SMC-150 / SMC-250 — complete excitation and protection systems for synchronous motors (up to 10/15 A)
SMC-150 and SMC-250 are complete synchronous motor controllers that combine excitation and protection in one pre-assembled, configured and tested system. The SMC-150 is rated for field current up to 10 A at 55 °C and the SMC-250 for currents up to 15 A. They are used in drives of compressors, pumps, mills and fans.
- SMC-150
- DECS-150 + ES-55 (power factor) + ES-74S (mV DC), up to 10 A at 55 °C
- SMC-250
- DECS-250 + BE1-11m motor protection system, up to 15 A
- Form
- pre-assembled, configured and tested
- Functions
- excitation, limiters, protection and monitoring of the synchronous motor
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Synchronous motors drive compressors, pumps, mills, fans and refineries in the oil and gas, chemical, mining and pulp and paper industries, as well as in water supply. They also compensate reactive power. The SMC-150 and SMC-250 controllers combine excitation control and protection of such a motor in one set. They are installed both in new installations and during the upgrade of obsolete excitation systems.
The SMC-150 consists of a DECS-150 digital excitation system, an ES-55 power factor relay and an ES-74S DC millivolt signal relay. The components are assembled, configured and tested as a single unit, so only connection is needed on site. This is a compact version for field current up to 10 A at a temperature of 55 °C.
The SMC-250 combines the DECS-250 excitation system with the BE1-11m motor protection system and is rated for field currents up to 15 A. Both units are configured in the same BESTCOMSPlus® program, which shortens commissioning time. Several mounting configurations are available for the SMC-250, and both systems have various installation options, so they are easier to fit into existing equipment. The ready-made system saves work on site. Relays do not have to be selected, connected and matched separately, because the manufacturer has already assembled and tested the set. A separate CE filter kit (9576530100) is offered for the SMC-150.
Combining excitation control and protection in one system increases efficiency and reduces downtime. Installation and cable routing time is noticeably reduced, and the system approach minimizes design time. Separate relays and a regulator for a synchronous motor are usually mounted and connected on site, whereas here the wiring between them is done in advance. Motor monitoring covers starting, synchronization and operation under load. The set of limiters is coordinated with the protection functions to keep the machine in safe modes and prevent outages.
Setup is performed in BESTCOMSPlus® with the BESTlogic™Plus graphical programmable logic, automatic PID coefficient selection and auto-tuning. The built-in offline simulator checks the logic without equipment. The manufacturer designs and produces excitation regulators, protection systems and controllers at plants in Highland, Illinois and Taylor, Texas, USA.
Technical specifications
| SMC-150 | DECS-150 + ES-55 (power factor) + ES-74S (mV DC), up to 10 A at 55 °C |
|---|---|
| SMC-250 | DECS-250 + BE1-11m motor protection system, up to 15 A |
| Form | pre-assembled, configured and tested |
| Functions | excitation, limiters, protection and monitoring of the synchronous motor |
| Software | BESTCOMSPlus® (single program for DECS-250 and BE1-11m) |
Request a price and lead time
SMC-150 / SMC-250 — complete excitation and protection systems for synchronous motors (up to 10/15 A). We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Questions and answers
What is the difference between the SMC-150 and SMC-250?
The SMC-150 is built on the DECS-150 with ES-55 and ES-74S relays and is rated for field current up to 10 A at 55 °C. The SMC-250 combines the DECS-250 with the BE1-11m protection system and works with currents up to 15 A.
Which program is used to configure the SMC-250?
Both devices, the DECS-250 and BE1-11m, are configured in the single BESTCOMSPlus® program. This shortens commissioning time.
Where are the SMC-150 and SMC-250 systems used?
In drives of compressors, pumps, mills, fans and refineries in the oil and gas, chemical, mining and pulp and paper industries, and in water supply. They are installed both in new installations and during upgrades.
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