ABB DSPAD/02/649 Stabilized Differential Relay

Description

• Type: Stabilized Differential Relay
• Manufacturer: ABB
• Application: Protection of power transformers and generators

Features

• High-Speed Tripping: Ensures rapid fault clearance, enhancing the reliability and security of power systems.
• Integrated Protection: Provides comprehensive protection for winding short-circuits, interturn faults, earth faults, and short circuits.
• Multi-Functional: Combines a three-phase differential relay, three-phase overcurrent relay, and a multi-configurable earth-fault relay in one device.
• Stabilized Against Unwanted Operations: Prevents undesired relay operations during transformer inrush and overexcitation conditions.
• Wide CT Ratio Correction Range: Allows precise correction through digital settings, accommodating various CT ratios.
• Heavy-Duty Output Relays: Equipped with four output relays for circuit breaker tripping and five output relays for signaling purposes.
• Programmable Control Inputs: Features five programmable external control inputs for integrating alarm and trip signals from auxiliary devices.