1. WINTER INTERNSHIP
(14 DEC 2015-12 JAN
2016)
Submitted By:
Mitali Kumari
National Institute Of
technology Agartala
B.tech (3rd year)
Electrical Engineering

2. LARSEN & TOUBRO
One of the largest technology, engineering, construction &
manufacturing companies in India’s private sector founded in
1938 by 2 Danish engineers- Henning Holck-Larsen & Soren
Kristian Toubro.
Some largest and heaviest equipment by L&T :- India’s biggest marine
equipment- an Oil & Gas processing Complex, India's widest range of
switchgear, World’s largest Ammonia convertor, World's largest cross
country Conveyor and Coal Gasifier.
L&T has over 130 subsidiaries and 15 associate companies.
L&T IC’s – Power, Mechanical & Products, Switchgear, Heavy Engineering,
Infrastructure, Building, Mineral & Metals, Electrical & Automation.
L&T Subsidiary – L&T Infotech, L&T Financial Services, L&T Power
Development, L&T IDPL.

3. SWITCHBOARD
S
COMPONENTS
OF
SWITCHBOARDS
Switchboards are
devices with various
panels that allow
division of supplied
current into smaller
current for further
distribution and
provide protection,
switching and
metering of these
currents.

4. OMAN PROJECT
SAIH RAWL
DEPLETION
COMPRESSION
PHASE II

5. HMD-I, Sharjah SGD EPC#1 5
Saih Rawl Depletion Compression - Phase 2
30 MMSCMD Capacity
48 MMSCMD Capacity
Existing
Separators
(6 Nos.)
V-4001
V-4002
V-4003
SRS
Barik
Mabrouk
SR Oil
SR Main
EXISTING FACILITY
SRDC II SCOPE
(4 x 25% Compressors)
Condensate
Condensate
GasWell
Fluid
Condensate
13 bara
37 bara
100 C
96 bara
Water Drain
Export
Treated
Gas
LPG
Storage /
Oil Line
Process Flow Scheme
Flash
Ejector
Inlet Separator
Condensate
Transfer Pump
SRS/
Barik
SN
Kauther
Gas
Condensate
Motive
Gas
(4 x 25% Compressors)
Condensate
Flash Vessel

6. HMD-I, Sharjah SGD EPC#1 6
Saih Rawl Depletion Compression - Phase 2
COMPRESSOR
E-5512
DISCHARGE
COOLER
SUCTION
SCRUBBER
FROM INLET
SEPARATORS
TO SRDC 1 –
TRAIN 1
SRDC 2 - Process Flow Scheme
COMPRESSOR UNIT-2
COMPRESSOR UNIT-3
COMPRESSOR UNIT-4
TO SRDC 1 –
TRAIN 2
FROM INLET
SEPARATORS
E-5511
SUCTION
COOLER
22 Cr DSS
CS + SS 316L clad
SS 316L
SEAL GAS
Carbon Steel
To produced
Water Header
To condensate
flash vessel
100 /1465 60 /1415
60 /1315
148 / 3700
100 / 3500
0C / KPa

7. LV SWITCHBOARD
SCHEME
O/G FEEDER

10. LOAD DATA CALCULATION
In this method we calculate the
peak load of a given system in
order to determine the rating of
transformer to be used to feed
these loads.
Consumed load are of 3 types-
1) Continuous(E)- with diversity factor of
100(x)
2) Intermittent(F)- with diversity factor
of 30(y)
3) Stand by(G)- with diversity factor of
10(z)

11. KEY SINGLE LINE
DIAGRAM
• It is the schematic
drawing of a
3phase system
reduced to single
line where each
devices are
represented by
their symbols and
designated by
their ANSI device
no◦ with all
ANSI DEVICE
NO◦
• According to
ANSI/IEEE
standards every
physical
device(like-relays,
circuit breakers)
are designated
with a distinct
number which is
used to identify
AUTO/MANUAL
CHANGEOVER
SCHEME
• When supply of
any of the
incomers fails the
respective breaker
trip on under
voltage and bus
coupler is closed
so that the supply
to loads is
continued from

12. MEASUREMENT
• Sensors &
Transducers to
convert primary
physical quantity to
another and then
transmit it through
transmitters Ex:
Level transmitter,
Pressure transmitter
, Temperature
transmitter , Flow
transmitter after
amplification.
ANALYSIS
• DCS – Distribution
Control System for
control &monitoring
purpose
• PLC – Programmable
logic controller for
safety purpose
CONTROL
• SAFETY VALVE –
Critical valves for
safety of the
process.
• On Off valves- which
opens and close
fully.
• CONTROL VALVE –
controlled by
operator with analog
signals.
INSTRUMENT
ATION

14. WELL HEAD