Products

• 25 mm – Magnetic switch type with Aluminium Body

Oil Surge Relay is a critical protection component used in transformer systems, and this advanced Oil Surge Relay OSR-1M-SFT-2NO is engineered to safeguard the OLTC from internal faults. A high-performance Oil Surge Relay continuously monitors oil flow and sudden pressure surges inside the OLTC tank, ensuring early detection of abnormalities before they lead to failure. Designed with industry expertise, this Oil Surge Relay responds instantly to oil pressure fluctuations, helping maintain transformer reliability and operational safety.

FAQs OF Oil Surge Relay 

1. What is an Oil Surge Relay in a transformer?

An Oil Surge Relay is a protective device that detects abnormal oil flow or sudden pressure surges in the OLTC compartment of a transformer, helping prevent internal damage.

2. Why is an Oil Surge Relay important for OLTC transformers?

It provides early fault detection, prevents transformer failure, and ensures safety by interrupting operation when unusual oil movement indicates a potential internal issue.

3. How does the OSR-1M-SFT-2NO Oil Surge Relay work?

It uses a magnetic switch mechanism to sense the rate of oil movement. When oil flow exceeds safe limits, the relay activates its contacts to isolate the transformer or trigger an alarm.

4. Is the aluminium body suitable for long-term use?

Yes. The aluminium construction makes it corrosion-resistant, heat-resistant, and ideal for harsh transformer environments.

5. What types of transformers use this Oil Surge Relay?

It is commonly used in power transformers, distribution transformers, and industrial OLTC-equipped systems.

6. Does the relay require maintenance?

The device is low-maintenance but should be inspected periodically during routine transformer servicing.