Mining Explosion proof Starter (QBZ-2× 120(80)/1140(660, 380)SF)
1. Function
This series electromagnetic starter is applicable in AC50Hz power distribution system with
Voltage of 1140V(660V, 380V) in underground coal mines with explosive and dangerous
Gas(methane) and coal dust, and it is used to make automatic switching over control to dual
Power supply and dual dis-rotatory fan, realizing power distribution of dual power supply.
Automatic switching over operation mode of master-slave dis-rotatory fan, it ensures
Uninterrupted ventilation in underground coal mine for long time, and it is the most ideal
Control equipment for dual dis-rotatory fan for underground coal mine especially for heavy
Gas time.
2. Characteristics
2.1 Master-slave dual disrotatory fan and dual power supply for power distribution,
Automatic switching over
2.2 Switching over time is adjustable
2.3 Protective functions for short circuit, loss of phase, leakage lockout, over voltage,
Overload, phase imbalance etc.
2.4 Protective function for fan and power supply lock out
|
Model |
QBZ-2×120/1140(660,380)SF |
QBZ-2×80/1140(660,380)SF |
|
Rated voltage (kV) |
1140 |
660 |
380 |
1140 |
660 |
380 |
|
Rated current (A) |
120 |
80 |
|
Max.power of controlled motor (kW) |
175,100,55 |
115,65,35 |
|
Control voltage (V) |
36 |
|
Leakage lockout value (kΩ) |
40+20% |
22+20% |
7+20% |
40+20% |
22+20% |
7+20% |
CHANGCHENG Group, mainly engaged in circuit breaker, AC contactor, starters, relays, instruments, switches, fuses low voltage products and transformer, whole set cabinet etc high voltage products. By now, our company has developed into one of the largest trans-regional, conglomerate and trans-national enterprise on scale and developing potentiality.
Our main lines now include high-low voltage appliances, complete sets, highway guardrail, electronic controlling equipment, vessel manufacture, and lighting etc, With an annual throughput value of 20 billion Yuan. Furthermore, having received the ISO9001, ISO14001, OHSMS 18001, UL, VDE, TSE, CB, CCC certificate for various product series, besides that all our products have been undertaken by People's Insurance Company of China on quality responsibility. And also our products have been approved as the well-known trademark of China, we are now achieving high sales shares in markets worldwide.
We welcome both new and existing customers to come take a look at our current line up and hope that you will choose our brand of competitively priced quality products. Please feel free to send us your inquiries and we will be happy to answer any questions you may have.
