JHM Electric Solutions co.,Ltd
Power Transformer
Transformer Inspection
Insulation Resistance
Polarization Index
Insulation Dissipation Factor ( DF ) / Power Factor ( PF )
Winding Resistance Measurement
Voltage Ratio Test
Transformer Short Circuit Impedance Measurement
Vector Group Test
Oil Analysis ( DGA , Dielectric Breakdown )
Frequency Response Measurement / Analysis
Dielectric Response Measurement / Analysis
Partial Discharge Measurement / Analysis
Functional Check
Generator
Generator Inspection
Insulation Resistance
Polarization Index
Insulation Dissipation Factor ( DF ) / Tip Up Test
Winding Resistance Measurement ( Rotor / Stator)
Testing Excitation Transformer
Testing / Inspection Excitation System
Current Transformer
Current Transformer Inspection
Insulation Resistance
Insulation Dissipation Factor ( DF ) / Power Factor ( PF )
Winding Resistance Measurement
Current Ratio / Turn Ration Test
Knee Point Voltage Measurement
CT Burden Measurement
Dielectric Response Measurement / Analysis
Current Loop Check
Voltage Transformer (VT)& Coupling Capacitor Voltage Transformer (CCVT)
General Inspection
Insulation Resistance
Insulation Dissipation Factor ( DF ) / Power Factor ( Pf )
Winding Resistance Measurement
Voltage Ratio Test
Partial Discharge Measurement / Analysis
Voltage Loop Check
Power Circuit Breaker, Switchgear, MDB, VCB, ACB
General Inspection
Insulation Dissipation Factor ( DF ) / Power Factor ( PF )
Power Loss
Timing Test
Contact Resistance
Functional Check
Motor And Control System
General Inspection
Insulation Dissipation Factor ( DF ) / Power Factor ( PF )
Winding Resistance Measurement
Functional Check For Start-Up System
Battery, Battery Charger And UPS System
General Inspection
Voltage Measurement
Load Test
Ripple Measurement
Charger Performances Test
UPS Functional Check
Power Cable
Insulation Dissipation Factor ( DF ) / Power Factor ( PF )
DC Withstand
VLF
Partial Discharge ( PD )
Protection Relay
Relay Configuration & Customized Service Setting
Relay Individual Test
Service Setting Test
Functional Testing