Noticias y Blog

Jul 23, 2026

Gapless vs Gapped Surge Arresters: Selection Considerations for MV Systems

Two structural families cover almost every arrester a medium-voltage buyer will meet. The gapless surge arrester connects its zinc oxide varistor column straight between line...

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Jul 22, 2026

Switch Disconnectors: Isolation Duties, Limits and Specification Questions

A feeder may need to be opened during normal service and then isolated for maintenance. Those are two requirements, and a quotation for an ordinary...

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Jul 22, 2026

Horn Gap vs Rod Gap Arresters: Where Each Design Is Used

Before zinc oxide varistors existed, overhead lines were protected by air itself. A horn gap arrester stretched an arc between two diverging horns until it...

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Jul 21, 2026

Disconnector vs Interruptor de aislamiento: cómo se utilizan los términos en sistemas MV

An enquiry for a disconnector can reach three suppliers and return three different equipment descriptions: isolator, disconnect switch and switch-disconnector. The names overlap in ordinary...

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Jul 21, 2026

Metal-Oxide vs Silicon Carbide Lightning Arresters: A Technical Comparison

Distribution networks that have been in service for several decades usually carry two generations of overvoltage protection side by side. New purchases are almost always...

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20 de julio de 2026

Transformer Surge Arresters: Coordination Questions Before Selection

A transformer surge arrester is not selected from transformer voltage alone. The coordination decision begins at the protected terminals: identify the transformer insulation requirement, the...

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