Power System Operation and Control 1 min read
TYPES OF SVC
1. Variable impedance type 2. Current source type 3. Voltage source type The followings are the basic types of reactive power control elements…
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Tap Changing in Transformer
Tap Changing Regulating the voltage of a transformer is a requirement that often arises in a power application or power…
Power System Operation and Control 2 min read
Automatic Load Frequency Control
The ALFC is to control the frequency deviation by maintaining the real power balance in the system. The main functions…
Power System Operation and Control 3 min read
Automatic Voltage Regulator
The automatic voltage regulator is used to regulate the voltage. It takes the fluctuate voltage and changes them into a…
Power System Operation and Control 1 min read
Static Excitation System
In this system, the supply is taken from the alternator itself through a 3-phase star/delta connected step-down transformer. The primary…
Power System Operation and Control 2 min read
AC Excitation System
The AC excitation system consists of an alternator and thyristor rectifier bridge directly connected to the main alternator shaft. The…
Power System Operation and Control 1 min read
DC Excitation System
The DC excitation system has two exciters – the main exciter and a pilot exciter. The exciter output is adjusted…
Power System Operation and Control 1 min read
Excitation System
Definition: The system which is used for providing the necessary field current to the rotor winding of the synchronous machine, such…
Power System Operation and Control 1 min read
Voltage Regulation of Transformer
Voltage Regulation With the increase in load on the transformer, there is a change in its terminal voltage. The voltage…
Power System Operation and Control 3 min read
Reactive Power Compensation
As is mentioned earlier, the test transformers are used for testing the insulation of various electrical equipments. This means the…
Power System Operation and Control 2 min read
REACTIVE POWER
Synchronous Generators: · Synchronous machines can be made to generate or absorb reactive power depending upon the excitation (a form of…
Power System Operation and Control 1 min read
DYNAMIC RESPONSE OF LOAD FREQUENCY CONTROL LOOPS
· It has been shown that the load frequency control system posses inherently steady state error for a step input. · Applying…