What is electrical condition monitoring?

Condition monitoring (CM) of the electrical equipment is nothing but observing different kinds of parameters of transformers, transmission lines, relays, circuit breakers, etc. to minimize unwanted breakdowns and equipment failure.

How do you monitor a transformer?

The monitoring and control of the transformer is done by using ARM7 processor, RF transmission for wireless communication and sensors which check the level of gas, aging of oil, overload and maintain temperature by regular observation.

What are the testing of power transformer?

Power transformer tests:

• Measurement of Winding Insulation Resistance.
• Winding Resistance Test.
• Voltage Ratio Test.
• Polarity Test.
• No-Load Losses Test.
• Load Losses (Short Circuit) Test.
• Vector Group Test.
• Capacitance and tan δ Test.

What is the purpose of testing a transformer?

Transformer testing is done for maintaining the specifications and performance of an electrical power transformer. The transformer is the main part of an electrical generation/distribution system so if it is not working properly then it will affect the whole generation/distribution system.

What are types of condition monitoring?

Among the types of condition monitoring, there are four major types that, when used together, can build a surprisingly complete picture of a machine’s health:

• Vibration analysis and diagnostics.
• Lubricant analysis.
• Acoustic emission.
• Infrared thermology.

What are the advantages of condition monitoring?

Overall benefits of condition based monitoring includes:

• Increased uptime/reduced downtime.
• Reduction in/elimination of unplanned failures.
• Decreased maintenance costs.
• Increased asset life.
• Reduction in collateral asset damages.
• Greater ease in prioritization and planning of work orders.

How many types of transformer testing are there?

Transformer manufacturers perform two main types of transformer testing – type test of transformer and routine test of transformer. Some transformer tests are also carried out at the consumer site before commissioning and also periodically in regular and emergency basis throughout its service life.

What are three types of condition monitoring?

Understanding Different Types of Condition Monitoring

• Vibration analysis and diagnostics. The frequency of vibration in rotating parts can indicate how well that component is operating.
• Lubricant analysis.
• Acoustic emission.
• Infrared thermology.

What are the uses of condition monitoring?

The use of condition monitoring allows maintenance to be scheduled, or other actions to be taken to prevent consequential damages and avoid its consequences. Condition monitoring has a unique benefit in that conditions that would shorten normal lifespan can be addressed before they develop into a major failure.

What are the disadvantages of condition monitoring?

The disadvantages of Condition Monitoring are as follows.

• Short-term investment is required.
• The equipment for condition monitoring is expensive.
• The sensors of condition monitoring may not survive depending upon the environment.
• It exhibits unpredictable maintenance periods.