EXPLOSION-PROOF FREQUENCY CONVERTER STATION of EPFCS type: UHL 5
SpecificationsБлок стилей "STYLE"
|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|
Powerof connected electric motors for electric driving motor cooling fans, kW
|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|
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.
- 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.
- 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.
- 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.