QJZ series(6-12circuits)
Mine explosion-proof and intrinsically safe intelligent multi-circuits vacuum el
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QJZ series(6-12circuits) Mine explosion-proof and intrinsically safe intelligent multi-circuits vacuum el
QJZ series(6-12circuits) Mine explosion-proof and intrinsically safe intelligent multi-circuits vacuum el
product introduction
Product Details

1. Function

It is ideal for mines with explosive gases (Methane) and coals, and it is used in AC50Hz,1140(660)V power supply circuit, to control start, stop, reverse rotation and doubleswitchingof 6-12 circuits 3-phase AC asynchronous inductive motors or 3-6 circuits ACdouble-winding and double-speed motors. It also can protect motors and their powersupply circuits. Therefore, when it is integrated in K J2000 mine electric power automaticcontrol and comprehensive measurement and monitor system to realize automatic controlon power supply equipments in mining area. The starter has all English LCD touch screendisplay that has highly stable performance and is highly reliable for perfect man-machineconversation function.

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3. Characteristics

  1. All English LCD touch screen display;

  2. Pull-down menu setting;

  3. Standard RS 485/232 communication interface is attached;

  4. Various protective functions for over-current, short-circuit, undervoltage, phase loss,current leakage, over-voltage and 3-phase imbalance etc;

  5. Real-time display of 3-phase current, system voltage, operating status of circuit, on-linestatus of circuit and fault types etc;

  6. Function of faults searching and faults recording;

  7. It is attached in KJ2000 mine electric power automatic control and comprehensivemeasurement and monitor system to realize telemetry, telecommunication, remotecontrol and remote regulation.

4. Technical Parameter

  1. Rated voltage: 1140(660)V

  2. Rated frequency: 50HZ

  3. Number of circuits: 6-12branches

  4. Contactor capacity: 400A

  5. Combination mode:a. The six circuits can be combined randomly.b. The last two circuits can be combined as standby high-speed circuit and low-speedcircuit for double speed switching control to realize double-speed control on fourcircuits and other two circuits as standbyc. Control mode: Various control modes such as single-motor and single-speed, multimotorand single-speed, single-motor and double-speed, double-motor and doublespeed,low-speed standby and high-speed standby etc.

  6. Display mode: Touch screen display

  7. Others: 127V lighting power supply

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