102 102
Static contact arm closing circle D2 35 49 55/79 79 109 109
Diameter of max. excircle D3 74 87 94/128 128 158 158
Number of moving contact stylus 24 30 36/48 48 64 82


Figure 3 Dimensions Related to Fitting of Moving and Static Contacts

 
    1. See Figure 4 for schematic diagram of secondary wiring of vacuum breaker:

Actuator of this breaker could be driven by AC or DC.
 
    1. Technical data of energy storage motor

This product adopts permanent-magnet type single direction DC motor with special speed reducer; change gear in the reducer is enclosed in a case filled with lubricating grease, output speed is 10r/min. Torque 25N.m. See the following Table 4 for technical parameters of motor.

Table 4

 
Model Rated voltage (V) Rated output power (W) Normal working voltage range (V) Energy storage time at rated voltage (s)
HDZ-70-30B DC110
DC220
80 85%-110% rated voltage 15
Note: Allow AC/DC power supply for operation
 
    1. See Figure 5 for technical data of switching on/off electromagnet
  Switch on/off electromagnet
Rated operating voltage (V) DC220 DC110
Coil power (W) 244 366
Rated current (A) 1.11 3.33
Current resistance (Ω) 198 33
Operating voltage range Switch off 65%-120% rated voltage switch on 85%-110% rated voltage
Company Profile
Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
Fair

Indoor High Voltage AC Vacuum Circuit Breaker for Mines and RailwaysIndoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
Customer

Indoor High Voltage AC Vacuum Circuit Breaker for Mines and RailwaysIndoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
Certifications

Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways
Packaging & Shipping

Indoor High Voltage AC Vacuum Circuit Breaker for Mines and Railways

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