Juhonkia continues to introduce new innovations in the field of ring main switchgears. The ring main switchgears series products achieve full coverage of voltage levels and different insulation media products. It is the first domestic enterprise to simultaneously complete the R&D, manufacturing, network access testing and batch supply of standardized and customized SF6 gas insulated, solid insulated, environmentally friendly gas insulated, atmospheric air insulated ring main units and primary and secondary integrated ring main boxes.
2026-09-03 00:10:24
How to Select the Rated Current and Short-Circuit Capacity of LV SwitchgearSelecting the correct switchgear rating is easier when we follow a controlled engineering process: calculate the design current, apply derating factors, determine the prospective short-circuit current, and verify the assembly against IEC 61439. In this guide, I explain How to Select the Rated Current and Short-Circuit Capacity of LV Switchgear so that you can avoid nuisance tripping, overheating,
2026-09-03 00:10:26
Why Buy Authorized Switchgear for International Power Projects?When a substation is being built across a border, an authorized switchgear supplier for international power projects can determine whether the equipment passes inspection, arrives with the correct documents, and operates safely after energization. Developers often face mismatched voltage standards, uncertain warranty coverage, customs delays, unavailable spare parts, and local contractors who
2026-09-02 00:09:17
How to Select a Pole-Mounted Circuit Breaker for Distribution NetworksTo select a pole-mounted circuit breaker for distribution networks, match the system voltage, continuous current, short-circuit duty, insulation level, protection scheme, operating environment, and utility standards before comparing manufacturers. For an outdoor pole-mounted vacuum circuit breaker, verify the vacuum interrupter rating, CT accuracy, recloser functions, and communications protocol.
2026-09-02 00:08:45
European vs American Type Prefabricated Substations: What Are the Differences?Choosing between a European type and an American type prefabricated substation affects installation time, safety, maintenance, fault response, land use, and total ownership cost. The right choice depends on the distribution voltage, transformer arrangement, protection scheme, environmental conditions, and local electrical code.
2026-09-01 00:09:32
How to Select Circuit Breakers and Protection Relays for Metal Clad SwitchgearTo select circuit breakers and protection relays for metal-clad switchgear, start with the calculated fault current, system voltage, insulation level, grounding method, load profile, and required coordination time—not with a catalog rating. This guide explains how to select a vacuum circuit breaker, configure overcurrent protection, verify CT saturation, and specify IEC 62271-200 or
