QJZ2 Mining Explosion Proof Intrinsically Safe Vacuum Electromagnetic Starter

QJZ2 Mining Explosion Proof Intrinsically Safe Vacuum Electromagnetic Starter

Use
The starter is used for starting/stopping the explosion proof three-phase asynchronous motor which is in the three phase neutral point ungrounded power supply system of AC50Hz, voltage is 1140V ,current is 400A , in coal mine or places where are filled with explosive gas such as methane, coal dust and so on. There are two kinds of control mode: remote control and close control, and the starter can exchange phase when the motor stops.

 

Meaning of type

Technical descriptions
1.Modularized design , rational layout, simple structure, easy for operation and maintenance.
2.The advanced, large-capacity and new type microprocessor (or PLC) has high protection precision and fast response speed, has various protection functions such as leakage latch, under-voltage, over-voltage, three-phase imbalance, over load, short-circuit, wind power latch, gas protection, etc.
3.Malfunction recording function is available.
4.Hardware and software self-test function is available; Malfunction information will be displayed.
5.The system will display three-phase working current value and phase line voltage value, meanwhile, menu, setting parameter value, fault parameter value and test results will be displayed after user pressing the related key.
6.The protector can communicate with host computer of monitor system through RS485 or CAN communication interface to realize remote switch on/off, parameters revising, switch state inspection and check the analog value.

Technical data

Type

Rated current (A)

Rated voltage (V)

Max.power of control motor (kW)

External diameter of cable(Φmm)

Dimension  W×H×D

(mm)

Weight (kg)

380V

660V

1140V

Main circuit

Control circuit

QJZ6-30

660(380)

30

15

25

12~40

8~19

470×593×345

75

QJZ6-60

660(380)

60

30

50

QJZ6-30

1140(660)

30

25

45

19~51

8~19

180

QJZ6-60

1140(660)

60

50

90

QJZ6-80

1140(660)/660(380)

80

40

65

120

485×610×345

QJZ6-120

120

60

100

180

QJZ6-200

200

100

170

300

585×722×470

QJZ2-200

200

100

170

250

28~63

9~23

718×814×520

225

QJZ2-315

315

160

250

380

QJZ2-400

400

200

340

500