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I applied via AmbitionBox and was interviewed in Nov 2024. There were 3 interview rounds.
My experience CNC machining, production planning and control
What is your field of expertise and what would you like to learn more about?
Tell me about yourself
K factor is a constant used in sheet metal bending to calculate the location of the bend line.
K factor determines the amount of stretching that occurs when a metal sheet is bent.
It is used in formulas to calculate the bend allowance, bend deduction, and flat pattern development.
K factor values vary depending on material type, thickness, and bending method.
For example, a K factor of 0.33 is commonly used for mild steel
The weight of an object can be found by using a scale or balance.
Use a scale or balance to measure the weight of the object.
Place the object on the scale and wait for the reading to stabilize.
The weight of the object will be displayed on the scale in units such as pounds or kilograms.
I applied via Walk-in and was interviewed in Jul 2023. There were 2 interview rounds.
UPS stands for Uninterruptible Power Supply, which is a device that provides emergency power to a load when the input power source fails.
UPS takes power from the main electrical supply and stores it in its battery
It then converts the stored power to the required voltage and frequency to supply to the load
UPS also provides protection against power surges and spikes
Example: APC Smart-UPS series
Rectifier and inverter sections are components of power electronics that convert AC to DC and DC to AC respectively.
Rectifier section converts AC to DC by using diodes
Inverter section converts DC to AC by using transistors
Rectifier section is used in power supplies, battery chargers, etc.
Inverter section is used in solar power systems, UPS, etc.
To convert 230V AC supply into 12V DC supply, a step-down transformer, rectifier, and filter capacitor are used in the circuit.
Use a step-down transformer to reduce the voltage from 230V AC to a lower voltage level.
Rectify the AC voltage using a bridge rectifier to convert it into pulsating DC.
Filter the pulsating DC using a capacitor to smoothen out the ripples and obtain a stable 12V DC output.
Ensure proper voltage r...
I applied via Walk-in and was interviewed before Oct 2023. There were 2 interview rounds.
A UPS block diagram typically consists of input power, rectifier, battery, inverter, output power, and load.
Input power from utility or generator
Rectifier converts AC to DC
Battery stores energy for backup power
Inverter converts DC to AC
Output power to connected devices
Load consumes power from UPS
MOSFET, IGBT, and SCR are all types of power semiconductor devices used for switching applications.
MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) is a voltage-controlled device with high switching speed and efficiency.
IGBT (Insulated Gate Bipolar Transistor) combines the advantages of MOSFET and bipolar transistor, suitable for high power applications.
SCR (Silicon-Controlled Rectifier) is a current-controll...
Seeking new challenges and growth opportunities in a different environment.
Desire for new challenges and opportunities for growth
Different work culture and environment
Opportunity to learn new technologies and skills
Possibility of career advancement
Seeking better work-life balance
Hitachi Hi-Rel Power Electronics interview questions for popular designations
I was interviewed before Jan 2024.
Get interview-ready with Top Hitachi Hi-Rel Power Electronics Interview Questions
I applied via campus placement at Vishwakarma Government Engineering College, Ahmedabad and was interviewed in Apr 2023. There were 2 interview rounds.
Yes, I can explain projects with circuit diagrams to visually represent the components and connections.
Use standard symbols for components like resistors, capacitors, and transistors.
Clearly label each component and connection in the circuit diagram.
Include a legend to explain the symbols used in the diagram.
Show the flow of current through the circuit.
Use software like CircuitLab or LTspice to create professional-look
I applied via Recruitment Consulltant and was interviewed in Sep 2022. There was 1 interview round.
I applied via Naukri.com and was interviewed in Jun 2022. There were 3 interview rounds.
It was taken by quality hod sir
1- He was ask me about myself?
2- Then he asked me about my previous job?
3- After that the ask me about my quality experience?( As per my resume)
4- after all this they aks me about there company,what do i know about their company?
I applied via Referral and was interviewed in Jan 2022. There were 4 interview rounds.
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Some of the top questions asked at the Hitachi Hi-Rel Power Electronics interview -
The duration of Hitachi Hi-Rel Power Electronics interview process can vary, but typically it takes about less than 2 weeks to complete.
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