Substation Primary Equipments Theory & Testing
Description
Generating stations produce Electrical Power. These generating stations are located far away from the load centers (Industries, Commercial, Agriculture, Residential, etc,.). The transmission of power at a generated voltage (ex:11kV ) to a long-distance causes more power loss. This affects the efficiency of the system. To avoid this, the generated voltage should be stepped up to a higher value. This can be achieved with help of generating substations and stepping down at load centers using distribution substations. The Substations serve as an intermediate link between the generating station and the load centers. Here the voltages can be stepped up or stepped down using power transformers. The switching of various feeders can be done and also, substations provide voltage and current measurement with help of instrument transformers. Based on application, substations are classified into various types such as Generating substations, Primary grid stations, Switching substations, HVDC substations, etc. In terms of construction, substations are classified into various types such as Air-insulated Substations, Gas Insulated Substations, and PASS Substations. In this course, training on real-time Air-insulated substations will be provided. Also, information on advanced substations like gas-insulated and PASS substations will be provided. The training on Air-insulated substation practical equipment like a Current Transformer, Potential Transformer, Circuit Breaker, Isolators, Lightning arrestors, wave traps, capacitive voltage transformers, conductors, and busbars will be provided. Also, testing of each equipment will be demonstrated. |
What will you learn
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Various substations - Air Insulated, Gas Insulated, PASS Substations
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Current Transformer (CT) - General Arrangement
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Current Transformer (CT) - Knee point voltage, ISF, ALF, etc.,
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Types of CTs based on Core - Single core CT, Two Core CT, Three Core CT, etc.,
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Types of CT's based on Class - Metering Class, Protection Class, PS Class
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Understanding the Testing of CT
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Potential Transformer (PT) - General Arrangement
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Potential Transformer (PT) - Accuracy factor, Creepage distance, Voltage factor, Burden, etc.,
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Types of PTs based on Core - Single core PT, Two Core PT, Three Core PT, etc.,
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Types of PTs based on Class - Metering class, Protection class, etc.,
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Understanding the Testing of PT
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Capacitive Voltage Transformers (CVT) - General Arrangement
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CVT - Accuracy factor, Creepage distance, Voltage factor, Burden, etc.,
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Types of CVTs based on Core - Single core CVT, Two Core CVT, Three Core CVT, etc.,
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Types of CVTs based on Class - Metering class, Protection class, etc.,
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Understanding the Testing of CVT
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Circuit Breaker (CB) -General Arrangement
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Types of Circuit Breakers - Gang operated and pole operated circuit breaker
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Gang operated circuit breaker - Understanding of Electrical Drawing
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Isolator - General Arrangement
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Isolators based on poles- Single break type, Double break type, Pantograph type Isolators
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Isolators based on placement - Line Isolators, Bus Isolators, Transfer Isolators
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Isolator - Understanding of Electrical Drawing
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Power Transformer - General Arrangement
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Power Transformer - Various Trafo troubles such as WTI, OTI, OSR, BR, MOG etc.,
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Power Transformer - Power frequency voltage, Impulse Voltage, Vector group
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Testing of Power Transformer
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Other Equipments - LA, WT, Conductors and Busbars, etc.,
Requirements
- Knowledge on Electrical circuits
- Knowledge on AC machines
- Knowledge on Switchgear and Protection
Lessons
- 11 Lessons
- 05:34:33 Hours
About instructor
