bids are invited for vcb bottles testing - to assess the healthiness and dielectric strength of vacuum circuitbreaker (vcb) interrupters (vacuum bottles) using standard testequipment to ensure reliability, safety, and compliance with electricalsafety standards. following standards shall be referred for testing-iec 62271-100.high-voltage switchgear and controlgear, is/iec 60934 .testing of vacuum interrupters, oem recommendations. test equipmentshall be of reputed make only. the instrument shall be capable ofmeasuring leakage current in micro amps only, instrument measuringcurrent in milli amps shall not be accepted for testing. resultinterpretation- compare measured values with oem/iec permissiblelimits, categorize each interrupter as healthy / weak / defective,provide recommendation for replacement if any interrupter fails thetest. documentation reporting-record test results for eachinterrupter (contact resistance, timing, leakage current in microa).submit acomprehensive test report highlighting condition, trends, andrecommendations.payment shall be made for testing of 1 set. 1 set of vcb 3 bottles. , vcb testing - vcb testing- ir testing, contact resistance measurement, breaker timing test, coil resistance test. , dcrm_ht vcb - dynamic contact resistance measurement(dcrm) testing of ht vcb , dg_ir_dea_pi - insulation resistance test, di-electric absorption, polarization index testing for dg.payment shall be made per dg , motors winding test - motors winding test ( resistance, inductance and insulation resistance test, di electric absorption, polarization index testing, vibration test).payment shall be made per motor , transformer testing - 1500 kva dry type transformer testing insulation resistance test, polarization test, magnetizing current test, magnetic core balance test, vector group test, winding resistance test using 10a test kit with all tappings, turns ratio) , wti calib_transformer - wti calibration of 1500 kva dry type transformer , tan delta_transforme