tender for purchase of electrical lab equipments , single phase transformer - single phase transformer, rating: 1 kva, 50 hz, input: 230 v ac output: 115 v ac type: air-cooled, single-phase step-down transformer properly insulated input and output terminals brought out for safe operation , three phase transformer - type: three phase transformer, rating: 3 kva input voltage: 415 v ac, 3-phase, output voltage: 230 v ac, 3-phase frequency: 50 hz winding material: copper wound insulation class: class b or higher duty: continuous duty suitable for laboratory use bench/floor , load rheostat three phase - rating: 5.25 kw, supply: 415 v ac, 3-phase, 50 hz total number of load steps: 6, main switch to be provided approximate dimensions: 18 × 18 × 22 inches (l × b × h) comprising special cement-insulated electrical load resistors mounted on powder-coated ms panel/enclosure individual on/off rotary switches for load selection mounted on rubber wheels/casters for portability suitable for laboratory load testing applications proper insulation, ventilation, and earthing arrangement to be provided , three phase capacitor bank - 3-phase capacitor bank rating: 2 kvar, voltage: 440 v ac, frequency: 50 hz heavy duty self-healing capacitor units powder coated ms enclosure compact panel mounted/floor mounted construction proper ventilation arrangement to be provided capacitor duty contactor/switch to be provided fuse/mcb protection to be provided discharge resistors to be provided for safety proper earthing arrangement provided , 3 phase auto transformer starter - 3-phase variable autotransformer input: 415 v, output: 0-470 v ac (continuous), current: 15 a copper wound, carbon brush type heavy duty toroidal/core construction mounted in powder coated ms/crca enclosure front panel mounted voltage control knob with scale indication proper insulated terminals provided floor/bench mounted type suitable for laboratory use input/output terminal arrangement provided mcb/fuse protection provided proper earthing terminal provided ventilation arrangement for heat dissipation , transformer oil bdv test kit - transformer oil breakdown voltage (bdv) test set input supply: 230 v ac, single phase, 50 hz output voltage range: 0-60 kv ac suitable for testing dielectric strength of transformer insulating oil oil test cup with standard electrodes transparent safety hood provided over test chamber electrode gap adjustable as per standard testing requirements interlocking safety switch for hood protection automatic tripping protection provided tripping current: 10/20 ma at 2.5 mm electrode gap ht on switch with zero-voltage start facility sample transformer oil to be provided with test kit.