General
instructions
Ø
110
or 132 Power supply from Electricity Board is received at Traction Sub-Station
in KV.
Ø
Power
supply from Electricity Board is received in Three Phase.
Ø
At
Traction Sub – Station, the power supply is step down to 25 K.V.
Ø
This
25 KV power supply is given to Feeding Post.
Ø
Feeding
post means Supply control post, where the incoming feeder lines from the grid
sub- station are temporarily terminated.
Ø
Power
is supplied to Over Head Equipments in Single Phase.
Ø
Power
supply from adjacent Feeding Post is given in different Phases.
Ø
To
separate the two Phases at the meeting point, a Neutral Section is provided.
Ø
A
separate SWR, pertaining to 25 K.V. Traction, signed by DSO and DEE/ TRD, shall
be issued.
Ø
Power
Block means blocking of a section of line to electric traffic only.
Neutral
Section:
Ø It means a short
section of insulated and dead OHE, which separates the areas fed by adjacent
sub-stations or feeding posts.
Ø Before entering
Neutral Section, LP shall switch off power supply and after the engine clears
Neutral section, LP shall switch on power supply.
Ø While approaching
Neutral Section, the speed of trains shall not be less than 30 kmph.
Ø Warning Boards are
provided at 500M and 250M to inform LP that he is approaching a Neutral
Section.
Ø Warning Boards are
also provided to inform LP where to switch off power supply and to switch on
power supply.
Temporary
Neutral Section:
Ø If temporary speed
restriction of less than 30 kmph to be imposed within 1 Km on either side of
Neutral section, the Engineering official shall advise SMs at both ends.
Ø SMs shall advise
Section Controller and TPC.
Ø TPC shall arrange to
energize the Neutral section and to provide a temporary Neutral Section, where
necessary.
Ø Caution orders shall
be issued to LP that the original Neutral Section is energized and the location
of temporary Neutral Section and also the locations where to lower and raise
pantograph.
Ø Warning boards shall
be provided if temporary Neutral Section arrangement continues for more than 24
Hours.
