Construction Manual for Sub-Stations

RAJASTHAN RAJYA VIDYUT PRASARAN NIGAM LTD.
(Regd. Office: Vidyut Bhavan, Janpath, Jyoti Nagar, Jaipur–302005)
CONSTRUCTION
MANUAL
FOR
SUB STATIONS
Last Updated : 31-1-2008

F O R E W O R D
The Engineers experienced in the field of Transmission have made this effort to
compile the experience gained over the past 40 years in the form of a Manual and
make it available to the Engineers and Technical Supervisors of the Company. This is
a step forward to disseminate knowledge so that uniform practices and procedures are
followed in the construction activities in the Company.
This Manual covers all the activities related to the construction of Sub Stations.
I appreciate the work done by the members of the Committee in preparing and
bringing out this Construction Manual for Sub Stations.
I hope that the Manual will be of immense use and reference to the Engineers of
the Transmission & Construction Wing.
Shreemat Pandey
April, 2007 Chairman & Managing Director
Jaipur Rajasthan Rajya Vidyut Prasaran Nigam Ltd.
Last Updated : 31-1-2008

P R E F A C E
The construction practices in the transmission wing of RVPN have been built over
the past 40 years and passed on from seniors to juniors. The new generation of
Engineers, skilled Technical Supervisors and Workmen has, from time to time,
constantly updated the construction practices according to the latest developments in
the field of Transmission Engineering.
It was felt that the construction practices built over the years be compiled in the
form of a Manual and made available to Engineers and Technical Supervisors
engaged in the construction activities so that uniform practices and procedures are
followed in the Company.
A Committee of the following Engineers experienced in the field of Transmission
was assigned the task of preparing the Construction Manual:
Shri S. Dhawan, Chief Engineer (MM)
Shri B. N. Saini, Superintending Engineer (400 KV Design)
Shri Raghuvendra Singh, Executive Engineer (Prot. II)
Shri Mohan Singh Ruhela, Executive Engineer (C&M–400 KV GSS), Heerapura
Shri A. D. Sharma, Assistant Engineer (Civil – 400 KV Design)
Shri Atul Sharma, Assistant Engineer (TLPC)
I appreciate the work done by the members of the Committee in preparing and
bringing out this Construction Manual for Sub Stations. I am confident that the
Manual will be of great help to the Engineers posted in the Transmission &
Construction Wing in discharging their duties.
Y. K. Raizada
April, 2007 Director (Technical)
Jaipur Rajasthan Rajya Vidyut Prasaran Nigam Ltd.
Last Updated : 31-1-2008

CONTENTS
Section – I:
1.
2.
3.
4.
Section – II:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
SITE SELECTION & SUB STATION DESIGN
Selection of Land
Layout Design
Safety Clearances
Earth Mat Design
ERECTION, TESTING AND COMMISSIONING
General Instructions
Structures
Bus Bar and Earth Wire
Aluminium Pipe Bus Bar and Joints
Power Transformers
Circuit Breakers
Isolators
Current Transformers
Capacitor Voltage Transformers (CVT) /
Potential Transformers (PT)
Lightning Arresters
Post / Polycone Insulators
Wave Traps
Line Matching Unit (LMU) /
Line Matching Distribution Unit (LMDU)
Capacitor Banks
Earthing
Cable Laying and Wiring
Battery Sets (Valve Regulated Lead Acid / VRLA)
DC Panels
Battery Chargers
Control & Relay Panels
LT Panels
PLCC Carrier Sets
Carrier Protection Couplers
PLCC Exchange
Commissioning of Sub Station
Bibliography
5
7
33
35
41
43
47
53
57
71
79
83
87
91
93
95
97
99
103
117
121
125
127
129
133
137
141
143
145
Last Updated : 31-1-2008

SECTION – I
SITE
SELECTION
&
SUB STATION
DESIGN
Last Updated : 31-1-2008