UPTF equipment
UPTF equipment is intended for contact-free smooth starting of asynchronous motors with a phase-wound rotor. The basic application of UPTF is the starting of high-voltage asynchronous motors with a power of 100-1600 kW for:
- transportation belt conveyers in mining plants of different profiles
- fuel transportation belt conveyers in heating power stations
- where the transportation of granular products over remote distances is required
- slow start of different lifting devices
- slow start of mills and crushers
- slow start of pumps with asynchronous motors with a phase rotor
Main advantages:
- safe working of the conveyer belt upon conveyer start without pro-slipping and pushing by changing the momentum of the motor with a certain task from zero to the starting momentum and maintaining a certain dynamic momentum during the starting process
- work at a lowered speed, needed for the first-time loading of the conveyer and for control procedures during use
- work with one or several motors of any producer
- high reliability in all climatic situations
- safe starting of the conveyer after an emergency stop, avoiding rollback of the conveyer belt in the case of an inclined conveyer
- lower influence on network harmonics in comparison with other methods of motor speed regulation
| UPTF-250 | UPTF-630 | UPTF-800 | UPTF-1000 | UPTF-1600 | |
| Motor rated power, kW | 250 | 630 | 800 | 1000 | 1600 |
| Rotor maximum voltage, V | 700 | 860 | 950 | 980 | 1600 |
| Rotor maximum current, А | 350 | 500 | 600 | 900 | 1500 |
| Starting time untill rated speed, sec | 10-60 | 10-60 | 10-60 | 10-60 | 10-60 |
| Lower-speed operation, 10-35% of that rated, with motor power % of that rated | 30 | 25 | 20 | 20 | 15 |
| Ambient temperature admissible range, С | -40 to +40 | ||||
| Cooling | Air, natural | ||||
| Overall dimensions, mm: | |||||
| Length | 600 | 1400 | 1400 | 2400 | 4400…6000 |
| Depth | 800 | 900 | 900 | 900 | 900 |
| Height | 2200 | 2200 | 2200 | 2200 | 2200 |
| Weight, kg | 400 | 560 | 640 | 1000 | 1750…2450 |
Portfolio
Development and delivery of a feed pump for a coal-fired power unit with a capacity of 210 MW.
Design and development of smooth start reversive pump-generators equipment with 15,75 kV voltage and 24 MW power.
Frequency converter for asynchronous motors with 6 kV voltage and 6 MW power.
Asynchronous squirrel-cage motors speed regulators with 6 kV voltage and 6 МW power.
