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QJZ Intrinsic-Safety Vacuum Starter
QJZ Series Mining Explosion Proof and Intrinsic-Safety Vacuum Electromagnetic Starter with Several Circuits
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Application

This serial of starter can be used under the well which contains methane,dust and other explosive gas, it may properly work under the power flow of 50Hz, rated voltage 3300V total flow is 1600A to work as a switch; when the over-loading,short circuit, over pressure,under pressure occur the power will be cut automatically and the error signal will be shown, before the valve is closed the electricity leaking will be tested, all voltage data will be displayed,under pressure,over loading, phase losing,short circuit and power leaking protection function. Have a solid control on the single unit, both speed of the single unit, double speed of two units, and the order of the phase can be changed while the starter is stopped. It is able to offer protection to the mining machine, conveyor,engine, oil pump,cooling machine and the tighten machine to realize the automatic controlling of the working face of the mining area.  

 

Features

Protection and control system adopt advanced PLC, high precision data processing and advanced protection arithmetics, high protection precision, quick feedback speed. Have leakage closedown, overload, short-circuit, loss of phase, undervoltage and overvoltage protection function, also have advantages such as high intelligentize grade, stable performance, various control ways, reliable action etc.

Adopt all Chinese demonstrating displayer, can indicate working state, parameters and fault type of switch, also have friendly customer interface, favorable man-machine dialog function, to greatly improve efficiency of judging fault and removing fault.

Indicating system voltage, switch on-off state, three phases current of each loop on switch in real time.

All analog signals can be treated to digital signal, have strong anti-jamming capacity, simple cable connection, bulk information quantum, reliable control etc. characteristics.

Can close and remote control and duplicate speed control.

Have completed self-check, self-diagnoses function, can easy to check protection and control system normal or not, and communication function with epigyny.

It has the electrical source of 127V.

The cable can be input or output quickly.

Have RS485 or CAN communication port of intrinsic safety.

 

Main technical parameters 

Type spec.

Rated voltage

(V)

General current

(A)   

Isolation switch

Qty

Single circuit current(A)

Outline dimension

W×D×H(mm)

Auxilary circuit

 
 

QJZ-800/3300-2

3300

800

1

400

2544×1320×1092

127V,

1.5kVA

 

QJZ-800/3300-4

 

QJZ-1600/3300-6

1600

2

3475×1320×1092

127V,

1.5kVA

 

QJZ-1600/3300-8