PACKAGE : I Bid Document VOLUME : II - Public Health Engineering
PACKAGE : I Bid Document VOLUME : II - Public Health Engineering
PACKAGE : I Bid Document VOLUME : II - Public Health Engineering
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The <strong>Bid</strong>der shall furnish with the offer the motor load – efficiency curve, torque -<br />
speed curve, load – power factor curve, thermal withstand curve (hot & cold),<br />
current speed curve & current time curve.<br />
The dimensional drawing of the offered motor, terminal box drawings, load data,<br />
GD 2 value of the drive & driven unit shall also be furnished with the offer.<br />
The motors weighing 25 kg. or more shall be provided with suitable lifting<br />
lugs/eyebolts having adequate provision of lifting in accordance with the relevant<br />
IS/IEC.<br />
Motors including fan shall be supplied duly painted with heat resistance paint of<br />
Siemens grey shade after proper surface cleaning & treatment.<br />
The routine test as per IS : 325 shall be conducted to each motor. Temp. rise test are<br />
to be concluded to at least for one motor. The motor vibration test shall be<br />
conducted mounting the motor on the job motor stool. All the above tests are to be<br />
conducted at the manufacturers shop in presence of owner/purchaser’s<br />
representatives. Apart from the shop testing, normal field testing are to be carried<br />
out during installation, pre-commissioning & commissioning stages. All necessary<br />
arrangements for the tests are to be made by the contractor at his own cost.<br />
The HT motors offered shall have phase segregated neutral terminal box, the<br />
HT motors shall also be suitable for use with VVVF drives i.e. A.C. drives with<br />
speed variation 50% to 100% and with variable torque. The motors should also have<br />
RTDs and BTDs for winding temperature and bearing temperature measurement.<br />
These RTDs signals will be connected to the PLC for condition monitoring of the<br />
HT motors. VVVF drives and PLC system is however outside the scope of this<br />
work.<br />
Apart from the Technical offer, the <strong>Bid</strong>der shall furnish the enclosed data sheet duly<br />
filled in with the Technical offer.<br />
19.11 H.T Power Distribution Panel Board<br />
The H.T. 6.6Kv, PDB shall effectively receive power & distribute to different outlet<br />
energizing H.T. motors etc. The HT Panel Board shall be suitable for 6.6Kv ± 10%,<br />
50 Hz ± 5%, 3 phase, A.C. supply system. The incoming power shall be made<br />
available from the nearby 33Kv/6.6Kv transformer prior to commissioning of the<br />
station.<br />
DTS : Detailed Tender Specification. Page 197
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