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2026
Analog & Digital Dual Adjustment! Fast, Stable and Accurate Operation for Meter Alignment

Analog & Digital Dual Adjustment! Fast, Stable and Accurate Operation for Meter Alignment

When verifying traditional analog pointer multimeters (such as the common MF47, Model 500, etc.) and new high-precision digital multimeters, metrology verifiers have distinctly different operating habits when adjusting amplitude:Analog Meters: Heavily rely on "tactile feel" — the knob n

2026
How to Measure the Thermal Stability of Epoxy Potting Materials? Preparation Techniques for Polymer Samples

How to Measure the Thermal Stability of Epoxy Potting Materials? Preparation Techniques for Polymer Samples

In the manufacturing of power electronics, high-voltage transformers and current transformers, as well as semiconductor power devices, epoxy resin potting materials serve as core electrical insulation and protective materials, directly determining the lifespan limit of electrical equipment under hig

2026
Why Can't Air Release Be Confused with Anti Foam?

Why Can't Air Release Be Confused with Anti Foam?

Among the quality supervision indicators of power oil, gear lubricant and construction machinery hydraulic oil, "foam characteristics (anti foam performance)" and "air release value" are two analysis items that often appear in parallel on the test report.Since both involve the in

2026
Why Can't the Voltage Tester Be Grounded with a Neutral Wire? Thoroughly Explain the Common Sense of Safety Regulations

Why Can't the Voltage Tester Be Grounded with a Neutral Wire? Thoroughly Explain the Common Sense of Safety Regulations

In the testing procedures for substation maintenance, complete power distribution, and various factory electrical equipment, "reliable and good grounding" is always listed as the primary mandatory safety clause.When reading the safety precautions for the HZGPNET-1KVA/3KV power frequency wi

2026
Why Choose Infrared? Comparison of Infrared and Electrochemical Leak Detection Technologies

Why Choose Infrared? Comparison of Infrared and Electrochemical Leak Detection Technologies

In the procurement list for substation maintenance, the "SF6 leak detector" is a commonly used tool with high frequency. But before purchasing, looking through the technical manuals of various manufacturers, one often sees two major technical routes: "electrochemical principle" a

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