Product Introduction Of KBZ Coal Mine Explosion-proof Vacuum Switch
KBZ Coal Mine Explosion-proof Vacuum Switch is used in coal mines for three-phase isolated neutral power supply system with AC 50Hz, rated voltage 1140V(660V) and rated current to 250A, 350A, It can be used as master switch or sub-switch of power distribution system or used to control infrequency high-capacity motor.
The protection system, adopting advanced DSP microprocessors and high-capacity new chip for two-chip working, equipped with high-precision data processing and advanced protesting algorithms has high precision of protection and fast response.
It can complete a number of protection functions such as overload, short circuit (including phase-sensitive protection and current amplitude protection), leakage atresia, leakage protection, selective leakage protection, under voltage, three-phase imbalance, phase breaking, temperature protection, gas protection, wind power atresia, power measurement etc. Besides, it is possible to customize to the live side-load instructions, communication network, power-off atresia etc.
1. Liquid crystal display
2. Communications network functions
3. three-tier selective leakage protection
4. Electrical degrees measurement
5. Fault memory and query
6. Wind power and gas power atresia protection
7. Functions opening and closing
8. Parameters fine- turning and correction
9. Testing functions for site analog
10. Clock display
11. Current, voltage, fault parameters, real-time display
12. Leakage atresia
13. Long-range short-circuit protection
14. Overload and short-circuit protection
Main Parameter Of KBZ Coal Mine Explosion-proof Vacuum Switch
|
Type/ Specification
|
Rated Voltage (V)
|
Rated Current (A)
|
Max Analysis Capability(KA)
(conΦ=0.35)
|
Electrical Life(times)
|
Mechanical Life (times)
|
Overall Size
L×W×H
|
Weight (kg)
|
|
1140V
|
660V
|
|
KBZ-500/ 1140(660)
|
1140
|
500
|
9
|
12.5
|
3000
|
15000
|
950×583×982
|
500
|
|
KBZ-630/ 1140
|
660
|
600
|
12.5
|
15
|
3000
|
15000
|
|
|
KBZ-200/ 1140(660)
|
1140
|
200
|
4.5
|
7.5
|
3000
|
15000
|
791×531×836
|
320
|
|
KBZ-400/ 1140
|
660
|
400
|
7.5
|
9
|
3000
|
15000
|
|
|
KBZ9-200/ 1140(660)
|
1140
|
200
|
4.5
|
7.5
|
3000
|
15000
|
605×493×826
|
160
|
|
KBZ9-400/1140
|
660
|
400
|
7.5
|
9
|
3000
|
15000
|
|
Figure Photos Of KBZ Coal Mine Explosion-proof Vacuum Switch
