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Manufacturer:
Vanguard
Vanguard Instruments offers a wide range of diagnostic test equipment that accurately and efficiently measures the
health of critical substation equipment
, such as transformers, circuit breakers, and protective relays. Vanguard's first product was a computerized, extra high voltage (EHV) circuit breaker analyzer, which became the forerunner of an entire line of EHV circuit breaker test equipment. Over the years, Vanguard's portfolio has grown tremendously to include microcomputer-based precision micro-ohmmeters; single- and three-phase transformer winding turns-ratio testers; transformer winding-resistance meters; mega-ohm resistance meters; and a variety of other application-specific products.
Vanguard instruments are rugged, reliable, accurate, and user friendly. They eliminate tedious and time-consuming operations, while providing fast, complex test-result calculations. Using Vanguard equipment helps reduce errors and eliminates the need to memorize long sequences of procedural steps. In 2017, Vanguard Instruments became a part of Doble Engineering Company, an energy industry leader in hardware, software, and services that diagnose and monitor the health of critical assets.
Filter Products
Vanguard EZCT 2000A Current Transformer Test Set
The Vanguard EZCT 2000A Current Transformer Test Set is a transformer testing device that completes a variety of tests with a user-friendly interface. The microprocessor-based current unit performs tests that include excitation...
Vanguard VBT-75P-S2 Vacuum Bottle Tester
The Vanguard VBT-75P-S2 is a vacuum bottle tester that uses automatic testing with a voltage range of 10 kV ¬ 75 kV DC and an output in 1 kV steps. This portable, microprocessor-based device allows technicians to run...
Vanguard CT-8000 S3 Micro Ohmmeter
The Vanguard CT-8000-S3 Micro Ohmmeter tests circuit-breaker contact resistance and detects low-resistance measurements. The device includes voltage monitoring channels, contact timing input channels, and breaker initiate...
Vanguard TRM-40 Amp Winding Resistance Meter
The Vanguard TRM-40 Amp Winding Resistance Meter measures DC resistance values for transformer windings and inductive devices. This third-generation transformer measures two windings: primary and secondary. Internal test record...
Vanguard DMOM-200 S3 True DC Digital Micro-Ohmmeter
The Vanguard DMOM-200 S3 True DC Digital Micro-Ohmmeter is a circuit-breaker tester that analyzes contact resistances of the EHV circuit-breaker. This ohmmeter measures resistances ranging from 1µΩ to 5 Ω. The...
Vanguard Tri-Phase True Three Phase Automatic TTR
The Vanguard Tri-Phase True Three Phase Automatic TTR efficiently generates voltage to test and measure turns-ratios. This transformer turns-ratio tester can find any transformer type. Using the thermal printer output...
Vanguard ATRT-01S3 Single phase TTR
The Vanguard ATRT-01S3 Single phase TTR is an automatic transformer turns-ratio tester. This fourth-generation portable device uses the IEEE C57.12.90 measuring method and line power. The Single phase TTR allows...
Vanguard WRM-40 Winding Resistance Ohmmeter
The Vanguard WRM-40 Winding Resistance Ohmmeter is designed to accurately measure the winding resistance of highly inductive power transformers. The unit’s dual resistance-reading input channels can measure two winding...
Vanguard WRM-10 Winding Resistance Ohmmeter
The Vanguard WRM-10 Winding Resistance Ohmmeter is designed to accurately measure the winding resistance of highly inductive power transformers. The unit’s dual resistance-reading input channels can measure two winding...
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Vanguard UPS-S2 Portable AC/DC Power Supply
The Vanguard Universal Power Supply S2 (UPS S2) is designed to meet a utility company’s substation needs for an independent AC/DC power source. The UPS S2’s AC and DC voltage sources can each supply up to 10 amperes...
Vanguard TRM-403 Transformer Winding Resistance Meter
The Vanguard TRM-403 is a three phase transformer winding resistance meter that allow the user to connect all test cables to the transformer bushings. The unit will then measure the transformer resistance value for each of the...
Vanguard EZCT-2000C Current Transformer Test Set
The EZCT-2000C is Vanguard’s third-generation microprocessor- based current transformer test set. Designed specifically for CT testing, the EZCT-2000C has the following outstanding features that can greatly increase...
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Vanguard EZCT Current Transformer Tester
The Vanguard EZCT is a microprocessor-based, current-transformer test set. This rugged and portable test set can perform the current transformer (CT) excitation, CT current-ratio, and winding polarity tests. Current...
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Vanguard CT-7500 S2 Circuit Breaker Analyzer
The Vanguard CT-7500 S2 Circuit Breaker Analyzer is an easy to use, stand alone or computer-controlled, microprocessor driven EHV circuit breaker analyzer. It can operate either in Time Travel analyzer mode or in “on-line...
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Vanguard CT-7000 S3 Digital Circuit Breaker Analyzer
The Vanguard CT-7000 S3 Digital Circuit Breaker Analyzer diagnoses circuit breaker performance within timing windows of 1, 10, or 20 seconds through 3 or 6 dry contact timing channels. Vanguard CT-7000 S3 test systems measure...
Vanguard Auto-Ohm 200 S3 DC Micro-Ohmmeter
The Vanguard Auto-Ohm-200 S3 is a microprocessor-based, true DC micro-ohmmeter. It is designed for testing EHV circuit-breaker contact resistances, bushing contact joints, welding joints, or for any low-resistance measuring...
Vanguard ATRT-03 S2 TTR Three Phase Transformer Turns Ratio Tester
The Vanguard ATRT-03 S2 Three Phase TTR is a thorough testing device that provides precise analysis on a transformer turns ratio, which makes this three-phase transformer incredibly useful. This microprocessor-based...
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Vanguard ATRT-01B S2 TTR Transformer Turns Ratio Tester
The Vanguard ATRT-01B S2 is Vanguard’s third-generation micro-processor-based, single-phase, automatic, transformer-turns-ratio tester. The ATRT-01B S2 is ac-line or rechargeable-battery powered. The ATRT-01B S2 is...
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Circuit Breaker Test Equipment
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