Description
GE 12SBD11B1A
Technical Specifications
- Part Number: 12SBD11B1A
- Manufacturer: General Electric
- Series: SBD Static Differential Relays
- Product Type: Static Bus Differential Relay
- Phase: Single-phase
- Speed: High-speed operation
- Operating Voltage: Selectable 48, 125, or 250 VDC via voltage selecting link
- Case Type: S-2 drawout case
- Auxiliary CTs: Not required
- Output Isolation: Telephone relay
- Target Seal-In: Provided
Key Features
- High impedance voltage measuring circuit for sensitive fault detection
- Overcurrent supervision for secure operation
- Static circuitry for very short operating times
- Output isolation via telephone relay
- Target seal-in unit for operation indication
- Voltage selecting link for 48, 125, or 250 VDC operation
- S-2 drawout case for easy maintenance and testing
- No auxiliary CTs required
Application Scenarios Bus differential protection schemes, shunt reactor differential protection, substation protection systems, power distribution network protection, industrial power system protection
Performance Parameters
- Operating Voltage: 48/125/250 VDC selectable
- Case: S-2 drawout
- Auxiliary CTs: Not required
- Output: Telephone relay with target seal-in
Material Composition High-reliability static electronic components housed in a robust S-2 drawout case. The static circuitry eliminates mechanical wear associated with electromechanical relays. Components are selected for reliable operation in power system environments.
