OILTAP R

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What should be done if the protective relay has tripped?

Perform maintenance on the on-load tap-changer without checking for damage

Immediately restart the on-load tap-changer and transformer

Contact Maschinenfabrik Reinhausen to check the on-load tap-changer and transformer (correct)

Reset the protective relay and continue normal operation

Which of the following statements is true about bleeding the protective relay when filling the transformer with insulating fluid?

It is necessary to bleed the protective relay to prevent gas accumulation.

Bleeding the protective relay is recommended to ensure proper operation.

Bleeding the protective relay is not necessary as gas accumulation is normal. (correct)

The text does not provide information on whether bleeding the protective relay is necessary.

What is the first step to take when the circuit breakers have been tripped by the protective relay?

Establish the time of tripping (correct)

Check the on-load tap-changer head cover for any leaking insulating fluid

Block the motor-drive unit by tripping the motor protective switch

Determine the operating position of the on-load tap-changer

What is the purpose of the pressure equalization element in the protective relay RS 2001?

To equalize the pressure between the protective relay and the transformer. Signup and view all the answers

If the flap valve of the protective relay is in the OPERATION position, what should be done?

Check the tripping circuit for potential faults Signup and view all the answers

Which of the following components is present on the rear view of the protective relay RS 2001/R?

Dummy plug Signup and view all the answers

What is the purpose of blocking the motor-drive unit by tripping the motor protective switch?

To prevent the on-load tap-changer from being actuated by remote control Signup and view all the answers

What should be done if the flap valve of the protective relay is in the OFF position?

Contact Maschinenfabrik Reinhausen to check the on-load tap-changer Signup and view all the answers

What is the purpose of the $\text{OPERATION (reset)}$ test button on the protective relay RS 2001?

To reset the protective relay after it has been tripped. Signup and view all the answers

Which statement is true regarding the protective relay RS 2004?

The flap valve features an automatic reset mechanism Signup and view all the answers

What is the function of the DW 2000 pressure monitoring device?

To protect the on-load tap-changer from impermissible pressure increases. Signup and view all the answers

Which of the following components is present on the view from above of the protective relay RS 2001?

Potential tie-in Signup and view all the answers

What is the primary function of the protective relay in the on-load tap-changer?

To trip the circuit breakers when the specified speed of insulating fluid flow is exceeded due to a fault Signup and view all the answers

Which statement accurately describes the protective relay's operating principle?

It uses a flap valve mechanism that is actuated by the flow of insulating fluid, triggering a dry-reed magnetic switch Signup and view all the answers

According to the IEC publication 60214-1, what property of the protective relay is specified?

The properties of the insulating fluid it is filled with Signup and view all the answers

Under what circumstances will the protective relay NOT trip the circuit breakers?

When the transformer is operating under rated switching capacity Signup and view all the answers

What component of the on-load tap-changer is the protective relay a part of?

An on-load tap-changer filled with insulating fluid Signup and view all the answers

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