SEL-700G / SEL-300G — generator protection with auto-synchronizer
SEL-700G and SEL-300G protect synchronous generators at power plants and industrial facilities. The SEL-700G has a built-in auto-synchronizer, while the SEL-300G provides full primary and backup protection to IEEE standards.
- Functions
- synchronous generator protection, auto-synchronizer (700G), 100% stator ground fault protection by 3rd harmonic (300G)
- Display
- 5-inch color touchscreen (700G, optional)
- Application
- generators at power plants and industrial facilities
Price, availability and lead time on request. We help with analogue selection, customs clearance and delivery.
Description
Stator ground fault protection in the SEL-300G covers 100% of the winding by monitoring the 3rd harmonic. The SEL-700G auto-synchronizer matches generator frequency and voltage to the network and issues the breaker closing command, so a separate synchronizer in the cabinet is not needed. A 5-inch color touchscreen is an option for the SEL-700G. Both terminals are used on generators at power plants and industrial facilities.
Technical specifications
| Functions | synchronous generator protection, auto-synchronizer (700G), 100% stator ground fault protection by 3rd harmonic (300G) |
|---|---|
| Display | 5-inch color touchscreen (700G, optional) |
| Application | generators at power plants and industrial facilities |
Request a price and lead time
SEL-700G / SEL-300G — generator protection with auto-synchronizer. We reply within one business day.
Or email sales@usk.ua or call 044 339-50-20.
Customs codes
| UKTZED (Ukraine) | 8536 49 00 90 |
|---|---|
| HS, 6 digits | 8536 49 |
| CN (EU) | 8536 49 00 |
| HTSUS (USA) | 8536 49 00 80 |
| China customs tariff | 8536 49 00 90 |
Codes are for reference: the final code is determined at declaration for the specific model.
Questions and answers
Which terminal should be chosen if an auto-synchronizer is needed?
The auto-synchronizer is built into the SEL-700G. The SEL-300G provides full primary and backup generator protection to IEEE standards.
Does the SEL-300G protect the entire stator winding against ground faults?
Yes, the protection covers 100% of the stator winding using the 3rd harmonic.
Does the SEL-700G have a touchscreen?
A 5-inch color touchscreen is supplied as an option.
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