Distance Protection Relay
Product Code : LSK-EPS-10533
Distance Protection Relay (SKU LSK-EPS-10533) is an educational-format relay for studying the protection and monitoring of overhead transmission lines, with full-scheme phase and ground distance protection over up to five zones. It is used with the Protection Relay Test Set in electrical engineering protection laboratories. Science Lab Supplies provides it from Ambala, India to universities, polytechnics, tender contractors and distributors.
Specifications
Like the other relays in this range, it is housed in a robust enclosure with a carrying handle, rests on the test set desk and connects through a multi-core cable and safety leads. Beyond distance zones it offers directional overcurrent, earth fault and thermal functions.
| Parameter | Value |
|---|---|
| SKU | LSK-EPS-10533 |
| Distance protection | Full-scheme phase and ground, up to five zones |
| Overcurrent and earth fault | Directional/non-directional phase overcurrent, earth fault and negative sequence overcurrent |
| Other functions | Thermal overload, broken conductor, blocking of any one protection element, fault and disturbance records |
| Programming | Keypad and display, or software supplied with the test set on a suitable computer |
| Housing | Robust enclosure with carrying handle |
| Supplied by | Science Lab Supplies, Ambala, India |
Applications and Experiments for the Distance Protection Relay
Students set zone reaches on the relay, apply line faults through the test set and check which zone operates. This turns impedance-based protection, usually taught only as R–X diagrams, into a measured practical for transmission line courses.
- B.E./B.Tech power system protection: zone settings and reach.
- Phase and ground faults on a simulated overhead line.
- Directional overcurrent back-up protection.
- Blocking one element and observing its effect on tripping.
The fault circuits draw on mains power; make connections with the supply off and keep tests under qualified supervision.
Standard Scope of Supply
The Distance Protection Relay is delivered as a single relay module in its carrying enclosure, ready to set up from the front keypad. The Protection Relay Test Set (with its software) and a computer are separate purchases, and the quotation lists the cables and any optional accessories.
Packing, MOQ and Lead Time
Ask for one relay to extend an existing test set, or quote a full protection bench. Every quotation gives packing, delivery time and price for the quantity named, and other engineering lab equipment in India, such as line simulators, can be priced on the same document.
With an Importer-Exporter Code as a registered exporter, Science Lab Supplies can ship to buyers in Vietnam, Malaysia, Peru, Egypt, Iraq and Nigeria. The contact page and enquiry cart both reach our sales desk, and the lab tender page explains tender supply.
Frequently Asked Questions
How many distance zones can be set?
The relay provides full-scheme phase and ground distance protection with up to five zones, enough to show primary and back-up zone coordination along a line.
Which relay should a college start with?
Many courses begin with the Overcurrent And Earth Fault Relay and then move to distance protection, since distance schemes build on overcurrent and directional ideas. Both mount on the same test set.
Who supplies the Distance Protection Relay?
Science Lab Supplies supplies it from Ambala, India. Laboratories can order the relay alone or with the test set and companion relays on a single quotation.
Can two relays run together?
Yes. Most tests need one relay, but the test set has enough connections for two relay modules at the same time.
Related Line Protection Equipment
A distance relay is only as instructive as the line and faults it sees. These four items supply that context: the test set drives the relay, the simulator models real line lengths, and the breaker trainer and feeder relay show how other protection devices respond to the same faults.
- Protection Relay Test Set — lets students compare relay characteristics.
- Transmission Line Simulator — six-section three-phase line in per-unit values.
- Circuit Breaker Trainer — fuses and three breaker types under adjustable fault current.
- Feeder Management Relay — overcurrent, voltage and earth fault protection for feeders.
Browse the full Electrical Power System range or all engineering laboratory equipment.
Last updated: 25 September 2026
