EXPLOSION-PROOF FREQUENCY CONVERTER STATION of EPFCS type: UHL 5
EPFCS
-
Explosion-proof frequency-converter station
XXX
/
Nominal capacity of the station, KW
0,69
-
Rated voltage, V
UHLN
-
Climatic option according to GOST 15150-69
Specifications
Блок стилей "STYLE"
| № | Parameter | Meaning | |
|---|---|---|---|
| 1 | Rated voltage of main circuits, V | 660 | |
| 2 | Rated current, A | 204, 403, 583 | |
| 3 | Supply frequency, Hz | 50 | |
| 4 | Nominal station capacity, KVA | 160, 320, 500 | |
| 5 | Power of connected electric motor for conveyor driving head, kW | 80..500 | |
| 6 | Torque control adjustment of electric motor, % | 0..100 | |
| 7 | Maximum developed motor shaft torque, % | 150 | |
| 8 | Adjustment spin-rate control of electric motors, % | 10..100 | |
| 9 |
Powerof connected electric motors for electric driving motor cooling fans, kW |
4 | |
| 10 |
|
1 | |
| 11 | Powerof connected additional equipment or lighting voltage 127/220 V, kW | 1 | |
| 12 | Cooling method of frequency converters and rectifier | Liquid | |
| 13 | Explosion protection type | PB Ex d [ia op is] IX | |
| 14 | Protection level of jacket according to GOST 1515-69 | IP 54 | |
| 15 | Weight, kg, no more than | 2800 | |
| 16 | Overall dimensions, mm, not more (length, width, depth) | 3200х785х1430 |
Complectation
The EPFCS UHLS5device is designed for stepless variable electric regulation of speed and torque of a single-motor drive and supply of voltageto all auxiliary devices of the station in gas and/or dust hazardous underground mine workings.
The device is made with spark-safe remote control circuits, it has explosion-proof design and protection marking PB Exdfialia I. The shell structure provides the adequate ingress IP54 protection according to GOST 14254-96.
The station is designed to operate in networks with isolated neutral.
It provides:
- Stepless variable electric regulation of speed and torque;
- operational local and remote control of electrical drive;
- absence of sharpjerks and shocks;
- mechanicaland electrical locking;
- control of the auxiliary engines of brake cooling circuit, motor drives and other auxiliary equipment.
Electric motor protection:
- data transfer via the RS-485 interface, Modbus protocol;
- connection to fiber-optic communication line;
- logging of the emergency events.
Operating conditions:
- ambient air temperature +1...+35°C;
- relative air humidity is up to 100% at temperature +35°C;
- absence of sharp jerks and shocks;
- dust condition of the ambient air is not exceeding 1000 mg/m3;
- working position in the spaceis horizontal, the deviation from working position up to 15 degrees in any direction is allowed.
Reliability indicators:
- average time between failures - min 8000 h;
- established resource beforefirst major overhaul - min 65000 h;
- average total servicelife - min 15 years;
- mean time to recovery - no more than 2 hours.
