SI Unit - Static Inverter Unit - Few Details given below (old data)!
25.Static Inverter for Electric locos:
Conventional electric locos employed an on board Arno converter to provide 415 volts, 120 kVA three-phase supply for auxiliary requirement. Rotary Arno converter, with poor reliability and efficiency, is an obsolete design now as its unbalanced output supply leads to higher failure of auxiliary...
more... machines.
These problems have been successfully overcome with the deployment of static inverter which gives a balanced output and are energy efficient thereby making the replacement financially viable. CLW has cut-in 100% provision of SI units from 2004-05 and Board have already given instructions to Zonal Railways to stop purchase of Arno converters for replacement purpose.
It is proposed to provide 100 Static Inverters to replace those Arno converters which have outlived their codal life @ Rs. 30 lakh per loco chargeable to DRF at an anticipated cost of Rs. 30 Crore for inclusion in RSP 2009-10.
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25. Electric locos ke liye Static Inverter:
Prachin electric locos mein on board Arno converter istemal kiya jata tha, jo auxiliary requirement ke liye 415 volts, 120 kVA three-phase supply pradan karta tha. Rotary Arno converter, jiski kharab reliability aur efficiency thi, ab obsolete design hai kyunki uski unbalanced output supply se auxiliary machines ki adhik kharabi hoti thi.
Ye problems static inverter ke deployment se safalatapoorvak door ki gayi hai, jo ek balanced output deta hai aur energy efficient hai, jisse replacement financially viable banta hai. CLW ne 2004-05 se 100% SI units ka provision kiya hai aur Board ne Zonal Railways ko Arno converters ke replacement ke liye purchase karna band karne ke liye instructions de di hai.
Suggested hai 100 Static Inverters provide karne ka, jisse purane Arno converters ko replace kiya ja sake, jo apni codal life puri kar chuke hain, drf se chargeable hain aur ek ummeed hai ke iska lagbhag kharch Rs. 30 Crore hoga RSP 2009-10 mein shamil hone ke liye.
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