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Jul 15 2026

Which Is More Reliable Between Linear Power Amplifiers and Switch Type Power Amplifiers for Relay Protection Testers?

When buying a relay protection tester, salespeople often mention "linear power amplifier" or "switch type power amplifier". Most engineers are confused and do not know how much impact this parameter has on actual testing. HZJB-1200 insists on using high fidelity linear amplifiers

Jul 13 2026

There Are Four Triggering Methods for the High-Voltage Switch Characteristic Tester. Which One Should Be Used on Site?

HZC-4080 provides four triggering modes: internal power supply triggering, external power supply triggering, auxiliary contact triggering, and sensor triggering (manual switch). Many engineers only found out on site that the "trigger method" was not selected correctly, either the switch di

Jul 09 2026

Which Method Should Be Chosen for on Load Tap Changers with or Without Winding Testing?

HZYA-3Z supports two testing methods: with winding testing and without winding (directly on the tap changer terminal) testing. Both methods can measure transition waveforms and various parameters, but the applicable scenarios and precautions are different.Test with winding: closer to actual working

Jul 08 2026

Which of the Four Current Levels, 100A, 80A, 50A, And 30A, Should Be Selected for Circuit Resistance Testing?

The HZ-5100S provides four output current levels, each corresponding to a different measurement range. Different gears are not randomly selected. Choosing the right gear may result in higher measurement accuracy and more reliable results. Choosing the wrong gear may cause range exceeding or data dis

Jul 06 2026

There Are Three Measurement Methods for Hz-20a, Which One Should Be Chosen on Site?

When conducting live testing of lightning arresters, many engineers have found that there are three measurement options for HZ-20A: wired, wireless, and no PT. Different measurement methods have different wiring, accuracy, and applicable scenarios, and it is easy to encounter problems if they are no

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News

Which Is More Reliable Between Linear Power Amplifiers and Switch Type Power Amplifiers for Relay Protection Testers?

There Are Four Triggering Methods for the High-Voltage Switch Characteristic Tester. Which One Should Be Used on Site?

Which Method Should Be Chosen for on Load Tap Changers with or Without Winding Testing?

Which of the Four Current Levels, 100A, 80A, 50A, And 30A, Should Be Selected for Circuit Resistance Testing?

There Are Three Measurement Methods for Hz-20a, Which One Should Be Chosen on Site?

Huazheng Electric Manufacturing (Baoding) Co., Ltd.

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