Tata Power
CREDITSAFE TECHNOLOGY Interview Questions and Answers
Q1. What is the resistance value of tripping & closing coil of vcb?
The resistance value of tripping & closing coil of VCB varies depending on the manufacturer and model.
The resistance value can be found in the manufacturer's manual or datasheet.
It is important to use the correct resistance value to ensure proper functioning of the VCB.
The resistance value may also vary depending on the voltage rating of the VCB.
For example, the ABB VD4 VCB has a tripping coil resistance of 50-60 ohms and a closing coil resistance of 20-30 ohms.
Q2. 1.What is the contact resistance of VCB.?
The contact resistance of VCB is typically very low.
VCB stands for Vacuum Circuit Breaker.
The contact resistance is the resistance between the contacts of the breaker when it is closed.
The contact resistance of VCB is typically in the range of micro-ohms.
Low contact resistance is important for efficient operation of the breaker.
High contact resistance can cause overheating and damage to the breaker.
The contact resistance can be affected by factors such as the material of the ...read more
Q3. The minimum hight at which the safety belt should be used
The minimum height at which the safety belt should be used is determined by the height of the individual and the specific safety regulations in place.
The minimum height requirement for safety belt usage varies depending on the country and jurisdiction.
In the United States, for example, the minimum height for safety belt usage is typically around 4 feet 9 inches (145 cm).
Other factors such as age, weight, and type of vehicle may also influence the minimum height requirement.
It...read more
Q4. How outages for line / switchyard is taken, wrt load dispatch centre
Outages for line/switchyard are managed by the load dispatch centre through coordination and communication.
Outages are scheduled in advance to minimize impact on the grid and consumers.
Load dispatch centre coordinates with the concerned authorities to plan and execute the outage.
Alternative arrangements are made to ensure continuity of power supply during the outage.
Regular updates are provided to stakeholders regarding the status of the outage and expected restoration time.
Q5. What is importance of having double bus system
Double bus system is important for ensuring redundancy and reliability in power distribution.
Enhances reliability by providing backup in case of failure in one bus
Allows for maintenance work to be carried out on one bus while the other remains operational
Reduces the risk of power outages and downtime
Commonly used in critical infrastructure such as hospitals, data centers, and industrial facilities
Q6. Explain Angular Project Achitecture
Angular project architecture involves organizing code into modules, components, services, and directives for a scalable and maintainable application.
Angular applications are organized into modules, which group related components, directives, and services together.
Components are the building blocks of Angular applications, representing different parts of the UI.
Services are used for reusable business logic and data manipulation.
Directives allow you to extend HTML with custom b...read more
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