ABB DSPAD/02/647 | Stabilized Differential Relay for Transformers
Manufacturer: ABB
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Part Number: DSPAD/02/647
Condition：New with Original Package
Product Type: Stabilized Differential Relay for Transformers
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Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Overview
The ABB DSPAD/02/647 is a high-performance stabilized differential relay engineered for power transformers and generator-transformers. It combines three-phase differential, overcurrent, and earth-fault protection into a single compact module, delivering reliable and precise fault detection.
This relay detects winding short-circuits, interturn faults, earth faults, interwinding short-circuits, and pole short circuits. Its stabilization mechanism prevents unwanted tripping during external faults or through-load conditions, improving system reliability and selectivity.
The DSPAD/02/647 supports modern communication protocols, including IEC 61850 and Modbus RTU, allowing seamless integration into digital substation environments. Its robust construction ensures dependable operation in demanding industrial and power applications.
Technical Specifications
| Specification | Details |
|---|---|
| Model Number | DSPAD/02/647 |
| Product Type | Stabilized Differential Relay |
| Protection Functions | Three-phase differential, overcurrent, earth-fault |
| Fault Detection | Winding short-circuits, interturn faults, earth faults, interwinding short-circuits, pole short circuits |
| Stabilization | Against external faults and through-load conditions |
| Operating Voltage | Up to 35 kV |
| Current Rating | Up to 5 A |
| Communication Protocols | IEC 61850, Modbus RTU |
| Application | Power transformers, generator-transformers |
| Origin | Sweden |
| Condition | Brand new |
FAQ
Q1: What types of faults does the DSPAD/02/647 detect?
A1: The DSPAD/02/647 detects winding short-circuits, interturn faults, earth faults, interwinding faults, and pole short circuits.
Q2: Which communication protocols does it support?
A2: It supports IEC 61850 and Modbus RTU for seamless digital integration.
Q3: What voltage and current ratings does the relay handle?
A3: Operating voltage is up to 35 kV, and current rating is up to 5 A.
Q4: Can this relay prevent false tripping?
A4: Yes, its stabilization feature avoids unwanted tripping during external faults or through-load conditions.
Q5: Where is the DSPAD/02/647 used?
A5: It is ideal for power transformers, generator-transformers, and industrial substations.