Himachal Pradesh Irrigation And Public Health Department Tender

SITE CONDITIONS (I) Location of site Near Village Tawa Rafi (ii) The altidue of place which the motor is 905 mtrs. intended to work in ordinary service if it exceeds 1000 mt. (iii) Humidity Whether generally remains humid during monsoon season (iv)Nature atmosaphere As normally encountered in Shivalik Range (v)Detail of quality of water Raw water (vi)Water free from sand or not Yes (vii) water corosive or not Not (viii) Turbidity (if any) Upto 500 PPM (ix) NPSH available Negative suction x) Any other information or requirement

OPERATING CONDITIONS (I) Type of current AC three/single phase (ii) Operating frequency 50 HZ (iii) Rated voltage 400(+)-) 10% volts. (iv) System of earthing if any to be adopted Double loop earthing as per BIS 3043-1987 latest with upto date ammenmdments (v) No. of working hours per day 20 Hours (vi) Speed of revolution in RPM To be quoted by tenderer (vii) Direction of rotation To be quoted by tenderer (viii) The max. temp of cooling air & water in the place in which the motor is intented to work in ordinary service 35 Degree Centigrade

MOTOR (I) Ref to BIS code BIS 325-1978 read with BIS 900-1992(latest) with upto date ammendments. (ii) Type of enclosure of motor SPDP(As per BIS 4691-1985 (latest) (iii) Type of duty Continuous (iv) Mechanical out put in KW Suitable for driving centrifugal/ reciprocating pumps required for duties specified against pumps. To avoid overloading of motor a margin of about 15-20% may be kept in the rated out put of primer mover (v) Class of insulation Class- B/Class "F" (vi) Max. permissible temp. rise of motor reqd. if different from given in B (viii) above. - (vii) Particulars of test reqd. & where they are to be conducted As per terms and conditions. (viii) Particulars as to whether voltage limiting device will be employed. ATS/Star delta starter /Stator Rotor starter oil immersed, fully automatic to be installed between bus bar chamber and motor shunt capacitor is also proposed to be installed for improving the power factor at site. Note:- Star delta starter upto 37.5 KW ATS between 37.5KW to 50 KW & Stator rotor starter with slip ring motor beyond 50 KW (ix) Motor whether squirrel cage or splipring Submersible (x) Details of shaft extension reqd. Just sufficient to provide direct drive by flexible coupling to pump. (xi) Type of slip ring gear whether continously rated or for starting purposoes only & whether to be fitted with brush lifting or short circuiting arrangements or both if interlocks are required. Continuously rated for Squirrel cage/Slipring motor (xii) Breakway torque in terms of rated load torque & the corresponding breakway starting current which may be taken from the supply with the starting apparatus in circuit Breakway torque to be given by the tenderer but the starting current should not exceed 2.5 times of the full load current. (xiii) Nature of load & any information regarding the driven machine which has a bearing upon the torque reqd. during the accelerated period, the kinetic energy of the moving parts to be accelerated & No. of starts during a specified period. To work the pump offered. (xiv) Where possible fault capacity of the system to which the motor is connected The motor should be able to withstand initial current of 2.5 time the rated current for two minutes without suffering damages or permanent deformations.