Deyan Electric is a professional supplier with rich manufacturing experience in industrial electrical appliances, specializing in the R&D, production, sales, and service of industrial electrical appliances. Its main products include power equipment such as gas-insulated switchgear, ring main units, compact substations, and high/low-voltage switchgear.
The Indoor Vacuum Circuit Breaker with Handcart (draw-out) design for easy maintenance and testing. It provides reliable circuit protection with its vacuum interruption technology, compact structure, and flexible operation, making it ideal for power distribution systems and industrial applications.
The indoor vacuum circuit breaker with handcart is a three-phase AC 50Hz indoor switchgear with a rated voltage of 12kV. It is suitable for control and protection applications in industrial plants, power plants, substations, and electrical facilities, and is ideal for locations requiring frequent operation. Featuring an integrated operating mechanism and breaker body.The indoor vacuum circuit breaker with handcarcan be designed as a fixed installation unit or equipped with a dedicated push-in mechanism to form a draw-out unit. The indoor vacuum circuit breaker with handcar main circuit section may incorporate fully encapsulated solid-insulated poles to achieve compact size, high reliability, and maintenance-free operation. It is compatible with draw-out switchgear cabinets such as KYN28-12(GZS), while the fixed-mount version can be integrated into XGN fixed switchgear cabinets.
Product Parameter ( Specification )
Serial Number
Name
Unit
Data
1
Rated voltage
kV
12
2
Maximum operating voltage
KV
12
3
Rated current
A
630
1250
630 1250
1600 2000
2500 3150
1250 1600
2000 2500
3150 4000
4
Rated Short-Circuit Breaking Current (Rated Thermal Stability Current - RMS)
KA
20/25
31.5
40
5
Rated Short-Circuit Closing Current (Peak)
KA
50/63
80
100
6
Rated Peak Withstand Current (Rated Dynamic Stability Current - Peak)
KA
50/63
80
100
7
4S Rated Short-Circuit Withstand Current
KA
20/25
31.5
20/25
8
Rated Insulation Level
Working Voltage Withstand (Before and After Rated Breaking)/1 min Power Frequency Voltage Withstand
KV
Ground 42 (Break 48)
Withstand Voltage (Before and After Rated Breaking) / Peak Rated Lightning Impulse Withstand Voltage
Ground 75 (Break 85)
9
Rated Thermal Stability Time
S
4
10
Rated Operating Sequence
Separate -0.3S - Combined -180S - Combined
11
Mechanical life
Second
20000
12
Rated Short-Circuit Breaking Current Number of Breaks
Second
50
13
Operating Mechanism Rated Closing Voltage (DC)
v
AC、DC 110,220
14
Operating Mechanism Rated Opening Voltage (DC)
v
AC、DC 110,220
15
Contact gap
mm
11±1
16
Overstroke (contact spring compression length)
mm
3.5±0.5
17
Three-phase closing and opening bounce time
ms
≤2
18
Contact bounce time during closing
ms
≤2
19
Average tripping speed
m/s
0.9~1.2
Average closing speed
m/s
0.5-~0.8
20
Opening time
At the maximum operating voltage
S
≤0.05
21
At minimum operating voltage
≤0.08
22
Closing time
S
0.1
23
Resistance of each phase main circuit
μΩ
630 ≤50
1250 ≤ 45
24
Allowable cumulative wear thickness for moving and stationary contacts
mm
3
Product Feature And Application
Handcart (Draw-out) Design
Advanced Vacuum Interruption
Enhanced Safety with Interlocks
Spring Operating Mechanism
Versatile Application
Application Range
◇ Compact secondary substations
◇ Small industrial and mining enterprises
◇ Wind power plants
◇ Hotels, shopping malls, office buildings, commercial centers, etc.
◇ C- Load switch unit
◇ D-Direct cable connection unit
◇ De- Direct cable connection unit with grounding switch
For inquiries about High Voltage Switchgear, Medium Voltage Switchgear, Low Voltage Switchgear or price list, please leave your email to us and we will be in touch within 24 hours.
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