Hello, Friends. In this post, we are going to discuss the most important questions that asked in the interview.
Q.1 Which motor is used in the Indian train?
Ans: Both AC and DC are used in different variants of trains. Earlier, the only DC motor was used, But now AC induction motor is used in Indian railways.
Q.2 Overload and Overcurrent difference?
Ans: Overload– all electrical appliances are designed to handle a limited amount of load; when we connect more Load than this, it becomes an overload condition.
Overcurrent– a situation in which the current flow in a device is more than its current capacity. That is called over current.
Q.3 What is Solar Panel?
Ans: Solar Panel- When many small solar cells are combined to form one big panel, then that panel is called a solar panel.
Q.4 What is solar cell?
Ans: A solar cell is such a device that if sunlight falls on it. Then this solar cell takes the energy from sunlight and converts that energy into electrical energy.
Q.4 What is a Buchholz relay?
Ans: Buchholz relay is a safety device, it works to provide safety to the transformer.
Big transformers in which oil is used for cooling are called oil-cooled transformers. In them, we find a cylindrical thing between the pipes connecting the conservator to the main tank, this cylindrical object is called the Buchholz relay.
Q.5 Which relay is inside the Buchholz relay?
Ans: There are two relays inside Buchholz relay. First relay give signal to circuit breaker at the time of fault. Second relay gives information of fault with an alarm circuit.
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