Skip to content

Electrical Test and Measurement Equipment

Measure EHV Circuit Breaker Contact Resistance with Vanguard TRM-403

vanguard_trm_-403A three phase transformer winding resistance meter, the Vanguard TRM-403 Transformer Resistance Meter can accurately measure resistance from 1 micro-ohm to 500 Ohms, it can be used as a micro-ohm meter to measure EHV circuit breaker contact resistance, or for any low resistance measuring application.

The Vanguard TRM-403 Transformer Resistance Meter can perform a special test to collect data automatically for up to 90 minutes (at 60-second sampling intervals) or 45 minutes (at 30 second sampling intervals). The test data is recorded with a time stamp. All test results can be printed on the unit’s built-in 2.5” wide thermal printer.

Read More »Measure EHV Circuit Breaker Contact Resistance with Vanguard TRM-403

Reliable Secondary Injection Testing with Utility Relay Co. Test Sets

For checking circuit breaker and protective relay systems, a secondary injection test set is the main piece of electrical test equipment to use. It differs from the standard primary injection testing method in that there is no current flowing and contacts remain closed during the testing process.

Read More »Reliable Secondary Injection Testing with Utility Relay Co. Test Sets

Vanguard LTCA-40 Load Tap Changer Analyzer Capable of Outputting 40A

Vanguard-ltca-40For measuring winding resistance of highly inductive power transformers consider the Vanguard LTCA-40 Load Tap Changer Analyzer.

Triple resistance-reading channels allow the Vanguard LTCA-40 Load Tap Changer Analyzer to measure three winding resistances simultaneously. Four-wire (Kelvin) connections provide high accuracy and require no lead compensation. A special feature of the Vanguard LTCA-40 is its ability to measure and graph the resistance trace of a transformer LTC during operation. Using a 60Vdc power supply, the Vanguard LTCA-40 is capable of outputting 40 amperes.

Read More »Vanguard LTCA-40 Load Tap Changer Analyzer Capable of Outputting 40A

With the Astro-Med TMX-18 Review and Post Processing Without Down Time

AAstro-Med TMX-18 High-Speed Data Acquisition SystemThe Astro-Med TMX-18 High-Speed Data Acquisition System provides low speed trending while simultaneously monitoring and storing highly sampled time synchronized transients or events. 

QuickLook
The innovative QuickLook feature calculates compression and expansion factors while recording data allowing you to review GBytes of data in seconds and scan through large data files quickly and easily.

Read More »With the Astro-Med TMX-18 Review and Post Processing Without Down Time

Survey Equipment Before or After Planned Maintenance with the Fluke 810

Fluke 810 Vibration Tester Primarily used for troubleshooting problem equipment, the Fluke 810 Vibration Tester can be used to survey equipment before or after planned maintenance.

The combination of diagnoses, severity and possible repair recommendations help you make more informed maintenance decisions and address critical problems first.

Read More »Survey Equipment Before or After Planned Maintenance with the Fluke 810

Protec Offers The Equipment You Need for Proper AC/DC Testing

AC testing gives a charging current that is extremely large compared to other types of testing. AC frequently is used for high-potential testing; voltage is increased to some specified point to see if the insulation can stand that particular voltage. It is a GO/NO-GO type of test and can cause deterioration of the insulation, in contrast to a DC test which is basically non-destructive.

Read More »Protec Offers The Equipment You Need for Proper AC/DC Testing

For Dielectric Absorption Test Equipment Rely On Protec

The ratio of two time-resistance readings (such as a 60-second reading divided by a 30-second reading) is called a dielectric absorption ratio. It is useful in recording information about insulation. If the ratio is a 10-minute reading divided by a 1-minute reading, the value is called the polarization index.

Read More »For Dielectric Absorption Test Equipment Rely On Protec