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Differential Protection Relay
Differential Protection Relay (Product Code: SLE/EPS/08) is a desk-mounted relay module used to demonstrate the characteristics of three-phase differential protection in power system protection laboratories. Built around a Micom industrial relay in a robust enclosure with a carrying handle, it lets lecturers and students program real relay settings and test them against fault circuits. It is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India, a laboratory instruments supplier in India for engineering colleges.
Specifications
| Parameter | Detail |
|---|---|
| Purpose | Clearly shows the characteristics of three-phase differential protection |
| Relay | A Micom industrial relay forms the main part of the unit |
| Enclosure | Robust enclosure with carrying handle |
| Mounting | On the desk area of the Protection and Relay Test Set or other Power System product |
| System connection | Multi-core cable from the back of the relay to the Power System product |
| Test connections | 4 mm shrouded sockets to the test circuits |
| Programming | Keypad and display on the relay module, or Micom S1 software on a suitable computer |
| Product code | SLE/EPS/08 |
| Supplied by | Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, India |
What Is the Differential Protection Relay Used For?
Differential protection compares the current entering and leaving a protected zone, such as a transformer or generator winding, and trips when the two no longer balance. This module lets students see that principle on real hardware: fault circuits are set up on the Protection and Relay Test Set or another Power System product, and the relay’s response reveals the three-phase differential characteristic.
A typical session runs in three steps. First, mount the unit on the desk area and connect the multi-core cable from the back of the relay. Next, program the settings with the keypad and display, or from a suitable computer running Micom S1 software. Finally, link the 4 mm shrouded sockets to the test circuits and apply faults inside and outside the protected zone to compare the outcome.
What to Specify When Ordering
- The Protection and Relay Test Set or other Power System product the relay will mount on and connect to.
- Whether you plan to program it from a computer with Micom S1 software.
- Number of relay modules required.
Supplier
ScienceLab is the trading name of Jain Scientific Equipments Private Limited, based in Ambala, Haryana, India. The company supplies the Differential Protection Relay to engineering colleges, polytechnics and training institutes alongside the power systems trainers it is used with, for delivery in India and international markets.
Because the core of the unit is a Micom industrial relay, raise any questions about the relay model or the Micom S1 software when you enquire. More about the company is on the ScienceLab profile.
Related Power & Energy Systems Trainers
Other protection items used in the same relay-testing workflow:
- Distance Protection Relay — Micom-based module for phase and ground distance protection.
- Directional/Non-Directional Overcurrent Relay — overcurrent, earth fault and voltage functions.
- Overcurrent And Earth Fault Relay — a further relay for protection experiments.
- Power System Simulator Generator — generator console with relay-operated circuit-breakers.
Find more in our Power & Energy Systems Trainers category.
Frequently Asked Questions
What does the Differential Protection Relay demonstrate?
The Differential Protection Relay (SLE/EPS/08) clearly shows the characteristics of three-phase differential protection. Students program it, connect it to fault circuits on the Protection and Relay Test Set or another Power System product, and observe how the relay responds.
Which relay is inside the Differential Protection Relay unit?
A Micom industrial relay forms the main part of the Differential Protection Relay, so students work with a real industrial relay’s keypad, display and settings. The relay is housed in a robust enclosure with a carrying handle.
How is the Differential Protection Relay programmed?
The Differential Protection Relay is programmed with the keypad and display on the relay module, or with Micom S1 software on a suitable computer. The lecturer or student enters the settings needed for each test before connecting to the fault circuits.
How does the relay connect to the test equipment?
The Differential Protection Relay mounts on the desk area of the Protection and Relay Test Set or another Power System product. A multi-core cable runs from the back of the relay to that product, and 4 mm shrouded sockets link the relay to the test circuits.
Who supplies the Differential Protection Relay?
The Differential Protection Relay is supplied by Jain Scientific Equipments Pvt Ltd (ScienceLab), Ambala, Haryana, India, to colleges, institutes and dealers in India and international markets. Its core component is a Micom industrial relay.
What does a quotation request need?
To quote the Differential Protection Relay, ScienceLab needs the quantity, the Protection and Relay Test Set or Power System product it will be used with, and whether computer programming with Micom S1 software is planned. Send these through our contact page.
Request a Quote
Enquire about the Differential Protection Relay (SLE/EPS/08) on our contact page, or add it to the enquiry cart together with the trainers you plan to use it with.
Last updated: 24 September 2026
