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I applied via Campus Placement and was interviewed before Nov 2020. There were 4 interview rounds.
A transformer is an electrical device that transfers electrical energy from one circuit to another through electromagnetic induction.
Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.
They consist of two coils of wire, known as the primary and secondary coils, which are wound around a common magnetic core.
When an AC voltage is applied to the primary coil, it creates a ...
Wiring of house power and lights circuit involves proper planning, installation, and maintenance.
Plan the circuit layout and choose appropriate wires and cables
Install circuit breakers, switches, and outlets as per safety standards
Ensure proper grounding and bonding of electrical system
Regularly inspect and maintain the wiring system to prevent hazards
Use proper color coding for wires to avoid confusion
Separate power a...
posted on 13 Feb 2025
I appeared for an interview before Feb 2024.
I applied via Campus Placement and was interviewed before Feb 2021. There were 5 interview rounds.
Basics of mathematics and physics
Basic electrics & electronics
posted on 4 Aug 2021
posted on 31 Dec 2022
I applied via Company Website and was interviewed before Dec 2021. There were 2 interview rounds.
Rectifier converts AC to DC while Inverter converts DC to AC.
Rectifier section uses diodes to convert AC to DC.
Inverter section uses transistors to convert DC to AC.
Rectifier section is used in power supplies while Inverter section is used in UPS.
Rectifier section is used in welding machines while Inverter section is used in air conditioners.
Both sections are used in electric vehicles to convert power from battery to m
Harmonics are electrical voltages or currents that are multiples of the fundamental frequency.
Harmonics can cause problems in electrical systems, such as overheating of equipment and interference with communication systems.
They are often caused by non-linear loads, such as computers, variable speed drives, and LED lighting.
Harmonic distortion can be measured using a power quality analyzer.
Mitigation techniques include ...
posted on 22 Jan 2025
I appeared for an interview before Jan 2024.
I am passionate about troubleshooting and problem-solving, and I enjoy working with cutting-edge technology.
I have a strong background in technical support and enjoy helping customers resolve issues.
I am excited about the opportunity to work with a dynamic team and contribute to the success of the company.
I am eager to learn and grow in my career, and I believe this role will provide me with the challenges and opportun
I plan to stay at Hitachi for the long term, as I am committed to growing and advancing within the company.
I am dedicated to my career at Hitachi and see a lot of potential for growth within the company
I have a strong interest in the industry and believe Hitachi is a great fit for my skills and goals
I am excited about the opportunities for advancement and development at Hitachi
posted on 29 Mar 2024
I appeared for an interview in Feb 2024.
posted on 14 Jun 2024
posted on 5 Sep 2024
I applied via Job Portal and was interviewed in Aug 2024. There were 4 interview rounds.
Assistant Engineer
34
salaries
| ₹3 L/yr - ₹4.8 L/yr |
Deputy Engineer
16
salaries
| ₹4 L/yr - ₹6.1 L/yr |
Senior Engineer
11
salaries
| ₹6.8 L/yr - ₹8.2 L/yr |
Production Engineer
11
salaries
| ₹1.9 L/yr - ₹8.5 L/yr |
Senior R&D Engineer
8
salaries
| ₹7.5 L/yr - ₹8.2 L/yr |
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