partial discharge testing

Caton designs and manufactures custom high-voltage cable assemblies and connectors from 1 kV to 250 kV for defense, semiconductor, aerospace, medical, and scientific systems. Family-owned, US-manufactured, AS9100 / ISO 9001 / ITAR-registered, and engineering-led since 1973, with in-house design, overmolding, and high-voltage test capability.

altitude testing to 70,000 ftconfiguration controlconnector designcorona testingdielectric withstand testingfinite element analysis (Electro V10.2)high-voltage cable assembly designhi-pot testingin-house overmoldinginsulation resistance testingreverse engineeringthermal cycling

Custom Magnetics of California Inc. (CMI) was founded in 2013 by Harbhajan Mand and Chris Cimino and is located in Chino, California. CMI designs and builds specialty power transformers for critical applications, serving data center power systems and the US Navy. Its quality system is certified to ISO2001:2015 with CSA files up to 2500 kVA and 13.8 kV, and it has 11 years of experience with a team of 35 experts.

airborne and structure-borne noise testingbasic impulse testing up to 200 kVmachining manufacturingroutine production testingtesting at frequencies from 40 Hz to 600 Hzthermal managementtransformer designtransformer manufacturingvacuum impregnation

Diversified Power Services is a Women Owned Small Business that provides electrical testing, maintenance and commissioning services. Its staff performs Commissioning & Acceptance Testing Services, Predictive & Preventative Maintenance Programs, Hazard Analysis & Safety Training, Asset Management and Emergency Services. The company serves power producers, transmission companies, utilities, and large industrial and commercial customers.

arc flash analysisasset managementCommissioning & Acceptance Testingelectrical safety trainingemergency serviceshazard analysispower system studiesPredictive & Preventative Maintenance

Doble Engineering Company supports clients in the electric power industry to improve operations and optimize system performance, offering diagnostic test equipment, software, and services for checking relay schemes, evaluating insulation condition, and assessing risk across transformer fleets. The company provides condition monitoring, electrical test instruments, high power test systems, partial discharge testing, protection testing, and laboratory services. Doble is an ESCO Technologies Company and is ISO 9001, ISO/IEC 17025, and 17034 certified.

calibration and maintenancecondition monitoringfield testingforensic analysisHV insulating lab testingonline partial discharge testingprotection testingtraining

Electrom Instruments specializes in motor testers and winding analyzers, including the iTIG surge tester and winding analyzer, which performs over 20 non-destructive high-voltage and low-voltage tests and measurements such as high frequency surge and partial discharge. The company also offers portable Power Packs (18kV-40kV), Production Line Test Automation systems, calibration kits, and DC motor test accessories, with lifetime support for its instruments.

automatic testing sequencescalibrationcapacitance measurementDC hipot testingimpedance measurementinductance measurementinsulation resistance measurementproduction line test automationsurge testingtest reportingwinding resistance measurement

HV TECHNOLOGIES, Inc. (HVT), founded in 1998 in Manassas, Virginia, is a supplier of High Voltage (HV) and Electromagnetic Compatibility (EMC) test equipment. It serves the power utility, power apparatus, and electronic equipment industries, and is ISO 9001:2015 registered and A2LA-accredited to ISO 17025:2017. It has locations in Manassas, Virginia, USA, and Zeiningen, Switzerland.

calibrationEMC testingimpulse testinginstallation and commissioningrepairstrainingupgrades/modernizations