LNG Operations - Engine

High Voltage Related Questions of LNG Fleet

Questions for ETO position working with High Voltage PMS and switchgear. Highly recommended for LNG fleet ETO's. Switchboards, procedures, VCB, HV Contactors and Safety questions are waiting for you here.

Питань 10

Час 5 min

Мова Англійська

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Питання 1

What is IGCT switching frequency?

A 500 Hz to 2 kHz

B 250 Hz to 500 Hz

C 1 kHz to 2 kHz

D 2 khz to 20 kHz

Питання 2

Ground detection for each ungrounded system should have a monitoring and display system that has a lamp for each phase that is connected between the phase and the ground. True or False?

A True

B False

Питання 3

The active guard sinewave filter converts the PWM wave form to a near sinusoidal wave form, protecting sensitive applications in the grid. True or False?

A True

B False

Питання 4

After power loss...

A ... the backup generator must be started and connected to the main switchboard within 30 seconds, but no more than 45 seconds.

B ... the second st-by generator must be started and connected to the main switchboard within 30 seconds.

C ... the st-by generator must be started and connected to the main switchboard within 60 seconds.

D ... the backup generator must be started and connected to the main switchboard within 45 seconds, but no more than 60seconds.

Питання 5

What are the key components of a high voltage circuit breaker?

A Contacts, coils, arc extinguishing chamber, and operating mechanism.

B Resistors, capacitors, and inductors.

C Semiconductors, diodes, and transistors.

D Sensors, actuators, and controllers.

High Voltage Related Questions of LNG Fleet

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