We normally think and practice corresponding towards the change of circumstance, and grow up. We aim at the achievement of a richer mind and body plus the living for 100% Original Factory China 36kv 40.5kv High Voltage Embedded Pole for Vacuum Circuit Breaker, Since the manufacturing unit founded, we have now committed into the progress of new goods. Along with the social and economic pace, we’ll continue to carry forward the spirit of “high excellent, efficiency, innovation, integrity”, and stay with the operating principle of “credit initially, customer 1st, good quality excellent”. We’ll produce a excellent foreseeable future in hair output with our companions.
We normally think and practice corresponding towards the change of circumstance, and grow up. We aim at the achievement of a richer mind and body plus the living for 36kv Vcb, China Embedded Pole, vacuum circuit breaker parts, Our company upholds the spirit of “innovation, harmony, team work and sharing, trails, pragmatic progress”. Give us a chance and we will prove our capability. With your kind help, we believe that we can create a bright future with you together.
◆ Type description
◆ Use environment
Normal use environment
● Ambient temperature: -15~40℃, daily average temperature ≤+35℃;
● Humidity: The average value of relative humidity measured within 24 hours is ≤95%; the average value of
water vapor pressure measured within 24 hours is ≤2.2kpa; the average value of relative humidity is <90%; the average value of monthly water vapor pressure is <1.5 kpa;
● Altitude ≤1000m;
● Sunlight radiation can be ignored;
● Vibration from outside the switchgear and control equipment can be ignored;
● The surrounding air is not significantly polluted by dust, smoke, corrosive or flammable gas, steam or smoke.
◆ Structure
The main circuit of VEF-12GD series side installation type 3 working position vacuum circuit breaker is arranged longitudinally. The upper part is the disconnect switch, the middle part is the vacuum circuit breaker, and the lower part is the earth switch. The operating mechanism, the circuit breaker mechanism and the interlocking mechanism are located in the front of the switch. The switch can be installed upside down.
Safety and excellent embedded pole
High reliability, stable insulation performance, stronger structure, miniaturization, maintenance-free, more environmentally friendly, and high mechanical resistance.
Visual disconnect open contacts
Rotary disconnect switch with visible disconnect open contacts after opening.
Modular operating mechanism
The circuit breaker adopts a modular operating mechanism, which can be replaced or overhauled independently, and has good interchangeability. It can be operated manually, or can be operated by AC or DC energy storage to realize remote control.
Three-shafts step-by-step operation, reliable mechanical interlocking
The disconnect switch, circuit breaker, and earth switch are operated on a single shaft respectively, and there is a forced mechanical interlock between the 3 shafts to prevent misoperation.
Outgoing wire end with non-contact charged display sensor
No capacitance, using non-contact induction technology, safe and reliable.
The cabinet door and the earth switch are designed with a reliable interlocking structure
To ensure the safety of the operator, the adjustment-free cabinet door with cabinet door block.
◆ Main technical parameters
NO. |
Items |
Unit |
Parameters |
||
1 |
Rated voltage |
kV |
12 |
||
2 |
(1min) rated short time power frequency withstand voltage: phase-to-phase, across open contacts |
42/48 |
|||
3 |
Rated lightning impulse withstand voltage (peak):phase-to-phase, across open contacts |
75/85 |
|||
4 |
Primary circuit power frequency withstand voltage (1min) |
V |
2000 |
||
5 |
Rated frequency |
Hz |
50 |
||
6 |
Rated current |
A |
630, 1250 |
||
7 |
Rated short circuit breaking current |
kA |
20 |
25 |
31.5 |
8 |
Rated peak withstand current |
kA |
50 |
63 |
80 |
9 |
Rated short circuit making current |
kA |
50 |
63 |
80 |
10 |
4S rated short time withstand current |
KA |
20 |
25 |
31.5 |
11 |
Rated short time withstand current duration |
S |
4 |
||
12 |
Rated single/back-to-back capacitor bank breaking current |
A |
630/400 |
||
13 |
Rated capacitor bank making inrush current |
kA |
12.5(frequency ≤1000Hz) |
||
14 |
Rated short circuit current breaking number |
times |
30 |
||
15 |
Mechanical life (disconnect switch/circuit breaker/earth switch) |
3000/10000/3000 |
|||
16 |
Allowable cumulative wear thickness of moving and fixed contact |
mm |
3 |
||
17 |
Rated closing operating voltage |
V |
AC24/48/110/220, DC24/48/110/220 |
||
18 |
Rated opening operating voltage | ||||
19 |
Rated voltage of motor | ||||
20 |
Rated power of motor |
W |
70 |
||
21 |
Charging time |
S |
<15 |
||
22 |
Clearance between open contacts |
mm |
9±1 |
||
23 |
Overtravel |
3.5±1 |
|||
24 |
Contacts closing bounce time |
ms |
<2 |
||
25 |
Three phase opening and closing asynchronism |
<2 |
|||
26 |
Opening time (rated voltage) |
<40 |
|||
27 |
Closing time (rated voltage) |
<60 |
|||
28 |
Average opening speed (contacts just opened~6mm) |
m/s |
0.9-13 |
||
29 |
Average closing speed (6mm~contacts just closed) |
0.5-11 |
|||
30 |
Contacts opening rebound amplitude |
mm |
<2 |
||
31 |
Contacts closing contact pressure |
N |
2400±200( 20-25kA) 3100±200(31.5kA) |
||
32 |
Rated operating sequence |
O-03S-CO-180S-CO |
We normally think and practice corresponding towards the change of circumstance, and grow up. We aim at the achievement of a richer mind and body plus the living for 100% Original Factory China 36kv 40.5kv High Voltage Embedded Pole for Vacuum Circuit Breaker, Since the manufacturing unit founded, we have now committed into the progress of new goods. Along with the social and economic pace, we’ll continue to carry forward the spirit of “high excellent, efficiency, innovation, integrity”, and stay with the operating principle of “credit initially, customer 1st, good quality excellent”. We’ll produce a excellent foreseeable future in hair output with our companions.
100% Original Factory China Embedded Pole, Vacuum Circuit Breaker Parts, Our company upholds the spirit of “innovation, harmony, team work and sharing, trails, pragmatic progress”. Give us a chance and we will prove our capability. With your kind help, we believe that we can create a bright future with you together.