SLJ Static Synchronism Check Relay
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.
The Type SLJ21A is a static synchronism check relay which is designed to permit closing of a breaker only if the angle between the voltages on the line and bus sides of the breaker is less than a set angle for a set period of time. Also included are two voltage measuring circuits to check line and bus voltage conditions. The relay is mounted in a size S2 drawout case.
Applications
- Bus or line synchronism check
Protection and Control
- Synchronism check operation
- Adjustable time delay
- Adjustable phase calibration range
- Instantaneous undervoltage
SLJ Static Synchronism Check Relay
Manufacturing for this product has been discontinued. As an alternative, please refer to the 3 Series relays.
The Type SLJ21A is a static synchronism check relay which is designed to permit closing of a breaker only if the angle between the voltages on the line and bus sides of the breaker is less than a set angle for a set period of time. Also included are two voltage measuring circuits to check line and bus voltage conditions. The relay is mounted in a size S2 drawout case.
Applications
- Bus or line synchronism check
Protection and Control
- Synchronism check operation
- Adjustable time delay
- Adjustable phase calibration range
- Instantaneous undervoltage
