SAEL Industries Limited Manager – Electrical Interview Questions and Answers

Q1. Smps Working diskas
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Q2. Smps Work this Ac power supply covated to Dc power supply.
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Q1. Technical questions
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Q2. AC motor speed control method
Ans. 
AC motor speed can be controlled using methods like voltage control, frequency control, and pole changing.
• Voltage control: Adjusting the voltage supplied to the motor to change its speed.

• Frequency control: Changing the frequency of the AC power supplied to the motor to control its speed.

• Pole changing: Altering the number of poles in the motor to adjust its speed.

• Using variable frequency drives (VFDs) for precise speed
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Q3. Starter connections
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Q4. Circuit breaker
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Q5. Power plant and distribution
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Q1. Induction motor
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Q2. Fire tube turbine
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Q1. 1.Dc system ( pv area) Testing & commissioning and operations maintenance. 2. Inverter operations & maintenance. 3.IDT Testing, operation & maintenance. 4.Bettery bank Maintenance. 5.Reporting purpose. 6.S...read more
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Q2. Module Rating, Testing, commissioning , cleaning as per sop accordingly
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Q1. Technical stuff
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Q1. Technical stuff related to current job
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Q1. Background and about your self
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Q2. Why looking for change
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Q1. Like what is your work experience. Are you willing to climb twice in a day .
Ans. According to your experience needs to give answers Second question- yes
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Q2. Are you willing to work if require to support near by site .
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Q1. As per your experience as previous company they asked questions, but more focos on safety .
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Q2. What is LOTO , Types of LOTO
Ans. 
LOTO stands for Lockout/Tagout, a safety procedure used to ensure that dangerous machines are properly shut off and not started up again prior to the completion of maintenance or servicing work.
• LOTO involves locking the energy isolating devices with an assigned individual lock and tag to prevent the machine from being turned on.

• Types of LOTO include electrical LOTO, mechanical LOTO, and pneumatic LOTO.

• Examples of LOTO ...read more
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Q1. Previous experiences questions, like DFIG , Converter system, power factor , transformer , lighting system, Earthing system .
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Normal discussion with seniors

Q1. Salary discussion and joining details
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Q1. Types of insulator and their requirements
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Insulators are materials used to prevent the flow of electricity. They must have high resistivity, mechanical strength, and thermal stability.
• Types of insulators include porcelain, glass, polymer, and ceramic.

• Requirements for insulators include high resistivity to prevent leakage current, mechanical strength to withstand mechanical stress, and thermal stability to withstand temperature variations.

• Examples of insulators...read more
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Q2. How the wind turbine works?
Ans. 
Wind turbines convert the kinetic energy of the wind into mechanical power, which is then converted into electricity.
• Wind turns the blades of the turbine

• Blades are connected to a rotor

• Rotor spins a generator to produce electricity

• Electricity is then sent to the grid for distribution
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Q3. Types of generator, types of cb,
Ans. 
Types of generators include diesel, gas, and wind generators. Types of circuit breakers include air, oil, and vacuum circuit breakers.
• Types of generators: diesel, gas, wind

• Types of circuit breakers: air, oil, vacuum
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Q4. Diffrenece betwween isolator and cb
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Isolator is used for isolating a circuit whereas circuit breaker is used for breaking a circuit during fault conditions.
• Isolator is a mechanical switch used for isolating a circuit from the power source.

• Circuit breaker is an electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit.

• Isolators do not have any interrupting capacity, while circuit breakers can interrupt the...read more
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Q1. Explain the wind power plant
Ans. 
A wind power plant is a facility that harnesses the power of wind to generate electricity.
• Wind power plants consist of wind turbines that convert the kinetic energy of wind into electrical energy.

• The turbines are typically mounted on tall towers to capture the stronger and more consistent winds at higher altitudes.

• The blades of the turbine rotate when the wind blows, which in turn rotates a generator to produce electri...read more
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Q2. Explain the wind power plant motor
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A wind power plant motor is a device that converts wind energy into electrical energy.
• Wind power plants use turbines to capture the kinetic energy of the wind.

• The wind turns the blades of the turbine, which are connected to a generator.

• The generator converts the rotational energy into electrical energy.

• The electrical energy is then transmitted through power lines for distribution.

• Wind power plants can have different ty...read more
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Q1. Explain the wind power plant maintenance
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Wind power plant maintenance involves regular inspections, repairs, and servicing to ensure optimal performance and longevity.
• Regular inspections are conducted to identify any issues or potential problems.

• Repairs and replacements are carried out as needed to fix any faulty components.

• Servicing includes cleaning, lubricating, and adjusting various parts of the wind turbines.

• Maintenance also involves monitoring and analy...read more
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