Join 60,000+ competitive exam aspirants
or with email
Your Cart
SubtotalтВ╣0
TotalтВ╣0
Examoogle тАв User тАв info@examoogle.com тАв EE-2024-8821
Chapter 1 of 12 тАв Page 1 of 248ЁЯФТ Protected PDF тАв Watermarked
Join 60,000+ competitive exam aspirants
Which of the following equipment is not installed at substation?
Exciter
Series capacitor
Shunt reactor
Voltage transformers
Exciter
An exciter is a component specifically associated with synchronous machines, such as generators, used to provide DC current to the field winding. It is installed at the power generation plant, not at a distribution or transmission substation.
An exciter is a component specifically associated with synchronous machines, such as generators, used to provide DC current to the field winding. It is installed at the power generation plant, not at a distribution or transmission substation.
EfтАЛ=KfтАЛIfтАЛ тАФ Where EfтАЛ is the induced field voltage and IfтАЛ is the excitation current provided by the exciter.
The exciter provides the excitation current (DC) to the rotor of an alternator to create the required magnetic flux. In modern plants, this is typically a brushless exciter or a static excitation system integrated directly with the turbine-generator set.
Exciters are exclusively part of the generating station infrastructure.
Series capacitors are used in substations to compensate for transmission line reactance.
Shunt reactors are used at substations for voltage control, specifically to compensate for the Ferranti effect in long transmission lines.
Voltage transformers (VTs) are essential at substations for metering, relaying, and protection.
Substations primarily deal with voltage level transformation, switching, and power factor correction.
Options B, C, and D are standard reactive power management and monitoring tools located within the switchyard of a substation.
A is correct тАФ The exciter is a component of a synchronous generator system located at the power station, not at an electrical substation.
Always distinguish between equipment located at the 'Source/Generation' side and the 'Transmission/Distribution' side; exciters, governors, and turbines are generation-specific.