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Before selecting a manufacturer and model, what parameters need to be provided for a 10kV dry-type transformer?

When requesting a quotation from a manufacturer for a 10kV epoxy resin cast dry-type transformer, omitting key parameters often leads to repeated quotations and mismatched models. This article, following the selection logic, sorts out the required items for an inquiry such as voltage level, capacity requirements, installation site, cooling method, and operating conditions, explains why each item affects selection, and, combined with scenarios such as factories, hospitals, airports, and tunnels, provides a preparation checklist before contacting Qindian Zhicheng.

2026-10-20

Before selecting a manufacturer and model, what parameters need to be provided for a 10kV dry-type transformer?

2026-10-20

How to choose a 10kV outdoor vacuum circuit breaker? Who is it suitable for, and who is it not suitable for?

The 10kV outdoor vacuum circuit breaker body is responsible for primary-side switching and protection execution, but four-remote (telemetry, telecontrol, telesignaling, and teleadjustment), 4G communication, and recloser functions are not included in the body by default. This article breaks down the dependency chain item by item according to function—what the controller, communication module, PT, and master station protocol each undertake, which items require separate configuration, and which items require confirmation—and provides configuration boundary wording that can be used directly during inquiries as well as five sets of quotation scopes, helping overseas EPC contractors and switchgear manufacturers clearly define the configuration boundaries in one pass during the selection stage.

2026-10-20

27kV or 38kV? Voltage class and insulation level selection decision tree for high-voltage AC automatic reclosers

Instantaneous faults on overhead lines account for the majority of trips; the value of a recloser lies in turning detection, tripping, and reclosing into a closed loop, reducing the outage time spent waiting for manual closing. The core of selection is not that a higher voltage class is always better, but rather matching the recloser's rated voltage, the system's highest voltage and insulation level, and altitude and pollution corrections as three aligned factors. The following breaks down, according to a four-step decision tree, how the 15 kV, 27 kV, and 38 kV tiers are implemented, and provides a checklist of line and SCADA materials that must be prepared before procurement.