This document summarizes an internship report on testing energy meters and substation equipment. It describes various tests performed on energy meters like no load test, starting test, and dial test. It provides details about single phase and three phase energy meters. It also explains the working of a transformer and different types of insulators and arresters used in substations. Various ratings of distribution transformers from 5KVA to 200KVA are listed. The document concludes with an overview of safety equipment used in substations.

1. INTERNSHIP
UTTAR GUJARAT VIJ COMPANY LIMITED
ASARI HARDIKKUMAR (21012082002)
BARAD DHRUMILSINH (21012082003)
SEM-8 B.TECH ELECTRICAL.E
GUIDE BY PROF: RAVI BHAVSAR
REVIWER BY PROF: M.S.PATEL

2. Substation Layout:

3. METER LEBORETRY
AND ELECTRICITY
THEFT
• INFORMATION OF METER
The energy meter is an electrical
measuring device which is used to
record electricity energy consumed
over a secified period of the in
terms of units.

4. WHAT IS ENERGY METER
• ENERGY METER is a device that measures the amount of electrical
energy consumed by residence or commercial unit over a period of
time.
Energy=Power X Time
• The most common unit of measurement on the electricity meter is
the kilowatt hour, which is equal to the amount of energy used by a
load of one kilowatt over a period of one hour, or 36,00,000joules.

5. TESTING OF ENERGY
METER

6. TESTS TO BE
PERFORMED ON
METER
• NO LOAD(CREEP) TEST.
• STARTING TEST
• REPATIBILTY ERROR TEST
• EARTH (GROUND )TEST
• DIAL TEST
• ROUTINE TEST

7. Accucheck Testing kit
Step
1. Connect CT Coil wiring on load side.
2. While giving PT first Neutral to be given
& then step by step phase to be given
3. While removing PT first remove phase
step by step and then last earthing.
4. After doing CT Coil & PT wiring, verify
Voltage, Amp. & Load PF of Meter with
accucheck. They are almost same
depend on variable load

8. • For dial test: Go in setting of accuchek. After that set
• Current range: 50 A
• Voltage Range: 240 V
• Testing Mode: ST/ST
• Pulse:1
• PT Ratio: 1
• CT Ratio: 1

9. Single Phase Smart Energy Meter
1) Capacity of meter 5-30 amp DEL
2) Input voltage constant 240 volt
3) Class 1.0
4) Frequency 50 Hz
5) 3200 impulse/kWh
6) PROPERTY OF PASCHIM GUJARAT VII CO LTD
7) Manufactured by Eppeltone Engineers Pvt.Ltd. New Delhi.
8) GAURANTED PERIOD: 5½ Year

10. Three Phase Energy Meter
1) Three phase 4 wire meter
2) 3 240 voltage
3) IB: 10A, Imax: 60A
4) Class: 1.0
5) Ref temp:- 27°C
6) Firmware Version: LC001.63159
7) Guarantee period: 5% years
8) Pulse rate: 1200 imp/kWh
9) MF: 1 Freq: 50Hz
10) property of UGVCL

11. Transformer
Transformer is static device which is used to transfer
electrical energy from one ac circuit to other ac circuit,
with increase or decrease in voltage / current but
without any change in frequency.

12. Principle Operation:
• Primary winding is connected to 1-phase ac supply, an ac current starts flowing
through it.
• Primary current produce alternating flux in core.
• This changing flux gets linked with secondary winding through the core.
• The varying flux will induce voltage into secondary winding according to
faraday's law of electromagnetic induction.
• These transformers are mostly use for step up or step down the voltage.

13. Types of insulators
• (a) Pin Type Insulator.
• (b) Suspention Type Insulator.
• (c) Strain Type Insulator.
• (d) Shackle Type Insulator.

14. (a) Pin Type
Insulator.
(b) Suspention Type
Insulator.
(c) Strain Type
Insulator.
(d) Shackle Type
Insulator.

15. Lightning Arrester:
Lightning arresters are used to protect electric
fences. They consist of a spark gap and
sometimes a series inductor. Such type of
equipment is also used for protecting
transmitters feeding a mast radiator. For such
devices the series inductance has usually just
one winding.

16. TRANSFORMERS
1. 5KVA TRANSFORMER
2. 10KVA TRANSFORMER
3. 25KVA TRANSFORMER
4. 100KVA TRANSFORMER
5. 200KVA TRANSFORMER

17. 5KVA TRANSFORMER 10KVA TRANSFORMER

18. 25KVA TRANSFORMER 100KVA TRANSFORMER​

19. 200KVA
TRANSFORMER

20. SAFETY
EQUIPMENT

21. THANK YOU