Military Engineer Services Tender
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Military Engineer Services - MES Tender
Electrical Generators And Transformers
Electrical and Electronics
Eprocure
Opening Date5 Dec 2023
Closing Date2 Jan 2024
Tender Amount₹ 43,26,000
Costs
EMD
₹ 86,600Document Cost
₹ 500Tender Fee
Refer Documents
Description
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Contact
Tender Id
2023_MES_631127_1Bid Award Id
ViewTender No
84821 CWE PUNETender Authority
Military Engineer Services ViewPurchaser Address
-Website
http://http://mes.gov.in/
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Documents
BOQ Items
Ser. Item No. 2.00 Contd.....
(b) One cable box on LT side(secondary side) consisting of four no. porcelain bushing with copper rods, complete with nuts and washers, with cable glands suitable for reception/taking out single core /3.5 core of rated size/ runs of secondary currents, LT 1100 volts grade, PVC/XLPE insulated and PVC sheathed, heavy duty, armoured cables including jointing materials complete. with Bi metallic flexible connectors and copper bus bars of rated capacity with insulators support to be provided.
(c) Conservator with filter type drain valve and oil level gauge.
(d) De-hydrating breather with first fill of dehydrating agent (Silica Gel).
(e) Explosive vent, Thermometer pocket on tank cover, oil level gauge, Oil drain filter valve, Jacking / Lifting lugs, Marshalling 55, with oil filling hole with cap/plug with connection plate complete, Air release valve plug and four no. plain solid cast steel detachable rollers.
(f) One no 100 mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree Celsius with metal guard having maximum perimeter temperature reading indicator with re-setting device.
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Ser. Item No. 2.00 Contd.....
(g) Two earthing terminals on tank cover to facilitate fixing of 50x6mm galvanised iron earth strip for earthing of body. (h) Rating plate and terminal marking plate. (j) Extra bushing for neutral in the LT cable box for providing independent set of earthing for neutral.
(k) First fill of new and unused transformer oil, IS-335 of 1986 marked, filtered and tested up to 50 KV dielectric strength at 2.5 mm air gap between testing electrodes, specific resistance at 27 Degree Celsius Ohm-ohm 500 x 10 the power12, water content 50 PPM, Dielectric dissipation factor (tan Delta at 90 degree Celsius) 0.005, Neutralisation value mg of KOH/gm of oil 0.03, Inter facial tension N/M at 27 Degree Celsius - 0.04, flash point 140 Degree Celsius
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Supply & installation ,testing and commissioning of outdoor type transformer as per IS : 1180 part - I, Level-1 step down, copper Cu 99.9% purity, electrolytic grade wound 11KV/433 Volts (at no load) AC 3 phase 50 Hz 250 KVA capacity, core type, oil immersed naturally air cooled, oil natural air natural (ON/AN) , with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group DYn-11 with neutral brought out on secondary side (LV) and having taping at +5% to -10% in steps of 2.5% on HV side to be changed by means of hand operated off load tap changer gear.
The maximum temperature rise should not exceed 50 degree Celsius in oil and 55 degree Celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree Celsius transformer shall be of BOLTLESS core design. Transformer shall be double wound, core type with low loss, non ageing, high permeability CRGO prime core grade M-OH / ZDKH /TCH grade , perfectly insulated and clamped to minimize noise and vibrations.
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SER. ITEM No. 3.00 Contd....
The transformer shall be IS/IEC 60076 and as per IS-1180 part - I of 2014 marked. Flux Density at rated voltage and rated frequency should be 1.688 T. The transformer shall be designed as per CBIP manual 317 for over-fluxing withstand capacity of 110% continuous, 125% for 1 minute and 140% for 5 seconds. and over loading capacity of transformer shall be as per IS 6600 , Noise level as per NEMA TR1, with class A insulation, Tank pressure, Vacuum withstand capability & minimum clearances as per CBIP manual, No Load Current within 1% to 2% of Full load current Transformer losses shall not exceed the loses mentioned in Table 6 of IS: 1180 of 2014 Part - I with Energy Efficiency Level - 1 and shall comprise of the following accessories :-
(a) One cable box on HT side (Primary side) consisting of three no. porcelain bushing with copper rods, complete with nuts and washer , with cable glands suitable for reception/taking out 3 core 120 /185 , HT 11000 volts grade, XLPE insulated and PVC sheathed, heavy duty , armoured cables including jointing materials complete
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SER. ITEM No. 3.00 Contd....
(b) One cable box on LT side(secondary side) consisting of four no. porcelain bushing with copper rods, complete with nuts and washers, with cable glands suitable for reception/taking out single core /3.5 core of rated size/ runs of secondary currents, LT 1100 volts grade, PVC/XLPE insulated and PVC sheathed, heavy duty, armoured cables including jointing materials complete. with Bi metallic flexible connectors and copper bus bars of rated capacity with insulators support to be provided
(c) Conservator with filter type drain valve and oil level gauge.
