The slides give a brief about the basic operations in a Thermal Power Station, The does and dont,s are discussed in the presentation. The general mistakes to be avoided while doing any operation in the Power Plant are also discussed.

1. Station
By
Manohar Tatwawadi
Mob. No.:- 9372167165
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Principals of
Operation of a
Thermal Power
Station By
Manohar Tatwawadi
total output power solutions
Paiton Thermal Power Station, INDONESIA

2. GENERAL PRINCIPLES OF
OPERATION
• Operations must be carried out with certain goals /
milestones such as (Hydraulic Test, Acid Cleaning,
loading, Cold Rolling, Hot Rolling etc.) and must be
decided before doing the actual operations.
• The operations to be done serially and / or parallel must
be decided as per the goals / milestones set for the
operation.
• As the fuel consumed during startup before
synchronization increases the HEAT RATE, set the
priorities for the starting and stopping of the systems.
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3. GENERAL PRINCIPLES OF
OPERATION…
• Before the operation is carried out, think about
the parameters, that may prove the operation,
e.g. in case of starting a pump, check the ampere
meter, bearing temp, pump pressure, suction
level, pump flow etc.
• After the starting of pumps, fans etc, check
the starting kick in the ampere meter. In case of
big auxiliaries such as BFP, keep a watch on
station load and inform other control rooms /
units.
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4. GENERAL PRINCIPLES OF
OPERATION…
• For charging steam / water/ fluid lines open the drains
and vents of the line / header. Then open the isolating
valves and charge the line with steam / water / fluid.
When continuous steam / water / fluid comes out from
the drains, close the drains. This procedure will eliminate
the hammering in lines / headers causing damage.
• (If there is water in the header and if the steam valve
inlet to the header is opened, the steam going into the
header gets condensed forming a vacuum in the header
and causes severe hammering in the header.)
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5. ACTUAL OPERATIONS…
• Close the vents also when the steam / water /
fluid comes out from the vents in a continuous
manner. This procedure eliminates the possibility
of air entrapment in the header / vessel/
pipeline.
• While starting a fan, it must be started on no
load and hence its discharge damper must be
kept closed, the vanes also must be at minimum.
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6. ACTUAL OPERATIONS….
• The lubricating oil pumps must be developing the requisite oil
pressure for the bearing lubrication as well as for the control
oil. The standby oil pump must start in the event of any
problem in the running pump. The trials must be taken to
ensure this.
• While starting any pump, keep always the discharge valve
closed except for operation of some pumps where minimum
discharge pressure is required. (In case of CEP). Also the
auxiliary oil pumps for lubrication and control must be running
and developing requisite oil pressure.
• All pump / fan motors and Lubricating oil systems must be
charged from the GS cooling System for cooling of Motors and
Lubricating / Control Oil.
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7. ACTUAL OPERATIONS
• All starting / tripping interlocks for the equipment must
not be bypassed but put in service before starting the
equipment / auxiliary.
• For charging an electrical board, the HV side should be
charged first.
• All electrical operations, such as racking in of breakers
etc. must be done with all safety precautions.
• All the instruments viz pressure indicators, temp
indicators etc related to the system must be
calibrated well before charging the system.
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8. ACTUAL OPERATIONS…..
• The control supply must be Uninterrupted
Power Supply. In case of power failure, the
standby control power supply must take care of
all the equipment and men and machine.
• Check that all work permits related to the
system being operated are cancelled and all
the staff and laborers are in a safe zone before
charging the system.
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