Dir Non Dir Overcurrent Relay Manufacturer,Supplier and Exporter in India
Product Code : EL-EPP-11362
Quick Answer: The Directional/Non-Directional Overcurrent Relay is a relay module for investigating the protection and monitoring of generator and transformer schemes, overhead lines, underground cables and backup on high-voltage systems. It mounts on the desk area of the Protection and Relay Test Set and is programmed from its keypad and display or from a computer.
Last updated: October 2026
Key Features
- Three independent stages of directional or non-directional phase overcurrent; the first stage can use any of 12 IDMT curves, the other two a direct time characteristic
- Directional or non-directional earth fault and negative phase sequence overcurrent protection
- Thermal overload, undervoltage, overvoltage and undercurrent functions, with selectable blocking
- Creates fault and disturbance records
- Programmed from the keypad and display, or with software on a suitable computer
- Enclosure with carrying handle; connects to the test set by a multi-core cable and safety leads
Technical Specifications
| Specification | Value |
|---|---|
| Phase overcurrent | Three independent stages, directional or non-directional |
| First stage | Any of 12 IDMT curves |
| Second and third stages | Direct time characteristic |
| Other functions | Earth fault, thermal overload, under/overvoltage, undercurrent, negative phase sequence |
| Programming | Keypad and display, or computer software |
| Connection | Multi-core cable and safety leads; CTs to the experimental circuit |
About This Product
Lecturers or students set up fault circuits on the Protection and Relay Test Set, program the relay for the test and connect it to see how it responds. Feeding it through current transformers shows how transformer ratio, connection and rating affect protective relays. The relay is also an optional ancillary for selected Power Systems products.
Frequently Asked Questions
How is the Directional/Non-Directional Overcurrent Relay programmed?
With the keypad and display on the relay module, or with the software on a suitable computer.
What does the overcurrent relay connect to?
It mounts on the desk area of the Protection and Relay Test Set and connects by a multi-core cable and safety leads; the experimental circuit feeds it through current transformers with a ratio to suit its inputs.
Related: Electrical Power Products, Protection Relay Test Set, Earth Fault Overcurrent Relay and Feeder Management Relay.
For a quotation on the Dir Non Dir Overcurrent Relay, contact Educational Instrument.
