Tender For supply of portable single operated rectifier type conventional dc annual rate contract welding set-600 ampere capacity suitable for manual annual rate contract welding process with warranty/guarantee and test certificate. technical specification as given below: 1. maximum hand welding current @ 60% duty cycle ; 600a and minimum hand welding current @60% duty cycle: 120 a 2. open circuit voltage : 70v (max) and operating annual rate contract voltage: 25-44 volt. 3. 3-phase 50 hz, rated input voltage: 3 tapings- 380/415/440 volts. 4. type of cooling : forced air cooled -heavy duty exhaust fan with copper windings, metal body and fan blades. 5. class of insulation and winding materials : class h insulation with both primary and secondary copper windings. 6. specification to which it conform : is 4559- latest version. 7. type of rectifier- silicon diode. full wave 3-phase bridge rectifier: type with current regulator, safety norms: earth fault facility & vrd facility.
Tender For supply of relay over load for silicon rectifier (qrsi) di type conforming to clw specification clw/es/r- 27/alt-z or latest.relay no voltage (q30) du type conformiming to clw specification no. clw es/r-27/alt z or latest, m/s autometers alliance ltd., part no.ka210013r0026 or similar
Tender For supply of dc damping panel complete for uprated silicon rectifier as per rdso specn. no elrs/spec/rsi/0030 (rev.o) amd.no. 3 dtd 06.08.2008,with rdso approved capacitor make m/s ge type 61l281 or 97f8217,icar italy msr 25d-22-50 (22mfd 550v),yash capacitor- nasik ye-001 (25 mfd 660 volt) advance/mysore aspar-15(25 mfd 660 volt) conforming to is 13648 or equivalent msr to suit wag7/wap4 conventional electric locos. [ warranty period: 30 months after the date of delivery ]
Tender For supply of silicon rectifier blower with motor (mvsi). kw 2.2, hp-3.0 , voltage 290-500 v., 3 phase rpm 2950, 50 hz, insulation class h , as per clw spec. clw/es/b-14/c or latest.