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ETA ASCON Group Interview Questions and Answers

Updated 12 Dec 2024

Q1. Difference between ups power and invest ?

Ans.

UPS power is a backup power supply system that provides continuous power during outages, while invest refers to putting money into a financial venture for future gain.

  • UPS power stands for Uninterruptible Power Supply and is used to provide backup power during outages.

  • Investing involves putting money into a financial venture with the expectation of future gain.

  • UPS power is critical for maintaining power to essential equipment during power outages, while investing is a financia...read more

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Q2. Difference between circuit breaker and isolater?

Ans.

Circuit breakers protect circuits from overloads and short circuits, while isolators physically disconnect circuits for maintenance or repair.

  • Circuit breakers automatically trip when there is an overload or short circuit to protect the circuit.

  • Isolators are manually operated switches that physically disconnect a circuit for maintenance or repair.

  • Circuit breakers are designed to interrupt current flow during a fault condition, while isolators are used to isolate a circuit for ...read more

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Ans.

Power factor is a measure of how effectively electrical power is being used in a circuit.

  • Power factor is the ratio of real power (kW) to apparent power (kVA) in an electrical circuit.

  • It indicates how efficiently power is being converted into useful work.

  • A power factor of 1 means all the power is being used effectively, while a power factor less than 1 indicates inefficiency.

  • Power factor can be improved by using power factor correction devices like capacitors.

  • Low power factor ...read more

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Q4. Type of induction motor

Ans.

Types of induction motors include single-phase, three-phase, squirrel cage, and wound rotor motors.

  • Single-phase induction motors are commonly used in household appliances and small industrial applications.

  • Three-phase induction motors are more efficient and are used in larger industrial applications.

  • Squirrel cage induction motors have a simple and rugged construction, making them suitable for various applications.

  • Wound rotor induction motors allow for external resistance to be...read more

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Discover ETA ASCON Group interview dos and don'ts from real experiences
Ans.

A CT (Current Transformer) is a type of instrument transformer that is used to measure alternating electric currents.

  • CTs are used to step down high currents to a lower, more manageable level for measurement or protection purposes

  • They work based on the principle of electromagnetic induction

  • CTs are commonly used in power distribution systems to monitor and protect electrical equipment

  • They are essential for accurate metering and monitoring of current flow in electrical systems

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Ans.

A relay is an electrically operated switch that controls a high-power circuit with a low-power signal.

  • Relays are used to control circuits by opening or closing contacts when a signal is received

  • They are commonly used in industrial applications to control motors, lights, heaters, and other high-power devices

  • Relays can be controlled by a variety of input signals, such as voltage, current, or even light

  • Examples of relays include electromagnetic relays, solid-state relays, and re...read more

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