Question 1 of 27070
Q
What is the purpose of the synchronous compensator as shown in the illustration? See illustration EL-0030.
A
to automatically provide leading kVAr to exactly match the ship's lagging kVAr load so as to provide overall unity power factor
B
to automatically provide lagging kVAr to exactly match the ship's leading kVAr load so as to provide overall unity power factor
C
to automatically provide lagging kVAr to exactly match the ship's lagging kVAr load so as to provide overall unity
D
to automatically provide leading kVAr to exactly match the ship's leading kVAr load so as to provide overall unity
Question 1 / 270705eccefa4bacbc34ba4d480ec
Question 1 of 270705eccefa4bacbc34ba4d480ec

What is the purpose of the synchronous compensator as shown in the illustration? See illustration EL-0030.

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Question 1 of 27070
Q

What is the purpose of the synchronous compensator as shown in the illustration? See illustration EL-0030.

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🔍 Key Concepts

• Synchronous compensator (synchronous condenser) operation with ship’s electrical bus • Difference between leading and lagging kVAr and how they relate to inductive vs capacitive loads • Goal of correcting to unity power factor on an AC system

💭 Think About

• Look at the arrow on the synchronous compensator in the illustration labeled "+Q" and think about whether that represents reactive power being supplied as leading or lagging. • Consider what type of reactive power most shipboard loads (motors, transformers) typically draw and whether the compensator should add the same type or the opposite type to correct the power factor. • Ask yourself: to bring an overall lagging power factor to unity, do you need to add leading or lagging kVAr? Then match that logic to the wording in the choices.

✅ Before You Answer

• Identify whether shipboard loads are primarily inductive (lagging) or capacitive (leading). • Confirm which direction of reactive power flow the synchronous compensator is designed to provide in this diagram (+Q toward the bus). • Verify which choice correctly pairs the compensator’s reactive power type (leading or lagging) with the opposite type of the ship’s load to achieve unity power factor.