VEMoModular Sync high-voltage synchronous motor up to 50 MW, 0.69–13.8 kV
VEMoModular Sync is the synchronous version of the VEMoModular modular series of high-voltage machines rated up to 50 MW. Voltage 0.69–13.8 kV, 6–20 poles, shaft height 500–1000 mm. Drives of high-power compressors, blowers, pumps and fans.
- Type
- synchronous motor
- Power
- up to 50 MW
- Voltage
- 0.69–13.8 kV
- Frequency
- any (grid or converter)
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
The motors are intended for energy-efficient process applications that require constant speed, precise torque control and operation at a leading power factor, that is, compensation of the reactive power of the plant grid. A typical field of use is the drives of air separation plant compressors, as well as large compressors and blowers in the chemical, oil and gas industries and power generation, and high-power pumps and fans.
A synchronous machine runs strictly in synchronism with the supply frequency, so with direct supply from the grid the speed does not depend on load, while with supply from a medium-voltage frequency converter wide speed control is possible. For starting large synchronous motors the manufacturer supplies thyristor starting converters (LCI) and static excitation systems as part of VEMoDRIVE drive systems.
Main series parameters: voltage 0.69–13.8 kV, any supply frequency, 6–20 poles, speed up to 1800 rpm, shaft height 500–1000 mm. Cooling is closed-circuit, with an air-to-air (IC6xx) or air-to-water (IC8xW) heat exchanger. The housing is welded steel, degree of protection IP55 in the standard version and up to IP65 in some versions, rolling or sleeve bearings, mounting B3 and V1. For explosive atmospheres Ex e, Ex p and Ex t variants are provided.
The series features high power density, and frame sizes scale up to 1000 mm. Various cooling concepts are provided, including IC01, IC6xx and IC8xW, different numbers of poles, and flexible connection and monitoring options. The modular concept allows the motor to be integrated into different systems, both grid-fed and converter-fed. The synchronous version inherits this design while keeping the welded steel housing.
The modular design of the series (unified frame, core, bearing assemblies, heat exchangers) shortens engineering and delivery times and simplifies adapting the machine to an existing foundation. Manufacture and type tests are carried out in Dresden on test fields rated up to 6 MW, and the machines are designed to IEC/EN 60034. Synchronous motors can be supplied as part of a complete VEMoDRIVE drive system that includes the motor, converter, transformer and excitation system.
Technical specifications
| Type | synchronous motor |
|---|---|
| Power | up to 50 MW |
| Voltage | 0.69–13.8 kV |
| Frequency | any (grid or converter) |
| Number of poles | 6–20 |
| Speed | up to 1800 rpm |
| Frame size | 500–1000 mm |
| Cooling | IC6xx (air-to-air), IC8xW (air-to-water) |
| Degree of protection | IP55 |
| Explosion protection | Ex e, Ex p, Ex t |
| Housing | welded steel |
| Bearings | rolling or sleeve |
| Mounting | B3, V1 |
Request a price and lead time
VEMoModular Sync high-voltage synchronous motor up to 50 MW, 0.69–13.8 kV. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What drives is the VEMoModular Sync synchronous motor suited for?
For air separation plant compressors, large compressors and blowers in the chemical, oil and gas industries and power generation, and high-power pumps and fans. The motor can operate at a leading power factor.
What voltage, power and speed range does it cover?
Voltage 0.69–13.8 kV, power up to 50 MW, speed up to 1800 rpm, 6–20 poles. Any supply frequency, from the grid or from a frequency converter.
How are large synchronous motors of this series started?
The manufacturer supplies thyristor starting converters (LCI) and static excitation systems as part of VEMoDRIVE drive systems. The system can be ordered together with the motor, converter and transformer.
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