(d) De-hydrating breather with first fill of dehydrating agent (Silica Gel).
(e) Explosive vent, Thermometer pocket on tank cover, oil level gauge, Oil drain filter valve, Jacking / Lifting lugs, Marshalling 55, with oil filling hole with cap/plug with connection plate complete, Air release valve plug and four no. plain solid cast steel detachable rollers.
(f) One no 100 mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree Celsius with metal guard having maximum perimeter temperature reading indicator with re-setting device.
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Ser. Item No. 3.00 Contd.....
(g) Two earthing terminals on tank cover to facilitate fixing of 50x6mm galvanised iron earth strip for earthing of body.
(h) Rating plate and terminal marking plate.
(j) Extra bushing for neutral in the LT cable box for providing independent set of earthing for neutral.
(k) First fill of new and unused transformer oil, IS-335 of 1986 marked, filtered and tested up to 50 KV dielectric strength at 2.5 mm air gap between testing electrodes, specific resistance at 27 Degree Celsius Ohm-ohm 500 x 10 the power12, water content 50 PPM, Dielectric dissipation factor (tan Delta at 90 degree Celsius) 0.005, Neutralisation value mg of KOH/gm of oil 0.03, Inter facial tension N/M at 27 Degree Celsius - 0.04, flash point 140 Degree Celsius
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Supply, installation, testing and commissioning of outdoor type transformer as per IS : 1180 part - I, Level-1 step down, copper Cu 99.9% purity, electrolytic grade wound 11KV/433 Volts (at no load) AC 3 phase 50 Hz, 400 KVA capacity, core type, oil immersed naturally air cooled, oil natural air natural (ON/AN) , with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group DYn-11 with neutral brought out on secondary side (LV) and having taping at +5% to -10% in steps of 2.5% on HV side to be changed by means of hand operated off load tap changer gear. The maximum temperature rise should not exceed 50 degree Celsius in oil and 55 degree Celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree Celsius transformer shall be of BOLTLESS core design. Transformer shall be double wound, core type with low loss, non ageing, high permeability CRGO prime core grade M-OH / ZDKH /TCH grade , perfectly insulated and clamped to minimize noise and vibrations.
1
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SER. ITEM No. 4.00 Contd....
The transformer shall be IS/IEC 60076 and as per IS-1180 part - I of 2014 marked. Flux Density at rated voltage and rated frequency should be 1.688 T the transformer shall be designed as per CBIP manual 317 for over-fluxing withstand capacity of 110% continuous, 125% for 1 minute and 140% for 5 seconds. and over loading capacity of transformer shall be as per IS 6600 , Noise level as per NEMA TR1, with class A insulation, Tank pressure, Vacuum withstand capability & minimum clearances as per CBIP manual, No Load Current within 1% to 2% of Full load current Transformer losses shall not exceed the loses mentioned in Table 6 of IS: 1180 of 2014 Part - I with Energy Efficiency Level - 1 and shall comprise of the following accessories :-
(a) One cable box on HT side (Primary side) consisting of three no. porcelain bushing with copper rods, complete with nuts and washer , with cable glands suitable for reception/taking out 3 core 120 /185 , HT 11000 volts grade, XLPE insulated and PVC sheathed, heavy duty , armoured cables including jointing materials complete.
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SER. ITEM No. 4.00 Contd....
(b) One cable box on LT side(secondary side) consisting of four no. porcelain bushing with copper rods, complete with nuts and washers, with cable glands suitable for reception/taking out single core /3.5 core of rated size/ runs of secondary currents, LT 1100 volts grade, PVC/XLPE insulated and PVC sheathed, heavy duty, armoured cables including jointing materials complete. with Bi metallic flexible connectors and copper bus bars of rated capacity with insulators support to be provided.
(c) Conservator with filter type drain valve and oil level gauge.
(d) De-hydrating breather with first fill of dehydrating agent (Silica Gel).
(e) Explosive vent, Thermometer pocket on tank cover, oil level gauge, Oil drain filter valve, Jacking / Lifting lugs, Marshalling 55, with oil filling hole with cap/plug with connection plate complete, Air release valve plug and four no. plain solid cast steel detachable rollers.
(f) One no 100 mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree Celsius with metal guard having maximum perimeter temperature reading indicator with re-setting device.
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Ser. Item No. 4.00 Contd.....
(g) Two earthing terminals on tank cover to facilitate fixing of 50x6mm galvanised iron earth strip for earthing of body.
