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Certification:ISO9001,MA,flame proof certification
Multi Functional Vacuum Insulated Switchgear Overvoltage For Mining
Description:
KJZ4-630/1140 (600) mine use flame-proof and intrinsically safe multi-functional vacuum switchgear is designed for a belt conveyor installed at a continuous miner work face. It is suitable for underground mines on a. c. 50Hz, 1140V/660V power supply system. It integrates the protections along the belt conveyor, equipment start/stop control and other functions into one system for achieving start/stop control of belt conveyor, automatic belt tensioning, and belt winding control of the belt conveyor. It provides some basic protections and start/stop control, such as, belt misalignment, lockup, coal piling up, belt slip, etc., as well as function of loud-speaking telephone. It has 4KVA lighting power supplies. It can achieve central control over a great area by incorporation of data transmission and formation of a network.
Competitive Advantage:
DSP digital signal processing, CAN bus, self-adaptive detection, network interface, Chinese (English) character LCD display and self-diagnosis of fault.
Specifications:
|
Items |
Content |
|
Basic parameter |
Rated voltage 1140/660V; Total current 630A ; Frequency : 50Hz |
|
Overall dimensions |
1800mm * 900mm * 900mm |
|
Input circuit |
1* 630A |
|
Output circuit |
4 circuits |
|
Drive unit |
400A , 160A AC vacuum contactor |
|
Isolator |
2 switches, 400A /1140V on load |
|
Control and protection systems |
Multi-DSP systems CAN field bus |
|
Function of protections |
Overload, short-circuit, leakage, phase-failure, under voltage , overvoltage |
|
Display |
320*240 Chinese (English) character LCD |
|
Content of display |
Operating state of modules; pilot ; communication status; current, voltage, power, insulation resistance value; fault class, fault point, present time and date, electric power network frequency, ambient temperature in case, etc. |
|
Setting of parameters |
keypad operated |
|
Fault alarm |
LCD and buzzer |
|
Control mode |
Pilot control, programmable control, network control |
|
Auxiliary power supply |
127V,220V 4kVA |
|
Network interface |
RS485 |
|
Fault detection |
More than 60 items of information can be inquired |
Certifications
manufacturing license / MA mine security certification / flame proof certification.
Production Facility:
Send Inquiry to This Supplier
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