Wenzhou Migo Explosion-Proof Electric Co., Ltd.| Manufacturer
Wenzhou Migo Explosion-Proof Electric Co., Ltd.

China Manufacturer with main products: Miner Lamp

Home  >Products Catalog > MINER'S LAMP AND SELF -RESCUER > QJR Mining flame-proof intrinsic-safety AC vacuum soft starter

QJR Mining flame-proof intrinsic-safety AC vacuum soft starter

Supply Ability: 10,000 Piece/Pieces per Month
Shipping: 15DAYS
Payment Terms: T/T(Bank Transfer)
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Place of Origin: Zhejiang in China
Packaging Details: 1W.CASE:1PC

Specifications

QJR Mining flame-proof intrinsic-safety AC vacuum soft starter
 
Application
This device is applicable in coal mine full with explosive gas(methane) and coal dust, coal separating plant,port and harsh enviroment used,heavy-loaded,large and medium size driven devices like generator,etc. In power supply system of AC 50HZ, voltage 1140V, 660V or 380V, it can be used as soft start, current limiting start,full-voltage start,natural stop and soft stop to three-phases squirrel-cage asynchronous motor with current equal or less than 400A, and has various protection functions like phase protection,under-current and over-current protection,electronic thermal overlad protection and so on.
 
Model implication
QJR -□/□
                          
                                   
                                   Rated voltage(V)
                                   
Rated current(A)
 
                                  Mining flame-proof intrinsic-safety soft starter
 
Features
1. Use advanced power electronic components to achieve double closed loops control of current and speed, with functions of soft start, soft-stopping,start of kickcircuit,start detecting,RS232 communication and so on, the product can meet control requirements of different load objects like fan motor,water pump,rubber belt conveyor and scraper conveyor,etc.
2. The product displays voltage,current data of motor.
3. The soft starter has complete self-diagnosis function and protection function,with protection of temperature,under-voltage,over-voltage,under-current,over-current,default phase,line fault,stall,leakage,thyristor fault,etc.in course of start and stop.therefore,above protection functions make operating of soft starter become more reliable whether various interferences and malfunction signals come from inside or outside
4. Simple structure,easy toinstall and operate. It can be local controlled, as well as remote controlled by programmable logic controller(plc)or  other equipments.
 
Main technical parameters
Type
Rated current
(A)
Rated voltage
(V)
Start time
 
Start voltage
Current limiter
Power of control motor(KW)
Available cable O.D.
Outline dimensio (WxDxH)
Weight
(kg)
Main circuit 
Control circuit
 
QJR-400
 
400
1140
Continous adjustable in range of 0.3s300s
20%
100% of rated voltage
1-8 times of rated current
500
 
 
 
 
42-78
 
 
 
 
9-23
 
 
 
 
830x660x930
 
 
 
 
315
660
340
380
200
 
QJR-315
 
315
1140
380
660
250
380
160
 
QJR-200
 
200
1140
290
660
170
380
100
 
 

 

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