2012-03-30 09:29
Main Types of Transformers Read More
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Hydro power How a Hydro Power Plant works the Renewable energy source Hydro power is utilized. How a Turbine, Generator Power Transformer work in a power station.
2011-10-27 04:07
IntroductionProper grounding system will assure the safety of people and protection of equipments at faults. In large electrical system like power house or a substation has a grounding me… Read More
2011-10-23 04:12
Introduction to SUPERVISORY CONTROL AND DATA ACQUISITION SYSTEM (SCADA)SCADA refers to a system that collects data from various sensors at a plant or in otherremote locatio… Read More
2011-10-11 12:57
PROTECTIVE RELAYS IntroductionA protective relay is a device that detects the fault and initiates the operation of the circuitbreaker to isolate the defective element from the rest of t… Read More
2011-09-23 07:47
Voltage transformer A voltage transformer (VT) is a transformer used in power systems to step-down extra highvoltage and provide low voltage either for measurement or to operate a protective… Read More
2011-09-21 01:45
Disconnecting switchDisconnect switches are used to isolate a component of an electrical system from the power source. Electrical power distribution systems require switch… Read More
2011-09-17 02:57
Current interruption in a high-voltage circuit-breaker is obtained by separating two contacts in a medium, such as SF6, having excellent dielectric and arc quenching… Read More
2011-09-13 14:42
Generator ControlAutomatic Voltage Regulator (AVR) is the main controller of the Generator.AVR has the control over the Excitation System.Voltage RegulatorThe voltage regulator are composed… Read More
2011-09-10 14:15
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2011-09-05 16:21
Gas Circuit Breaker (GCB)Current interruption in a high-voltage circuit-breaker is obtained by separating two contacts in a medium, such as SF6, having excellent dielectri… Read More
2011-09-03 13:14
Circuit breaker
The circuit breaker is used for switching the circuit current and short circuit current interruption. There are two types of circuit breakers used in power stat… Read More
2011-09-01 14:37
Air Insulated Switchgear
An electric power substation that has the bus bars and equipment terminations generally
open to air and utilizes insulation properties of ambient air for in… Read More
2011-08-30 15:12
Substation
An electrical substation is a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or th… Read More
2011-07-21 11:50
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2011-07-21 07:16
<!--[if gte mso 9]> Normal 0 false false false EN-US X-NONE SI-LK… Read More
2011-07-21 07:10
Carbon Dioxide (CO2) Fire Fighting System CO2 fire fighting system Fire extinguishing system for two main transformers and two generators The fire extinguisher is commonly be used for two s… Read More
2011-07-21 07:07
Internal Cooling The heating of the coils depends on their thermal conductivity, which is itself a function of • Thickness of the winding • External insulation A coil design, w… Read More
2011-07-21 07:07
Forced Oil Cooling When forced cooling becomes necessary in large high-voltage oil-immersed transformers. The choice of the method of cooling will depend largely upon the conditions obtai… Read More
2011-07-21 07:06
Natural Oil Cooling The oil in the ducts, and at the surface of the coils and cores, takes tip heat by conduction, and raises cool oil from the bottom of the tank rising to take… Read More
2011-07-21 07:05
Mixed Cooling ON/OB: As ON, but with alternative additional air-blast cooling. ON/OFN, ON/OFB, ON/OFW, ON/OB/OFB, ON/OW/OFW: Alternative cooling conditions in accordance with the metho… Read More
2011-07-21 07:04
Simple Cooling AN: Natural cooling by atmospheric circulation, without any special devices. The transformer core and coils are open all round to the air. This method is confine… Read More
2006-06-07 11:16
Substation- Introduction
An electrical substation is a subsidiary station of an electricity generation, transmission and distribution system where voltage is transformed from high to low or… Read More
2006-06-07 11:16
Cooling System
The cooling of transformers differs from that of rotary machinery in that there is no inherent relative rotation to assist in the circulation of ventil… Read More
2006-06-07 11:16
Types of Underground transmission lines 1. High Pressure Fluid Filled pipe type (HPFF)- The conductor and its wrappings are often referred to as “cables.” The cables are surrou… Read More
2006-06-07 11:16
Current TransformersThe primary of a current transformer typically has only one turn. This is not really a turn or wrap around the core but just a conductor or bus going through the “… Read More
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