(h) Rating plate and terminal marking plate. (j) Extra bushing for neutral in the LT cable box for providing independent set of earthing for neutral. (k) First fill of new and unused transformer oil, IS-335 of 1986 marked, filtered and tested up to 50 KV dielectric strength at 2.5 mm air gap between testing electrodes, specific resistance at 27 Degree Celsius Ohm-ohm 500 x 10 the power12, water content 50 PPM, Dielectric dissipation factor (tan Delta at 90 degree Celsius) 0.005, Neutralisation value mg of KOH/gm of oil 0.03, Inter facial tension N/M at 27 Degree Celsius - 0.04, flash point 140 Degree Celsius
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Supply, Installation, Testing and Commissioning of outdoor type transformer as per IS : 1180 part - I, Level-1 step down, copper Cu 99.9% purity, electrolytic grade wound 11KV/433 Volts (at no load) AC 3 phase 50 Hz, 100 KVA capacity, core type, oil immersed naturally air cooled, oil natural air natural (ON/AN) , with external cooling tubes, delta connected on primary side (HV) and star connected on secondary side (LV) in accordance with vector group DYn-11 with neutral brought out on secondary side (LV) and having taping at +5% to -10% in steps of 2.5% on HV side to be changed by means of hand operated off load tap changer gear. The maximum temperature rise should not exceed 50 degree Celsius in oil and 55 degree Celsius in HV/LV winding when measured by resistance method after continuous full load run on an ambient temp of 40 degree Celsius transformer shall be of BOLTLESS core design. Transformer shall be double wound, core type with low loss, non ageing, high permeability CRGO prime core grade M-OH / ZDKH /TCH grade , perfectly insulated and clamped to minimize noise and vibrations.
1
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SER. ITEM No. 5.00 Contd....
The transformer shall be IS/IEC 60076 and as per IS-1180 part - I of 2014 marked. Flux Density at rated voltage and rated frequency should be 1.688 T the transformer shall be designed as per CBIP manual 317 for over-fluxing withstand capacity of 110% continuous, 125% for 1 minute and 140% for 5 seconds. and over loading capacity of transformer shall be as per IS 6600 , Noise level as per NEMA TR1, with class A insulation, Tank pressure, Vacuum withstand capability & minimum clearances as per CBIP manual, No Load Current within 1% to 2% of Full load current Transformer losses shall not exceed the loses mentioned in Table 6 of IS: 1180 of 2014 Part - I with Energy Efficiency Level - 1 and shall comprise of the following accessories :-
(a) One cable box on HT side (Primary side) consisting of three no. porcelain bushing with copper rods, complete with nuts and washer , with cable glands suitable for reception/taking out 3 core 120 /185 , HT 11000 volts grade, XLPE insulated and PVC sheathed, heavy duty , armoured cables including jointing materials complete.
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SER. ITEM No. 5.00 Contd....
(b) One cable box on LT side(secondary side) consisting of four no. porcelain bushing with copper rods, complete with nuts and washers, with cable glands suitable for reception/taking out single core /3.5 core of rated size/ runs of secondary currents, LT 1100 volts grade, PVC/XLPE insulated and PVC sheathed, heavy duty, armoured cables including jointing materials complete. with Bi metallic flexible connectors and copper bus bars of rated capacity with insulators support to be provided.
(c) Conservator with filter type drain valve and oil level gauge.
(d) De-hydrating breather with first fill of dehydrating agent (Silica Gel).
(e) Explosive vent, Thermometer pocket on tank cover, oil level gauge, Oil drain filter valve, Jacking / Lifting lugs, Marshalling 55, with oil filling hole with cap/plug with connection plate complete, Air release valve plug and four no. plain solid cast steel detachable rollers.
(f) One no 100 mm dia, dial type thermometer, vapour pressure type, having range 0-120 degree Celsius with metal guard having maximum perimeter temperature reading indicator with re-setting device.
-
-
-
SER. ITEM No. 5.00 Contd....
(g) Two earthing terminals on tank cover to facilitate fixing of 50x6mm galvanised iron earth strip for earthing of body.
(h) Rating plate and terminal marking plate.
(j) Extra bushing for neutral in the LT cable box for providing independent set of earthing for neutral. (k) First fill of new and unused transformer oil, IS-335 of 1986 marked, filtered and tested up to 50 KV dielectric strength at 2.5 mm air gap between testing electrodes, specific resistance at 27 Degree Celsius Ohm-ohm 500 x 10 the power 12, water content 50 PPM, Dielectric dissipation factor (tan Delta at 90 degree Celsius) 0.005, Neutralisation value mg of KOH/gm of oil 0.03, Inter facial tension N/M at 27 Degree Celsius - 0.04, flash point 140 Degree Celsius
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NOTE FOR SER. ITEM NO. 2.00 TO 5.00 ABOVE :
Prior to dispatch of transformers from factory concerned Engr-In-Charge or his rep will inspect the Transformers and carryout Load Tests at the Factory Premises.
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