220 kv substation Ghazipur (new delhi)

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220 kv substation ghazipur , new delhi if u have any queries regarding this presentation or substation mail me " mdzeeshan378@gmail.com"

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SHARDA UNIVERSITY (SCHOOL OF ENGINEERING AND TECHNOLOGY):

SHARDA UNIVERSITY (SCHOOL OF ENGINEERING AND TECHNOLOGY) SEMINAR ON : GHAZIPUR SUBSTATION PRSENTED BY : MD. ZEESHAN FAIZI 09SETEE080 BRANCH - EEE

Ghazipur substation:

Ghazipur substation This substation has the capacity of 220kv and can step down to 66kv using two input lines through the incoming feeders. The input feeders are namely: 1 . Sahibabad (220KV) & 2 . Noida 1 (Sec-62) (220KV )

These feeders come into the substation with 220kv. The substation of 220kv/66kv /11kv has fifteen outgoing feeders, namely: :

T hese feeders come into the substation with 220kv. The substation of 220kv/66kv /11kv has fifteen outgoing feeders, namely: 66 kv outgoing to Kondli-1 Kondli-2 Vivek Vihar-1 Vivek Vihar-2

PowerPoint Presentation:

11 kv outgoing to DDA Flat Fish Market-1 Telco-1 Telco-2 Local TR KHP S/STN-3 Fish Market-2 Telco-3 DDA SFS Flat Taj Appartment BPS

SINGLE LINE DIAGRAM:

SINGLE LINE DIAGRAM

EQUIPEMENTS IN SWITCH YARD :

EQUIPEMENTS IN SWITCH YARD An electrical substation is an assemblage of electrical components including bus bars Isolators circuit breakers Transformers lighting arresters instrument transformers….etc ..

INSULATORS :

INSULATORS These provides necessary insulation between line conductors and supports and thus prevent the leakage of current from conductors to earth. Materials used for insulators: Ceramic( porcelain,steatite ) Glass Synthetic resins.

PROPRETIES OF INSULATORS:

PROPRETIES OF INSULATORS High Electrical resistance of insulator material in order to avoid leakage currents to earth. High Mechanical strength to with stand conductor load, wind load etc .’ It should be non porous and free from impurities and cracks . High ratio of puncture strength to flashover

Types of insulators:

Pin type Insulators Pin type insulators are used for transmission and distribution of electric power at voltages upto 33 kV. Types of insulators

 2 Suspension Type :

2 Suspension Type Used For high voltages (>33 kV) Each unit or disc is designed for low voltage, say 11 kV

3 Strain Insulators :

3 Strain Insulators When there is a dead end of the line or there is corner or sharp curve, the line is subjected to greater tension. In order to relieve the line of excessive tension, strain insulators are used. When the tension in lines is exceedingly high, at long river spans, two or more strings are used in parallel

4  Shackle Insulators :

4 Shackle Insulators For low voltage lines (< 11 kV), shackle insulators are used as strain insulators

LIGHTNING ARRESTER:

LIGHTNING ARRESTER A lightning arrester is a device used on electrical power systems to protect the insulation on the system from the damaging effect of lightning.

BUS BARS :

BUS BARS The flow of electrical power between incoming and outgoing circuits takes place through the bus bars. These are junction points carrying huge power’ These are copper rods or thin walled tubes operating at constant voltage.

TYPES OF BUS BARS ARRANGEMENTS:

TYPES OF BUS BARS ARRANGEMENTS SINGLE BUSBAR ARRANGEMENT It is used for 132kv substations. It is cheapest and simplest in design . . It is totally shutdown in case of a fault.

Double bus bar arrangement::

Double bus bar arrangement : This system is costlier than a single bus bar system. One bus can be serves as a reserve, which is used during the maintenance or fault conditions’ It is used for 220kv sub stations.

Double bus bar with transfer bus: :

Double bus bar with transfer bus: This system has additional flexibility for operation. We can shut down on breaker without interrupting the transmission line. It is used for critical 220kv sub stations.

CIRCUIT BREAKERS :

CIRCUIT BREAKERS Circuit breaker is automatic switching device which can carrying normal current and switching in & out normal loads Interrupt short circuiting currents Able to performer auto reclose duty.

PowerPoint Presentation:

Actuator lever - used to manually trip and reset the circuit breaker. Actuator mechanism - forces the contacts together or apart Contacts - Allow current when touching and break the current when moved apart Terminals Bimetallic strip. Calibration screw - allows the manufacturer to precisely adjust the trip current of the device after assembly. Solenoid Arc divider/extinguisher

USES OF CIRCUIT BREAKER:

USES OF CIRCUIT BREAKER Circuit breaker are used for all type of voltage. It is using in high power laboratories. It is using outdoor as well as indoor protection.

Current Transformer:

Current Transformer Used for measuring high value currents. Designed to provide a current in its secondary coil proportional to current flowing in its primary coil. Primary winding consists of very few turns. Secondary winding consists of large no. of turns. Current to be measured is passes through primary winding.

Potential Transformer::

Potential Transformer: Used for the measurement of high voltages. Primary winding is connected to voltage to be measured. Voltmeter is connected across the secondary winding.

Protection of potential transformers::

Protection of potential transformers: Fuses are used in the secondary side to protect the P.T. against faulty switching and defective earthing

ISOLATOR:

ISOLATOR It is a disconnection switch and to be operated on no load. An isolator switch is used to make sure that an electrical circuit can be completely de-energized for service or maintenance

MAIN FUNCTION OF SWITCHYARD.:

MAIN FUNCTION OF SWITCHYARD. It makes available the generated power at plant to the people. Power generated at power station transmitted via switchyard. Switchyard protect the plant due to sudden damage outside the plant

CONCLUSION:

CONCLUSION Switchyard is most essential part of the power system. It is the protective part of the whole power system. Switch yard is also most essential part for transmission, distribution, and collection.

PowerPoint Presentation:

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