Aspect of making this report is to awareness about power distribution operation at University campus.

1. PRESENTED BY
Saikat Bhandari
TNU2015003100003

2. Introduction
Aspect of making this report is to awareness about power distribution
operation at University campus.
I also aware about suppliers of electrical Equipment
I acknowledge Prof. Ashoke kumar Bose for guide to get knowledge about
control, protection and instrumentation of Electricity distribution at our
campus.

3. OVERALL POWER DISTRIBUTION NETWORK AT CAMPUS

5. List of machine and Equipment Documented
• ISOLATOR & Distribution POST
• ASHIDA Numerical OC/EF Protection Relay
• INDOOR VCB (Vacuum circuit breaker ) PANEL
• POTENTIAL TRANSFORMER
• Kirloskar’s Dry Type Cast Resin Transformers
• Tap changer
• 3
1
2
CORE COPPER CABLE
• L&T’s C power air circuit breakers
• Multi-Function Panel Meter: Secure Dual Register Elite
• L&T’s rpm14 Reactive Power manager
• CUMMINS DIESEL GENSETS
• STAMFORD(HC4) ALTERNATOR

6. THIS THE SUPPLY POST FROM WBSEDCL
FOR 3 PHASE ELECTRIC SUPPLY
ISOLATOR &
Distribution POST

7. ASHIDA Numerical
OC/EF Protection Relay
Features: · 4 Element (3 Phase + EF) Over
current IDMT with instant trip. · Back - lit LCD
display for settings. · Display of fault current. /
Load current. · Selection of Curve: Six selectable
curves (Normal Inverse1 (C1), Normal Inverse2
(C2), Very Inverse (C3), Extremely Inverse (C4),
Long Time Inverse (C5) & Definite Time (C6). ·
Separate curve selection for phase and EF. ·
Design using DSP technology. · Latching of fault
current up-to last 5 fault · Password protection
for setting.

8. INDOOR VCB (Vacuum circuit breaker ) PANEL
Panel set when assembled with other panel to form a switch board shall be suitable for nominal operation voltage and rupturing
capacity as specified. The rated design of VCB Panel shall be 800A, 11KV, 26.3kA, 3 Phase, 50Hz system

9. POTENTIAL TRANSFORMER
Its attached with ELECTROTEKNIKA INDOOR VACUUM CIRCUIT-BREAKER UP TO 11 KV

10. Kirloskar’s Dry Type Cast Resin
Transformers
It’s a 160 KVA 11KV up to 10,000 KVA, 33 KV
Class transformer
ADVANTAGE :
• MAINTAINCE FREE , non toxic
• Non inflammable ,non hygroscopic
• Smaller size
• Low noise level
• High overload capacity

11. Tap changer
A tap changer is a mechanism in transformer which allows for variable turn ratios to be selected in discrete steps. Transformers with this
mechanism obtain this variable turn ratio by connecting to a number of access points known as taps along either the primary or secondary
winding. These systems usually possess 33 taps (one at centre "Rated" tap and sixteen to increase and decrease the turn ratio) and allow for
±10% variation (each step providing 0.625% variation) from the nominal transformer rating which, in turn, allows for stepped voltage regulation
of the output

12. 3
1
2
CORE COPPER
CABLE
FOR DELTA CONNECTION
3 WIRE BUS BAR USED
FOR STAR CONNRCTION 4
BUS BAR USED
(1 NEUTRAL)

13. L&T’s C power air
circuit breakers
Features:
A range to meet every customer’s need
Ratings : 400A to 6300A
Breaking Capacities : 50kA to 100kA
3 Pole / 4 Pole Versions with Fix / Draw-out configuration
High Short time withstand capacity, Icu=Ics=Icw for 1 sec
for total selectivity
Different terminal orientations : Flat, Horizontal and
Vertical
Elegant Design
Common door cut-out for entire range
Left aligned cut-out for all ratings
Uniform height and depth for ACBs upto 4000 Amp
User Friendly Features
Front accessible over current release settings, telescopic
racking handle and various racking interlocks; no need to
open the panel door
Unique ‘Maintenance position’ in drawout type ACBs to
facilitate maintenance & inspection without removing the
ACB from the panel
Wide variety of Micro-Processor based Protection
Releases
Unique O-LED (Organic LED) display for protection
releases
ON / OFF Load Isolator version available
Fully rated neutral pole for the entire range

14. Multi-Function Panel Meter: Secure
Dual Register Elite
Connection type CT operated, CTPT operated
Wiring configuration LT (3P4W), HT (3P3W, 3P4W)
Voltage Range LT: 240V (L-N) 415V (L-L) HT: 63.5V
(L-N), 110V (L-L)
Current 1-1.2A (Starting :1mA);5-
6A(Starting: 5mA)
Frequency 50 Hz +/- 5%
Power Supply Self Powered -30% to +20% Vb
Auxiliary Supply 24-60V DC
80-300V AC/DC
Overload Confirms class of accuracy up to
120%Ib continuous, Withstands up
to 130% Imax continuous, 20 X
Imax for 0.5 sec

15. Schneider Conzerv DM5200 series electronic
energy meter
Specifications
Accuracy
• Class 1.0; as per IEC 62052-11 & IEC 62053-21
• Class 0.5; ± (0.25% of reading + 0.25% of full scale)
Control power
• AC: Nominal 110V (Range 80 to 130 V AC) or Nominal 240 V (Range 170 to 300 V AC)
• AC burden: 3 VA max. on Auxiliary Supply
• Frequency: 45 to 65 Hz
• Installation category III
Pulse output
• Voltage Rating: 5 to 40 V DC
• Current Rating: 100 mA max
• Pulse Width: 500 ms ± 10%
Voltage inputs
• Measured voltage:
◦ 110 V AC L-L (80-130 V AC)
◦ 240 V AC L-N (170-300 V AC)
◦ 415 V AC L-L (330-470 V AC)
• Frequency: 50/60 Hz
• Permanent overload: 600 V AC L-L
• Measurement category III
Current inputs • Nominal 1 A (Range: 0.25 to 6.0 A)

16. Reactive power manager is designed for automatic control of
capacitor banks in 3 phase 4 wire LT distribution systems.
The relay maintains the system power factor at a set value,
under fluctuating load conditions, by connecting or
disconnecting capacitor banks to the 415V bus.
Features:
Automatic C/K ratio selection
Power Factor correction up to 1% of rated current
14 capacitor banks
Programmable CT ratio and capacitor bank values
Voltage, current and reactive power display
L&T’s rpm14 Reactive
Power manager

17. AC GENERATOR FOR BACKUP
AT NEOTIA UNIVERSITY CAMPUS CUMMINNS GENERATOR SET OF JACKSON LIMITED
MODEL CJ250D5P

18. STAMFORD(HC4) ALTERNATOR
Specifications
50Hz Maximum Continuous (kVA): 400
60Hz Maximum Continuous (kVA): 500
Voltage Designation: Low (< 1000V)
Voltage Range: 380-690
Poles: 4

19. CUMMINS DIESEL GENSETS
Diesel powered generating sets remain the most popular and reliable source of power, worldwide. Jakson offers a
comprehensive range of Cummins powered diesel generators ranging from 7.5 kVA to 3750 kVA in single node

20. Conclusion
The “THE NEOTIA UNIVERSITY POWER DISTRIBUTION Report Project” has documented Equipment used to
power distribution in the University campus. Current objectives are to 1) continue with analysis of the data
collected and 2) continue to study the operation of power distribution at campus and problems identification .
The ultimate goal of the project is to achieve a knowledge of academic electricity distribution network