Enquiry Specification for Wagon Tippler with Side Arm Charger and ...
Enquiry Specification for Wagon Tippler with Side Arm Charger and ...
Enquiry Specification for Wagon Tippler with Side Arm Charger and ...
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<strong>Enquiry</strong> <strong>Specification</strong> <strong>for</strong> <strong>Wagon</strong> <strong>Tippler</strong> <strong>with</strong> <strong>Side</strong> <strong>Arm</strong> <strong>Charger</strong> <strong>and</strong> Associated works<br />
NRO/CON/WT/533<br />
xiv) RTD & BTD ( PT100 type) − All motors shall be provided <strong>with</strong> Bearing<br />
(DE & NDE) temperature detectors <strong>and</strong> 6<br />
nos. stator winding temperature detectors,<br />
RTDs <strong>for</strong> monitoring alarm <strong>and</strong> trip<br />
conditions. RTD's shall be of PT100 type<br />
(duplex). − Analog input cards shall be<br />
provided in PLC <strong>for</strong> online monitoring of<br />
bearing (DE & NDE) <strong>and</strong> winding<br />
temperature of HT motors above 1000 KW .<br />
− For HT motors, temperature of each RTD<br />
(<strong>for</strong> winding / bearing) shall be wired to<br />
PLC system <strong>and</strong> limit value contacts <strong>for</strong><br />
alarm <strong>and</strong> tripping shall be generated in the<br />
PLC along <strong>with</strong> the display of all parameters<br />
of the motor including the winding <strong>and</strong><br />
bearing temperature.<br />
xv) Vibration monitoring − Vibration monitoring (online) shall be<br />
provided at the DE end of motor bearing <strong>for</strong><br />
motors of ratings 1000 kW <strong>and</strong> above <strong>and</strong><br />
it should be connected to PLC <strong>for</strong> online<br />
monitoring .<br />
xvi) Paint shade − Light grey , shade no. 631 as per IS 5<br />
3.0 Terminal box<br />
i) Protection IP -55<br />
ii) Type Phase segregated<br />
iii) Location As per requirement 1 no. each on opposite<br />
sides of motor.<br />
iv) Winding star point − Winding star point shall be kept outside<br />
in the motor <strong>for</strong> more than 200 KW HT<br />
motor <strong>and</strong> other important HT motor . − In<br />
case no differential protection is required,<br />
star point of the winding may be <strong>for</strong>med<br />
inside the neutral terminal box to be<br />
provided on one side of the motor. The<br />
phase segregated terminal box shall be<br />
placed on other side of the motor.<br />
v) Suitability − Termination of XLPE cables <strong>with</strong> heat<br />
shrinkable cable end seals. − Each terminal<br />
box to have two inlets to accommodate any<br />
parallel cables as required.<br />
vi) Reversible To suit cable entry from Top / Bottom<br />
vii) Earthing stud<br />
Inside TB <strong>for</strong> protective earth conductor<br />
termination<br />
viii) No. of terminal boxes Separate <strong>for</strong> Space heaters, RTDs / BTDs ,<br />
Vibration monitor etc<br />
ix) Fault <strong>with</strong>st<strong>and</strong> (Min.) Rated Short circuit level of the system<br />
voltage <strong>for</strong> 0.25 sec<br />
4.0 Cooling TEFC / CACA / CACW CACW system shall<br />
be complete <strong>with</strong> temperature <strong>and</strong> pressure<br />
monitoring devices.<br />
EPI – New Delhi Volume-2B, Rev.0 Page 40 of 63
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