ZBT Series Mining Explosion Proof VFD
ZBT series of mining explosion proof VFD is suitable for the place with explosive gas and dust.
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Introduction
ZBT series of mining explosion-proof VFD is suitable for the work place with explosive gas and dust. The product has multiple voltage levels such as 380V/660V,1140V, which meets the power range of 60-1250kW 3PH AC motor Dual-Quadrant and Four-Quadrant high-performance speed regulation requirements.
This series of products has accumulated more than 10 years of research results of frequency conversion technology and over 30 years of industry experience, it is high tech product specially developed for the mining industry which has the heavy load requirements, large power, poor use conditions etc.
Application scope：
►Metallic and non-metallic mines,etc.
● Shaft/ Inclined shaft hoist
● Belt conveyor
● Scraper conveyor
● Endless Rope Winch electric control
● Man-riding system
● Emulsion pumping station
● Fan
● Pump
►Applicable motor type
● Three-phase asynchronous motor
● Permanent-magnet synchronous motor
►Working conditions：
1.Altitude less than 1000m (above sea level need to reduce capacity use);
2.Ambient temperature (-10~40)℃;
3.Ambient relative humidity is less than 95% (25°℃);
4.Mines with explosive gases (methane) and coal dust;
5.No strong vibration or shock;
6.No corrosive gases which could damage metals and insulating materials;
7.No water droplets and infiltrating;
8.Pollution Grade: Level 3.
►Qualification certifications (Partial certifications)：
►Table 1 Basic Parameters of Mining Explosion Proof VFD
|
Item |
Parameters |
|
Voltage |
3AC 380V,660V,1140V±10% |
|
Power |
60-1250kW |
|
Power frequency |
50Hz ±5% |
|
Control mode |
V/F open loop vector,close loop vector |
|
Start torque |
150%-200%Te |
|
Overload capacity |
150%le/60s,200%le/immediate |
|
Output frequency |
0-300Hz |
|
Output voltage |
0-380V/660V/1140V |
|
Cooling method |
Hot pipe+forced air cooling |
|
Protection grade |
IP54 |
|
Structure |
Fast opendoor,modularized |
►Product characteristics
1. Large torque:
Low speed with large torque,smooth start,small mechanical impact.
2. Low loss:
Low-frequency feedback control mode on the rectification side, the whole machine generates less heat and less loss.
3. Low Harmonics:
Special filter design, low harmonic content, less interference.
4. High Reliability:
Large margin,long service life design,stable and reliable operation.
5. High Security:
Perfect protection function，zero speed with full torque output, redundant safety protection.
6. Fasy to maintain:
Quick-door,modularized structure,small size,compact structure,and easy to install, use, and maintain.
►Table 2 Specification of Mining Explosion Proof VFD
|
Vol.grade |
Power |
Dual quadrants |
Four quadrants |
Dimension W*H*D |
Notes |
|
660 |
60～90 |
1BP |
1DK+1BP |
DK:717*919*530 |
1.Cabinet note: DK is filter reactor cabinet. BP is Frequency conversion cabinet include rectifier and inverter inside ZL is rectifier cabinet. NB is inverter cabinet. LB is filter cabinet. 2.The cabinet of same power specification is with same cabinet dimension,all cabinets have fast open door structure. |
|
110~250 |
DK:890*1150*691 |
||||
|
315~630 |
DK:1190*1401*790 |
||||
|
710～800 |
1ZL+1NB |
1DK+1ZL+1NB |
DK:1190*1401*790 |
||
|
1140 |
110~250 |
1BP+1LB |
1BP+1LB |
DK:1190*1401*790 ZL/NB:1190*1442*1348 |
|
|
315~400 |
1DK+1BP+1LB |
||||
|
500～630 |
|||||
|
710~1250 |
1ZL+1NB+1LB |
1DK+1ZL+1NB+1LB |
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HUAFEI ELECTRONIC
If you are interested in our products, please leave your email and we will contact you as soon as possible.