What Is a Magnetic Oil Level Gauge: Working, Benefits & Applications

What Is a Magnetic Oil Level Gauge?

A Magnetic Oil Level Gauge is one of the most important devices for monitoring oil levels in oil-filled transformers, conservators, and other equipment. This device serves as a visual indicator of the oil level. Therefore, there is no need for any oil contact.

Correct maintenance of oil level in the transformer is also important, as transformer oil helps both in insulation and cooling of the device. If the oil level becomes too low, the insulation will be compromised, which can lead to excessive heating.

The industries that depend on uninterrupted power supply will benefit from investing in a high-quality Magnetic Oil Level Gauge in order to get reliable transformers and avoid maintenance issues.

How Does a Magnetic Oil Level Gauge Work? 

A Magnetic Oil Level Gauge operates on the basis of magnetic coupling of a float within the conservator tank and an external indicator.

The way it works is quite simple:

• Float rises and falls according to a transformer oil level.
• The float has a permanent magnet in it.
• The magnet rotates and the movement is transferred to the external pointer or dial through magnetic coupling.
• This way oil level changes cause the pointer to display the level on the dial, and there is no physical connection between the moving parts of the tank and the pointer.

Such a design rules out any risk of leakage or non-reliable operation while allowing for continuous oil level indication.

Today a lot of gauges are also equipped with alarm contacts so that operators know when the oil level is dangerously low or high, enabling them to take preventive measures before any serious problems arise.

Advantages of Magnetic Oil Level Gauge

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