This PPT is all about training that I have taken at MPEB, Indore.

1. INDUSTRIAL TRAINING
SEMINAR
Seminar Coordinator:-
Mr. Abhishek Dubey
Presented by:-
Suraj Kumar Talreja
Branch :-Electrical & Electronics
Roll No: 0832EX111057

2. Contents
 Outline
 About MPPKVVCL Co. Ltd Indore

3. Outline
 15 days Summer Training at MPPKVV Co. Ltd,
Indore .
 From 12/06/2014 to 30/06/2014 at 33/11 KV.
 It was a good experience. I got to see what are
the processes that to be followed for
transformer repairing and saw the testing of
Low Tension Meter and High Tension Meter.
And I also saw how electricity get transmitted
from Substation to feeders.

4. About MPKVVCL Co. Ltd Indore
Introduction
 The Government of Madhya Pradesh vide
order dated 1st July, 2002 has incorporated
Madhya Pradesh Paschim Kshetra Vidyut
Vitaran Company Limited as a wholly
owned Government of Madhya Pradesh
Corporations under the Companies Act, 1956
to undertake activities of distribution and retail
supply for and on behalf of Madhya Pradesh
State Electricity Board in the areas covered by
the Commissionaires of Indore and Ujjain.

5. MPPKVVCL Objectives
 The main objectives are to achieving efficiency
gains and making necessary changes to make
the Company commercially viable,
progressively self sustainable and less
government dependent and at the same time,
balancing the interest of the consumers in
regard to quality of service and economical
tariff.

6.  The Government of Madhya Pradesh had
restructured the functions and undertakings of
Generation,Transmission, Distribution and
Retail Supply of electricity earlier carried out
by
 The Madhya Pradesh State Electricity Board
(‘MPSEB’ or ‘Board’) and transferred the same
to five Companies to function independently.
The five Companies are as under: -

7.  (1) M.P. Power Generating Company Ltd., Jabalpur
(MPPGCL) (GENCO)
 (2) M.P. Power Transmission Company Ltd., Jabalpur
(MPPTCL)
(TRANSCO)
 (3) M.P. Poorv Kshetra Vidyut Vitaran Company Ltd.,
Jabalpur (MPPKVVCL)
(EAST DISCOM)
 (4) M.P. Madhya Kshetra Vidyut Vitaran Company Ltd. Bhopal
(MPMKVVCL)
(CENTRAL DISCOM)
 (5) M.P. Paschim Kshetra Vidyut Vitaran Company Ltd.,
Indore (MPPKVVCL)
(WEST DISCOM)

8. About Training
Whole Training is divided into Four Sections:-
 MTRU(Main Transformers Repairing Unit) – 4
Days
 LTMT Lab(Low Transmission Meter Testing
Lab) – 4 Days
 HTMT(High Transmission Meter Testing Lab) –
3 Days
 33/11 KV Substation. – 4 Days

9. MTRU(MAIN TRANSFORMER
REPAIRING UNIT)
 In this Section four days training were taken
place.
 Here, we had found how transformer got repaired
and the processes which are to be followed for
repairing.
 The faulty transformer is brought on a vehicle to
the MTRU, from where it is placed on a suitable
place with the help of a manually operated crane.
 Firstly, the Transformer is opened and
Transformer oil is removed
 Then the Transformer is heated in Electric heater
at 80ºC for 8 – 10 Days to remove the Moisture.

11.  Then the Transformer is heated in Electric
heater at 80ºC for 8 – 10 Days to remove the
Moisture.
Then After this Transformer is taken out from
Heater
and Transformer Test is performed:
 Double Frequency Double Test:
The object of this test is to secure that the
insulation between the phase windings, turn,
coils, tapping leads and terminals withstand
the temporary over voltages to which the
transformer may be subjected during it’s
lifetime.

13.  Transformer Winding Resistance Test:
Transformer winding resistance measurement is
carried out to calculate the I2R losses and to
calculate winding temperature to check loose
connections, broken strands of conductor, high
contact resistance in tap changers.
 Turn Ratio Test:-
The performance of a transformer largely
depends upon perfection of specific turns
or voltage ratio of transformer.

14. We just apply three phase 415 V supply to HV
winding, with keeping LV winding open. The
we measure the induced voltages at HV and
LV terminals of transformer to find out
actual voltage ratio of transformer.
 OIL TEST
In this test high voltage is applied across the
oil to determine it’s dielectric strength i.e break
down voltage.

15.  SHORT CIRCUIT TEST
Short circuit voltage and copper loss calculated
during this test determine the performance of
the transformer

17. LTMT(Low tension Meter
Testing)
 In this Section Low Tension Meter Testing
carried out, Low Tension Meter(Digital Meter)
Stands for the meter which is generally used
for Domestic and Industries purpose which is
under the range of 220-400 V.
 Instrument which is used for testing is
Phantom Loading.
 Some of the test is performed for LT Meters
are:

18.  Creep Test:
This test is done by energizing only the pressure
coil by supplying rated 220V whereas no
current flows through the current coil. In this
case the indicating LED should not blink.
Main Aim of this Test is to find out whether the
Meter is operating or not operating in No load
condition.

19.  STARTING CURRENT TEST:
In this test the current coil is energized by 0.5%
of the base current to check whether the meter
is working or not.

20. HTMT(High Tension Meter
Testing)
 Instead of only energy meter, energy meter is
used along with Metering unit ( A CT& PT
combination).It is generally used when the
supply ranges between 22kv and 66 Kv.
 This Metering unit provides 110v, 5A at the
secondary Side.

21. Metering Unit

22. The tests which are carried out here are:
 Oil Test:
In this Test High Voltage is applied at the Oil to
find out the Dielectric Strength of the Oil.
 Voltage Ratio Test:
In this test High Voltage is applies at the Primary
side and at the Secondary Side Voltage is
measured and Voltage Ratio is calculated.

23.  Ct Ratio Test:
In this Test a high current is applied through
Current Injector at the Low Voltage Side and
current is measured at the High Voltage side.
 Meter Test:

24. 33/11 KV Substation
 In this station, high transmission is step down
to lower voltage which is suitable for domestic
and commercial purposes.
 In this substation 33kv voltage is stepped
down to 11 kv.
 In substation generally more than one
transmission line is used to increase the
reliability. So that in case of fault in one line
other is operate.

26.  Similarly, here two transmission lines are used
from Chambal Hydro Electric Power Station.
 This transmission line are fed to the metering
unit for determining the electric I/P power.
 Then this Lines are fed to the step down
transformer via Protection unit, which consists
of Circuit Breaker and Relays.
 Output from the step down transformer is fed
to the different feeders.

27.  The Controlling of each feeder is done in
Control Unit.