procurement of lv and hv side bushing for vfd transformer under emiph ii department sgtpp wbpdcl , procurement of lv & hv side bushing for vfd transformer under emiph-ii department sgtpp / wbpdcl , bushing for crawler dozer bd-355 beml ( hv bushing (porcelain), 12-17.5 kv, 250 amps, minimum creepage distance: 545 mm, with metal part (brass), size: m-12, as per is- 2099 and 3347/8603 (ref . drawing no> ames/ bhel/ pcb/ 3250/ 002 & ames/ bhel/ bushing/ 3250/ 009. metal part (brass) shall be silver coated as per standard thickness. following tests must be carried out as per is: 2099 - 1) dry power frequency voltage withstand test 2) impulse voltage withstand test ) , bushing,part no:0717709035/csb0209035 ( lv bushing (porcelain), 3.6 kv, 1000 amps, minimum creepage distance: 111.6 mm, with metal part (brass) 3.6 kv/1000 a. size: m-30,as per is- 2099 and 3347/8603 (ref . drawing no> ames/ bhel/ scb/ 3250/ 003 & ames/ bhel/ bushing/ 3250/ 009) metal part (brass) shall be silver coated as per standard thickness. following tests must be carried out as per is: 2099 - 1) dry power frequency voltage withstand test 2) impulse voltage withstand test ) , flexible copper jumper ( copper flat (50 x 10 mm) - (ref . drawing no> ames/ bhel/ scb/ 3250/ 003) metal part shall be silver coated as per standard thickness. ) , tpis (tap position indicator switch) ctr make oltc eq-16 ctr ctr make oltc eq-16 tpis (tap position indicator switch for remote tap indication) ( off-circuit tap-changing switch, hsv: 11 kv, rated current: 150 a, operating position: 5, no. of deck: 3, 3-phase, make: abhishek en terprises, meerut or equivalent ) => limited