Power Equipment Blog

Buyer Guides

Practical Selection Guides for Power Distribution Buyers

These articles support real procurement questions: how to choose the right transformer, substation, switchgear, RMU, or LV cabinet before asking for quotation.

Incoming vs Outgoing Switchgear Panel - Jinxing Electric
Medium Voltage Switchgear Guides

Incoming vs Outgoing Switchgear Panel

An incoming panel receives power from a source or upstream feeder, while an outgoing panel supplies a downstream feeder or load. The actual equipment and protection still depend on voltage, current, fault level, source arrangement, feeder duty, metering, interlocks, and the single-line diagram. Review the buyer checklist and matching Jinxing product pages.

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KYN28 Switchgear Maintenance Checklist - Jinxing Electric
Medium Voltage Switchgear Guides

KYN28 Switchgear Maintenance Checklist

KYN switchgear maintenance should follow the approved manual and safety procedure, with planned isolation, visual inspection, cleaning, mechanism checks, primary and secondary connection checks, interlock verification, relay testing, insulation assessment, and maintenance records. Review the buyer checklist and matching Jinxing product pages.

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Compact Substation Ventilation Checklist - Jinxing Electric
Substation Procurement Guides

Compact Substation Ventilation Checklist

Compact-substation ventilation should be checked against transformer and switchgear heat losses, ambient temperature, solar gain, enclosure volume, airflow path, dust and rain protection, equipment clearances, noise, and maintenance. Final thermal design belongs in the approved package drawings. Review the buyer checklist and matching Jinxing product pages.

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Compact Substation Cable Entry and Layout Guide - Jinxing Electric
Substation Procurement Guides

Compact Substation Cable Entry and Layout Guide

Compact-substation cable entry must be coordinated before the enclosure drawing is frozen. Confirm trench or above-ground entry, cable sizes and quantities, bend radius, gland plates, termination points, phase arrangement, segregation, drainage, sealing, and maintenance access. Review the buyer checklist and matching Jinxing product pages.

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YB Prefabricated Substation Installation Checklist - Jinxing Electric
Substation Procurement Guides

YB Prefabricated Substation Installation Checklist

YB substation installation should coordinate the package boundary, foundation, lifting and positioning, MV and LV cables, earthing, ventilation, protection and control interfaces, auxiliary supply, weather sealing, pre-energization inspection, and site acceptance records. Review the buyer checklist and matching Jinxing product pages.

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Compact Substation Foundation Design Checklist - Jinxing Electric
Substation Procurement Guides

Compact Substation Foundation Design Checklist

A compact-substation foundation should be coordinated with the approved package dimensions, operating and transport loads, cable trenches and openings, drainage, flood level, ventilation path, earthing, oil containment where applicable, door clearance, maintenance access, and local civil requirements. Review the buyer checklist and matching Jinxing product pages.

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Single-Phase Transformer Sizing Guide - Jinxing Electric
Oil-Immersed Transformer Guides

Single-Phase Transformer Sizing Guide

Size a single-phase transformer from continuous and intermittent load, starting current, diversity, power factor, voltage regulation, harmonics, future margin, installation environment, and protection. Confirm the actual duty rather than applying one fixed oversizing percentage. Review the buyer checklist and matching Jinxing product pages.

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Transformer Transport and Storage Checklist - Jinxing Electric
Transformer Selection Guides

Transformer Transport and Storage Checklist

Transformer transport and storage planning should cover dimensions and mass, lifting points, shipping orientation, shock or tilt monitoring when required, moisture protection, accessory packing, oil or dry-type preservation, site unloading, foundation readiness, storage inspections, and pre-energization checks. Review the buyer checklist and matching Jinxing product pages.

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Oil-Immersed Transformer Accessories Checklist - Jinxing Electric
Oil-Immersed Transformer Guides

Oil-Immersed Transformer Accessories Checklist

Oil-immersed transformer accessories should be defined from the rating and operating duty, protection philosophy, cooling arrangement, tapping method, oil monitoring, terminal interfaces, marshalling and control needs, site environment, maintenance policy, and required alarms or contacts. Review the buyer checklist and matching Jinxing product pages.

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66kV Dry-Type Transformer RFQ Guide - Jinxing Electric
Dry-Type Transformer Guides

66kV Dry-Type Transformer RFQ Guide

A 66kV dry-type transformer RFQ should include the network single-line diagram, capacity, voltage ratio, frequency, vector group, impedance, tapping, insulation requirements, cooling and enclosure, site conditions, protection interfaces, tests, and document expectations. Review the buyer checklist and matching Jinxing product pages.

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SCB11 Dry-Type Transformer Installation Checklist - Jinxing Electric
Dry-Type Transformer Guides

SCB11 Dry-Type Transformer Installation Checklist

SCB11 installation planning should confirm foundation and lifting, room clearance, ventilation, enclosure, HV/LV termination, earthing, temperature monitoring, protection interfaces, cleanliness, pre-energization inspection, and the approved supplier drawings. Review the buyer checklist and matching Jinxing product pages.

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Dry-Type Transformer Enclosure Selection Guide - Jinxing Electric
Dry-Type Transformer Guides

Dry-Type Transformer Enclosure Selection Guide

A dry-type transformer enclosure should be selected from access protection, dust and moisture exposure, ventilation, heat rejection, cable entry, room clearance, fire strategy, and maintenance needs. A higher enclosure rating is not automatically better if it restricts cooling. Review the buyer checklist and matching Jinxing product pages.

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Transformer Factory Acceptance Test Checklist - Jinxing Electric
Transformer Selection Guides

Transformer Factory Acceptance Test Checklist

A transformer FAT plan should connect the approved drawings and specification to agreed routine tests, any witnessed or special tests, calibrated instruments, acceptance criteria, report format, nameplate review, accessory checks, and packing inspection. Review the buyer checklist and matching Jinxing product pages.

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Transformer Selection for Coastal and Humid Sites - Jinxing Electric
Transformer Selection Guides

Transformer Selection for Coastal and Humid Sites

For coastal or humid service, confirm salt contamination, humidity, condensation, corrosion category, enclosure and coating expectations, bushing and terminal protection, ventilation, maintenance access, and packaging. The site environment should be part of the quotation scope. Review the buyer checklist and matching Jinxing product pages.

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Transformer Selection for High-Altitude Sites - Jinxing Electric
Transformer Selection Guides

Transformer Selection for High-Altitude Sites

High altitude can affect cooling and external insulation performance, so the project altitude, ambient range, pollution level, loading, clearances, enclosure, and applicable derating rules must be stated in the RFQ. Final ratings require supplier confirmation. Review the buyer checklist and matching Jinxing product pages.

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Transformer Selection for Solar Power Plants - Jinxing Electric
Transformer Selection Guides

Transformer Selection for Solar Power Plants

Solar-project transformer selection depends on inverter output, block capacity, voltage ratio, harmonics, cyclic loading, losses, ambient conditions, grid-code requirements, protection, and the MV collection architecture. Send the plant single-line diagram before final selection. Review the buyer checklist and matching Jinxing product pages.

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