132 kv seminar ppt

INDUSTRIALINDUSTRIAL TRAININGTRAINING PRESENTATIONPRESENTATION

ONON 132KV SUBSTATION

NECS’s GROUP OF INSTITUTIONSCHIRAO,KARNAL

Presented By-

SOURABH Roll no-7910476-l

7TH SEM

Electronics & communication Engineering,

CONTENTS

1.SUBSTATION.2. CIRCUIT BREAKER3. PROTECTIVE RELAY4. LIGHTING ARRESTERS5. BUS BAR6. SWITCHES7. CONTROL ROOM8. TRANSFORMER9. PLCC10. RTU11.SCHEMATIC DIAGRAM

• An electrical substation is a subsidiary station of a transmission and distribution system where voltage is transformed from high to low using transformers.

• Electric power may flow through several substations between generating plant and consumer, and may be changed in voltage in several steps.

It is an automatically-operated electrical switch.

It operates both on “ON LOAD” and “NO LOAD” conditions.

The protective relay ensures the safety of the circuit equipments from any damage which might otherwise cause by fault.

It is connected between the line and earth so diverts the incoming high voltage wave to earth.

Lightning arresters act as safety valves designed to discharge electric surges resulting from lightning strokes, switching or other disturbance .

Lightning arrestors directly connected at one end to the transmission system.

Bus-bars are merely convenient means of connecting switches and other equipment into various arrangements.

THERE ARE TWO TYPES OF BUS :-

1.Main bus

2. Transfer bus

A switch is used in an electric circuit as a device for making or breaking the electric circuit in a convenient way

The control room is nerve center of a power station .

The various controls performed from here are voltage adjustment, load control, emergency tripping of turbines etc.

A transformer is a device that transfers electrical energy from one circuit to another through inductively coupled conductors-the transformer's coils.

Types:-

1. STEP-UP

2. STEP-DOWN

A transformer is a static device which transfers a . c. electrical power from one circuit to the other at the same frequency but the voltage level is changed

Power Line Carrier Communication, is an approach to utilize the existing power lines for the transmission of information.

The communication device used for the communication over the power lines is a MODEM, commonly known as Power Line MODEM (PLM).

It works as both transmitter and receiver, i.e., it transmits and receives data over the power lines

It collects three primary types of data .

1.the status of process devices (digital inputs)

2. measures process variables (analog inputs)

3.accumulators (pulse inputs).

RTU database can be downloaded on operator request, from a PC using the SIM900 software.

The software package delivered with S900 RTU allows to handle both digital and analog inputs/outputs

DIAGRAM OF RTU