ZJZ2 Mining Explosion Proof Intrinsically Safe Illumination Signal Comprehensive Protection Device

ZJZ2 Mining Explosion Proof Intrinsically Safe Illumination Signal Comprehensive Protection Device

Use
This device is used in coal mine and around places where are filled with explosive gas mixture, such as methane, coal dust and so on. For using to control the power of illumination and signal load in the power supply circuit of 127V.

 

 

 

Meaning of type

Technical descriptions
1.With 32 bit micro-controller core, industrial-grade peripheral chips, scientific algorithms, reliable and sensitive protection and high measurement precision, the device has very high anti-interference ability.
2.The device adopts standardized modular hardware design, high-precision A/D converter, a dedicated power supply module and the crystal timing. On the user’s interface, large screen LCD display, automatic backlight and menu-driven instructions are available. The operator can check and modify online. The device will record and transmit the data. The self-test function and secondary password protection function are also available.
3.Can be controlled by the ways of near control and remote control.
4.The device is equipped with RS485 or CAN communication port, which connects to the communication cable.
5.Has enough protection functions of short protection, leakage protection, over voltage protection, under voltage protection and breakage latch protection.

Technical data

Type

Main transformer

Rated capacity (kVA)

Insulation grade

External diameter of cable(Φmm)

Weight (kg)

Dimension W×H×D

(mm)

Connection mode

Rated voltage (V)

Rated current (A)

Main circuit

Control circuit

ZJZ2-4.0/1140(660)M ZJZ2-4.0/660(380)M

△/△

380/133

6.08/17.36

4.0

B

12~30

8~19

8~12

272

700×770×555

Y/△ or △/△

660/133

3.5/17.36

Y/△

1140/133

2.02/17.36

ZJZ2-6.0/1140(660)M ZJZ2-6.0/660(380)M

△/△

380/133

9.12/26.05

6.0

285

700×770×555

Y/△ or △/△

660/133

5.25/26.05

Y/△

1140/133

3.04/26.05

ZJZ2-8.0/1140(660)M ZJZ2-8.0/660(380)M

△/△

380/133

12.16/34.73

8.0

296

700×770×555

Y/△ or △/△

660/133

7.0/34.73

Y/△

1140/133

4.05/34.73

ZJZ2-10.0/1140(660)M ZJZ2-10.0/660(380)M

△/△

380/133

15.19/43.41

10.0

307

700×770×555

Y/△ or △/△

660/133

8.75/43.41

Y/△

1140/133

5.06/43.41

Control and protection parameters

Refer to the following table for parameters of lighting circuit control and lighting circuit protection

Rated capacitance(kVA)

Rated voltage

(V)

Short-circuit protection

Leakage protection

Effective distance for protection(4mm2)m

Action time

(s)

Action value

(kΩ)

Dangerous value for indicating cable insulation

(kΩ)

Single phase leakage value

(kΩ)

4.0

1140(660)/133、660(380)/133

450

<0.25

2±20%

10+2

4±20%

6.0

8.0

10.0

Refer to the following table for parameters of signal circuit control and signal circuit protection

Rated capacitance(kVA)

Rated voltage

(V)

Short-circuit protection

Effective distance for protection(4mm2)m

Action time

(s)

4.0

1140(660)/133、660(380)/133

1400

<0.4

6.0

8.0

10.0

 

 

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