Mine explosion-proof and
intrinsically safe AC variable frequency speed control device for coal mine and
other surrounding media containing methane and coal dust mixture of explosive
gas environment is used for mine shaft three-phase motor speed adjustment and
has short circuit protection , Leakage protection, insulation protection and
other comprehensive protection of explosion-proof electrical equipment used in
the exchange of 50Hz voltage, 1140V / (660V) total current to 380A and below
the line.
Conditions of Use:
1. Altitude does not exceed 2000m.
2. Environmental medium temperature
does not exceed +40 ℃, not less than -20 ℃.
3. The relative humidity of air is
not more than 95% (+25 ℃).
4. No strong bumpy vibration.
5. Containing explosive methane, coal
dust in the air, but not enough to corrode the metal and destroy the insulation
of gas and steam.
Features:
1. Combined unitized housing for
electric locomotives.
2. Flameproof housings for internal
components ensure safe use in all areas downhole.
3. Power control system uses vacuum
heat pipe cooling, with good cooling performance.
4. Intrinsic safety control and
information feedback system.
5. Applicable to all types of mining
motor.
|
Type number |
Rated voltage |
Control motor power |
Controllable motor speed |
