Our Subsidiaries
OSA Valve Services Pte Ltd
 PT SWTS Indonesia
MARC (Thailand) Co. Ltd
 GuangTong Machinery Engineering Co.
Our Knowledge Base



 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
   
 



Quality Service and Quick Turnaround are
The Keys to Our Success



• High Potential (AC)
  0-75kV AC, 0-10A AC output
  0-50kV AC, 0-20A AC output
  0-100kV AC, 0-100mA AC output
• Partial Discharge Measurement -PDM03 and Robinson Test Set
• Insulation Tangent Delta/Loss Angle Measurement
• Insulation Capacitance Measurement
• Megger Test & Polarization Index Measurement
• Circuit Breaker Operation Timing Measurement
• Contact Resistance Measurement
• Phase Angle Measurement of Voltage and Current
• Power Quality Measurement including Harmonics and Waveform Capture
• Secondary Current Injection
• Primary Current Injection Test up to 60,000A
• Variable Frequency Injection
• Variable Phase Angle for Voltage and Current Injection
• Infrared/Thermographic Detection
• Cable Fault Location
• Low Frequency AC High Potential Test for Cable
• Transformer Turns Ratio
• Winding Resistance
• Transformer Oil Testing