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Certification:ISO9001,MA,flame proof certification
Mine Intelligent Vacuum Insulated Switchgear With Leakage Protection
Description:
Intelligent switchgear systems have evolved to provide the most effective means of ensuring plant efficiency and availability.
KJZ-1500/1140Z flame-proof and intrinsically safe type intelligent vacuum switchgear is suitable for use in underground mines containing methane mixture gas and prone to dust explosion. On power supply line of 50Hz and1140V it controls start/stop, sequential control or dual speed switching of equipment, such as, shearer, AFC, stage loader, crusher, emulsion pump, spray pump, etc, and provides protection of electric motors and power supply lines. The switchgear is provided with auxiliary power supplies of 127V and 220V for external illumination and controlling systems.
Competitive Advantage:
Digital signal processing, CAN bus, self-adaptive detection, network interface, Chinese (English) character LCD, fault detection, rapid plug-in drive unit, incoming & outgoing cables connected by cable couplers.
Specifications:
|
Items |
Content |
|
Basic parameters |
Rated voltage 1140V; Total current 1500A; Frequency 50Hz |
|
Overall dimensions |
3450mm*1190mm*1065mm |
|
Input circuit |
4 circuits 400A |
|
Output circuit |
Up to 9 circuits; Max. working current of a single circuit 350A |
|
Drive unit |
Plug-in withdrawable chassis type 400A a.c. vacuum contactor |
|
Isolator |
400A on load |
|
Control and protection system |
Multi- DSP systems using CAN bus |
|
Protection functions |
Overload, short-circuit, leakage, phase failure, under voltage, overvoltage, back-up protections |
|
Display |
320*240 Chinese (English) character LCD |
|
Content of display |
Operating status of modules: pilot, status of communication; current, voltage, power, isolation resistance; fault class, fault point, present time and date, electric network frequency, ambient temperature in the compartment. |
|
Setting of parameters |
Keypad operated |
|
Fault alarm |
LCD and buzzer |
|
Control mode |
Pilot control, programmable control, network |
|
Auxiliary power supply |
Voltage: 127V and 220V; Capacity: 5kVA |
|
Network interface |
RS485 |
|
Fault query |
More than 60 items of information can be inquired |
Certifications
manufacturing license / MA mine security certification / flame proof certification.
Production Facility:
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