Shijiazhuang Handi Technology Co., Ltd. is committed to the research, development, production, and sales of electrical testing instruments.
Over 30 years of expertise in electrical testing instruments.
Simple in design, powerful in performance.
Reliable after-sales service you can trust.
PB Series high-frequency power supply for circuit breakers. It provides power for circuit ···
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PB Series is a high-frequency power supply designed for circuit breaker applications. It p···
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As distribution networks carry heavier loads, overheating risk increases; regular contact ···
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Handheld structure for easy carrying. Suitable for practical use where portability is requ···
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As distribution networks carry heavier loads, regular checks of contact resistance help de···
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Measure the resistance of circuit breaker contacts, switchgear contacts, and bus-bar joint···
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Measure the resistance of circuit breaker contacts, switchgear contacts, and bus-bar joint···
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Switchgear are key components in electrical power transmission and distribution systems, w···
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Shijiazhuang Handy Technology Co., Ltd. is committed to the research and development, production, and sales of electrical testing instruments. The instrument has established a good reputation among users for its easy operation, practical functions, and reliable quality. Make the enterprise an important manufacturer of domestic high-voltage switches, relay protection, and high-voltage testing instruments.
The company's products are now widely used in large enterprises such as domestic power systems, high-voltage switch production plants, railways, petrochemicals, and steel. The company focuses on developing the domestic market while also timely exploring the foreign market, and has now exported to South Korea, Southeast Asia, the Middle East, South America, Africa and other places.
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With the continuous growth of global electricity demand and the rapid expansion of power infrastructure, ensuring the safe, efficient, and reliable operation of...
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Substations are critical components of modern power systems, responsible for voltage transformation, power distribution, monitoring, and protection. The safe an...
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High-voltage electrical equipment operates under complex conditions for long periods. Without effective monitoring and preventive maintenance, hidden risks may ...
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2026-10-23
When a high-voltage circuit breaker fails to operate within milliseconds, the resultin···
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Tel: +86 311 68021321
Email: [email protected]
Add: No.95 Qilian street, block B, 22F, High-tech Zone，Shijiazhuang City, China
