OCS Group Interview Questions, Process, and Tips for Experienced

Q1. What is about 33 kv to 220 SLD
Ans. 
33 kV to 220 SLD refers to a switchgear system for electrical distribution at medium voltage levels.
• 33 kV to 220 SLD likely refers to a switchgear system designed to handle voltages between 33 kV and 220 kV.

• SLD stands for Single Line Diagram, which is a schematic representation of the electrical distribution system.

• This switchgear system would be used for distributing electricity from a higher voltage transmission syst...read more
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Q2. What is ACB & VCB
Ans. 
ACB stands for Air Circuit Breaker and VCB stands for Vacuum Circuit Breaker.
• ACB is a type of circuit breaker that operates in the air where the arc is drawn in the air and extinguished using air.

• VCB is a type of circuit breaker that operates in a vacuum where the arc is drawn in a vacuum and extinguished using vacuum.

• ACBs are commonly used in low voltage applications while VCBs are used in medium voltage applications.

• ...read more
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Q1. Ups work maintenance
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Q2. Transformer work
Ans. 
Transformer work involves installing, maintaining, and repairing electrical transformers.
• Installing new transformers in buildings or industrial sites

• Performing routine maintenance on transformers to ensure they are functioning properly

• Repairing faulty transformers to restore functionality

• Testing transformers to ensure they are operating within specifications
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Q1. All transformer part
Ans. 
Transformer parts include core, windings, insulation, and terminals.
• Core: Provides magnetic path for the transformer

• Windings: Conductors that carry current and create magnetic field

• Insulation: Prevents short circuits between windings

• Terminals: Connect transformer to external circuit

• Examples: Enameled copper wire for windings, silicon steel for core
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Q1. What is timing joining
Ans. 
Timing joining refers to the process of connecting electrical wires or components based on a specific timing sequence.
• Timing joining involves connecting electrical components in a specific order to ensure proper functioning.

• It is crucial in complex electrical systems where timing is essential for synchronization.

• Examples include connecting wires in a circuit board based on a predetermined timing sequence.

• It can also re...read more
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Q1. Generator operatare
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Q1. How many years do you have experience
Ans. 
I have 8 years of experience working as a Shift Engineer in various industries.
• I have 8 years of experience as a Shift Engineer

• Worked in various industries such as manufacturing, energy, and facilities management

• Experience in troubleshooting, maintenance, and operation of equipment

• Familiar with safety regulations and protocols

• Led teams in shift operations and coordinated with other departments
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Q2. What kind of breaker you use in your previous company
Ans. 
We used air circuit breakers in my previous company.
• We used air circuit breakers for their reliability and ease of maintenance.

• Air circuit breakers are commonly used in industrial settings for their high breaking capacity.

• Examples of air circuit breaker brands we used include Siemens and Schneider Electric.
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Q1. Circuit Breaker rating?
Ans. 
Circuit breaker rating refers to the maximum current that the breaker can safely interrupt without causing damage.
• Circuit breaker rating is typically expressed in amps (e.g. 15A, 20A, 30A).

• The rating should be chosen based on the maximum current that will flow through the circuit.

• It is important to select a circuit breaker with a rating higher than the maximum current to prevent tripping.

• Using a circuit breaker with a ...read more
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Q2. How cycle breaker maintenance done
Ans. 
Cycle breaker maintenance involves regular inspection, testing, and replacement of components to ensure proper functioning.
• Inspecting for signs of wear or damage

• Testing functionality with appropriate equipment

• Replacing faulty components as needed

• Following manufacturer's guidelines for maintenance schedule

• Keeping detailed records of maintenance activities
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Q3. Cleanness the breaker the breakup from CNC Check spring charge motor resistance Shake closing call tripping coil
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2 sum problem given arreay

Low level design question on design system for parking lot system.