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A starter is an electrical device that starts and stops a motor by providing the necessary power to it. The starter circuit is the electrical circuit that controls the starter.
A starter is typically composed of a contactor, overload relay, and control circuit.
The starter circuit includes components such as switches, relays, fuses, and wiring.
The starter circuit is responsible for providing power to the starter and ensu...
A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
Transformers are used to increase or decrease the voltage in electrical power transmission and distribution systems.
They consist of two or more coils of wire, known as windings, that are wound around a core made of magnetic material.
The primary winding receives electrical energy from the...
A circuit breaker is an electrical switch that automatically interrupts the flow of current in a circuit.
Circuit breakers are used to protect electrical circuits from overloads, short circuits, and faults.
They are designed to open and close the circuit under normal and abnormal conditions.
Common types of circuit breakers include thermal, magnetic, and thermal-magnetic circuit breakers.
Thermal circuit breakers use a bim...
A generator is a device that converts mechanical energy into electrical energy.
Generators work on the principle of electromagnetic induction.
They consist of a rotor and a stator, with the rotor rotating inside the stator.
The rotation of the rotor creates a magnetic field, which induces an electrical current in the stator windings.
The electrical output of a generator can be AC or DC, depending on the design.
Examples of ...
MCB stands for Miniature Circuit Breaker. It is an electrical switch that automatically trips when the current exceeds its rating.
MCB is a type of circuit breaker that is commonly used in residential and commercial buildings.
It is designed to protect electrical circuits from damage caused by overloading or short circuits.
The working principle of MCB is based on the thermal and magnetic properties of the materials used ...
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posted on 10 Dec 2017
A generator is a device that converts mechanical energy into electrical energy.
Generators are commonly used to provide backup power during electrical outages.
They work on the principle of electromagnetic induction.
Generators can be powered by various sources such as gasoline, diesel, natural gas, or renewable energy.
They are used in various applications including residential, commercial, and industrial sectors.
Examples...
To manage overloads, ensure proper circuit design, use protective devices, monitor load levels, and implement load shedding.
Design circuits with appropriate capacity to handle expected loads.
Install protective devices like circuit breakers and fuses to prevent overloads.
Regularly monitor load levels using ammeters or power monitoring systems.
Implement load shedding techniques to prioritize critical loads during high de...
UPS stands for Uninterruptible Power Supply.
UPS is a device that provides emergency power to electrical equipment when the main power source fails.
It ensures that critical systems remain operational during power outages or fluctuations.
UPS units typically include a battery, an inverter, and a charger.
They are commonly used in data centers, hospitals, and other facilities where continuous power supply is crucial.
UPS can...
To connect a battery in a UPS, follow these steps:
Identify the positive and negative terminals of the battery
Connect the positive terminal of the battery to the positive terminal of the UPS
Connect the negative terminal of the battery to the negative terminal of the UPS
Ensure the connections are secure and tight
Verify the battery voltage and capacity compatibility with the UPS
Consider using appropriate cables and connec
The battery voltage during charging time depends on the charging method and the type of battery.
The battery voltage can vary depending on the charging method used.
For example, in a constant voltage charging method, the battery voltage remains constant during charging.
In a constant current charging method, the battery voltage gradually increases as the battery charges.
The battery voltage also depends on the type of batt...
The battery voltage decreases during discharge.
Battery voltage decreases as the battery discharges.
The rate of voltage decrease depends on the battery's capacity and load.
For example, a fully charged 12V battery may drop to 11V after discharging for a certain period.
Battery voltage can be measured using a voltmeter.
A rectifier is an electrical device that converts alternating current (AC) to direct current (DC).
Rectifiers are commonly used in power supplies to convert AC voltage to DC voltage.
They are made up of diodes, which allow current to flow in only one direction.
Rectifiers can be half-wave or full-wave, depending on the number of diodes used.
Examples of rectifiers include bridge rectifiers, vacuum tube rectifiers, and soli
Capacitors in a capacitor bank are connected in parallel to increase the overall capacitance.
Capacitors in a capacitor bank are connected in parallel.
The positive terminals of all the capacitors are connected together, and the negative terminals are connected together.
This parallel connection increases the overall capacitance of the bank.
For example, if three capacitors with capacitances of 10μF, 20μF, and 30μF are con...
In a power failure situation, it is important to have a plan in place to manage the situation effectively.
Ensure backup power sources are available, such as generators or uninterruptible power supplies (UPS)
Implement a power outage response plan that includes procedures for safely shutting down equipment and systems
Regularly test backup power systems to ensure they are in working order
Have emergency lighting and commun...
The appropriate fire extinguisher to use in an electrical fire is a Class C fire extinguisher.
Class C fire extinguishers are specifically designed to extinguish fires involving electrical equipment.
