1. How much current takes a 5hp motor ?, 2. Draw a STAR DELTA and DOL starter control wireing. 3. How to connect star connection, and DELTA connectin. 4. What is the kw of 30hp motor ?, 5. Can you connect a temperature controller ?, 6. What is really ?, 7. What is a SSR ? , 8. HOW TO CHECK A GOOD HEATER ?. 9. What is earthing and netural, how we get netural ?, 10. What is the meaning of A check, B check, and C check of a D.G

Question

Accepted Answer

Interview questions for an electrician including motor current, starter wiring, temperature controller, earthing, and D.G checks.

A 5hp motor takes around 20-25 amps of current.
STAR DELTA and DOL are three types of motor starters used in electrical systems.
Star connection involves connecting three windings of a motor in a triangular shape, while Delta connection involves connecting them in a star shape.
The kW of a 30hp motor is around 22.4 kW.
A temperature controller can be connected to regulate the temperature of a system.
Earthing is the process of connecting a conductive object to the ground to prevent electrical shock, while neutral is a point in an electrical system where the voltage is zero.
A Solid State Relay (SSR) is an electronic switch that uses a small control signal to switch a larger load current.
To check a good heater, one can measure the resistance of the heater element using a multimeter.
A check, B check, and C check are maintenance checks performed on a diesel generator to ensure its proper functioning.
Examples of checks include checking the oil level, fuel level, and battery condition.

Accepted Answer

The current rating of a 5 horsepower motor depends on the type of motor and the voltage at which it operates: 
 
3-phase motor at 230 volts: A 5 horsepower, 3-phase motor at 230 volts has a current rating of 12.4 amps. 
 
3-phase motor at 230 volts and 460 volts: A 5 horsepower, 3-phase motor has a current rating of 15.2 amps at 230 volts and 7.6 amps at 460 volts. 
 
3-phase submersible pump: A 5 horsepower, 3-phase submersible pump has a current rating of 8.4 amps. 
 
The actual current rating of a motor may be higher or lower than the average values listed in a chart. For the most reliable motor protection, use the actual current rating listed on the motor's nameplate.

Accepted Answer

ON THREE PHASE POWER 415 V 5 HP MOTOR TAKES 7.5 A

Accepted Answer

ON THREE PHASE POWER 415 V 5 HP MOTOR TAKES 7.5 A

Accepted Answer

Ji sir stear Delta ? dol stater Delta connection

Star connection

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