T/GSEE 18-2026 Active Group standards

T/GSEE 18-2026 Specification and Technical Requirements For Outdoor Tridimensional Wound Core Dry-type Power Transformers

Publish Date: 2026-04-07 Implement Date: 2026-04-07 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: T/GSEE 18-2026

Standard Type: Group standards

Standard Status: Active

is_force_gb: no

CCS Name: -

ICS Name: Substations, surge arrestors

Publish Date: 2026-04-07

Implement Date: 2026-04-07

Scope

This document specifies the terms and definitions, model description, performance parameters, technical requirements, inspection rules and methods, marking, lifting, installation, transportation, and storage for outdoor three-dimensional coil-wound dry-type power transformers. This document applies to non-excited voltage-regulated outdoor three-dimensional coil-wound dry-type power transformers (hereinafter referred to as "transformers") with a rated capacity of 30kVA or more, a rated frequency of 50Hz, outdoor use, and a core material of electrical steel and amorphous alloy, with voltage levels of 6kV and 10kV. Products with other rated capacities may refer to and use this document for reference. This chapter specifies the terms and definitions, model description, performance parameters, technical requirements, inspection rules and methods, marking, lifting, installation, transportation, and storage for outdoor three-dimensional coil-wound dry-type power transformers. (1) Terms and Definitions This chapter defines three core terms. (2) Model Description This chapter describes the model of outdoor three-dimensional coil-wound dry-type power transformers. (3) Performance Parameters This chapter specifies the performance parameters of outdoor three-dimensional coil-wound dry-type power transformers, including rated capacity, voltage combination, connection group label, no-load loss, load loss, no-load current, and short-circuit impedance, etc. (4) Technical Requirements This chapter specifies the technical requirements for outdoor three-dimensional coil-wound dry-type power transformers, including requirements for sound level, insulation resistance value, temperature rise limit, enclosure protection level, and monitoring devices. (5) Inspection Rules and Methods This chapter specifies the test items and requirements for outdoor three-dimensional coil-wound dry-type power transformers. (6) Marking, Lifting, Installation, Transportation, and St