They contain non-conductive extinguishing agents, such as carbon dioxide or dry chemical powder, to safely put out the fire without conducting electricity.
It is important to never use water or foam-based extinguishers on ele...
A digital multimeter (DMM) is commonly used for earth testing.
A digital multimeter (DMM) is a versatile tool that can measure resistance, voltage, and current.
For earth testing, the DMM is used to measure the resistance between the earth electrode and the grounding system.
The DMM should be set to the resistance (ohms) mode and connected to the earth electrode and grounding system.
The measured resistance value helps det...
The earth ohm resistance refers to the resistance of the earth or ground in an electrical circuit.
Earth ohm resistance is a measure of how easily current can flow through the earth.
It is important to have a low earth ohm resistance to ensure proper grounding and safety in electrical systems.
The earth ohm resistance can vary depending on factors such as soil composition, moisture content, and temperature.
Typically, a go...
posted on 1 Jul 2024
I applied via Campus Placement and was interviewed in Jan 2024. There was 1 interview round.
Implemented a preventive maintenance program that reduced downtime by 20%
Developed and implemented a preventive maintenance program
Reduced downtime by 20%
Received recognition from management for the successful implementation
Experienced maintenance technician with a background in electrical and mechanical systems.
10+ years of experience in troubleshooting and repairing industrial equipment
Skilled in reading technical manuals and blueprints
Proficient in using hand and power tools
Strong knowledge of HVAC systems and electrical wiring
Certified in safety procedures and OSHA regulations
posted on 14 Jan 2023
I applied via Recruitment Consulltant and was interviewed in Dec 2022. There were 2 interview rounds.
posted on 28 May 2023
I applied via Referral and was interviewed before May 2022. There were 2 interview rounds.
AHU stands for Air Handling Unit.
AHU is a device used to regulate and circulate air as part of a heating, ventilation, and air conditioning (HVAC) system.
It typically consists of a blower, heating or cooling elements, filters, dampers, and sound attenuators.
AHUs are commonly found in commercial and industrial buildings to maintain indoor air quality and comfort.
Examples of AHU manufacturers include Trane, Carrier, and
Air Handling Unit
AHU stands for Air Handling Unit
AHUs are used to regulate and circulate air as part of HVAC systems
They typically consist of a blower, heating or cooling elements, filters, and dampers
AHUs are commonly found in commercial and industrial buildings
posted on 10 Oct 2024
I applied via Referral and was interviewed in Sep 2024. There was 1 interview round.
Transformer vector group is a method used to represent the phase shift between the primary and secondary windings of a transformer.
Transformer vector group indicates the relationship between the primary and secondary winding phases.
It helps in determining the connection and phase shift of the transformer windings.
Common vector groups include Yy0, Yd1, Dyn11, etc.
Vector group is important for parallel operation of trans
VBD test is conducted in transformers to ensure insulation integrity and detect any potential faults.
VBD test helps in identifying any weak spots in the insulation of the transformer
It helps in preventing breakdowns and ensuring the safety and reliability of the transformer
By conducting VBD test, any potential faults can be detected early and necessary maintenance can be carried out
It is a standard procedure in transfo
I appeared for an interview in Aug 2023.
I applied via Walk-in and was interviewed in Jul 2023. There were 3 interview rounds.
posted on 26 Feb 2023
I applied via Recruitment Consulltant and was interviewed in Jan 2023. There were 2 interview rounds.
ACB stands for Air Circuit Breaker, which is a type of circuit breaker used to protect electrical circuits from overloads and short circuits.
ACB is commonly used in low voltage power distribution systems
It operates by automatically cutting off the power supply when a fault is detected
ACBs are more reliable and require less maintenance compared to other types of circuit breakers
Examples of ACB manufacturers include Schn
Contractors are individuals or companies hired to perform specific tasks or projects for a client or organization.
Contractors are not employees of the client or organization, but rather work independently or as part of their own company.
They are typically hired for a specific period of time or project, and are paid based on the terms of their contract.
Examples of contractors include construction workers, freelance writ...
A relay is an electrically operated switch that opens or closes circuits electromechanically.
Relays are used to control high voltage circuits with low voltage signals.
They consist of a coil, an armature, and a set of contacts.
When the coil is energized, the armature moves and the contacts either open or close.
Relays are commonly used in industrial control systems, automotive applications, and household appliances.
Examp...
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Technical Supervisor
52
salaries
| ₹1.8 L/yr - ₹4 L/yr |
Electrician
33
salaries
| ₹1.4 L/yr - ₹2.5 L/yr |
Electrical Technician
22
salaries
| ₹1.5 L/yr - ₹2.5 L/yr |
Technician
19
salaries
| ₹1.3 L/yr - ₹3 L/yr |
Shift Engineer
17
salaries
| ₹2.5 L/yr - ₹3.6 L/yr |
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