- 1
Application
This device can be mainly used in the mining well which is filled with methane, dust and other explosive gas. It can be used in the 127V circuit and be used as the lighting device and the power of illumination and signal load in the power supply circuit .
Model implication
Features
With 32-bit microcontroller core, industrial-grade peripheral chips, scientific algorithms, reliable and sensitive protection and high measurement accuracy, the device has a very high anti-interference ability.
The device adopts standardized modular hardware design, high-precision A/D converter, a dedicated power supply module and the crystal timing. In the user interface, large screen LCD display, automatic backlight and menu-driven instructions are available. The operator can query and modify online. The device will record and transmit the event. The self test function and secondary password protection function are also available.
The device can be controlled by the ways of near control and far control.
The device is equipped with RS485 or CAN communication port, which connects to the telcom cable.
The device has enough protection functions, such as short protection, leakage protection, over voltage protection, under voltage protection and breakage latch protection.
Main technical parameters
|
Type
|
Main transformer |
Rated capacity (KVA) |
Insulation grade |
Input cable O.D. |
Weight (kg) |
Outline dimension H×W×D (mm) |
|||
|
Connection mode |
Rated voltage (V) |
Rated current |
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 class |
12~30 8~19 |
8~12 |
272 |
770×700×555 |
|
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 |
770×700×555 |
|||
|
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 |
770×700×555 |
|||
|
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 |
770×700×555 |
|||
|
Y/△or△/△ |
660/133 |
8.75/43.41 |
|||||||
|
Y/△ |
1140/133 |
5.06/43.41 |
|||||||
Control and protection parameter
Refer to the following table for parameters of lighting circuit control and lighting circuit protection
|
Rated capacity (KVA) |
Rated voltage （V） |
Short protection |
Leakage protection |
|||
|
Protection distance (4mm²)m |
Action time (s) |
Action value (KΩ) |
Danger indicating value for cable insulation (KΩ) |
Single phase leakage latch value (KΩ) |
||
|
4.0 |
1140(660)/133 660(380)/133 |
450 |
＜0.25 |
2±20％ |
10+2 |
2±20％ |
|
6.0 |
||||||
|
8.0 |
||||||
|
10.0 |
||||||
Refer to the following table for parameters of signal circuit control and signal circuit protection
|
Rated capacity (KVA) |
Rated voltage (V) |
Short protection |
|
|
Protection distance (4mm2)m |
Action time(S) |
||
|
4.0 |
1140(660)/133 660(380)/133 |
1400 |
＜0.4 |
|
6.0 |
|||
|
8.0 |
|||
|
10.0 |
|||