T/GEIA 14-2021 Guidelines for Testing Chinese-Style Box-type Substations

Scope

Main Technical Content: 1 Scope 2 Normative Reference Documents 3 Terms and Definitions 4 Normal and Special Use Conditions 4.1 Normal Use Conditions 4.1.1 Overview 4.1.2 Indoor Switching and Control Equipment 4.1.3 Outdoor Switching and Control Equipment 4.2 Special Use Conditions 4.2.1 Overview 4.2.2 Altitude 4.2.3 Pollution 4.2.4 Others 5 Test Items 6 General Inspections 6.1 The main and auxiliary circuits are wired correctly and safely. 6.2 The nameplates, symbols, and markings of the device are correct, clear, and complete, and the installation location is correct. 6.3 The opening, closing, and interlocking of the cabinet doors should be flexible and reliable. 6.4 The grounding loop should be reliable and safe. 6.5 The actual measured dimensions meet the requirements of the drawings. 6.6 Suitable protective measures should be provided for the heat dissipation part of the oil tank to prevent the public from accidentally touching or damaging it. 6.7 Safety warning signs should be placed on the cabinet doors and the heat dissipation part of the oil tank. 7 Oil Tank Sealing Test 8 Winding Resistance Measurement 9 Voltage Ratio Measurement and Connection Group Identification Check 10 No-load Loss and No-load Current Measurement 11 No-load Current Harmonic Measurement 12 Short-circuit Impedance and Load Loss Measurement 13 Winding-to-Ground Insulation Resistance Measurement 14 Insulation Fluid Test 15 Three-Phase Transformer Zero-sequence Impedance Measurement 16 Insulation Level Test 17 Temperature Rise Test Verification for Huashi Box-type Substations 18 Pressure Deformation Test 19 Rated Current Peak Test for High- and Low-Voltage Connection Lines and Grounding Loops 19.1 High-Voltage and Low-Voltage Connection Lines 19.2 Grounding Loops 20 Protection Level Verification Test 21 Mechanical Stress Resistance Test

Development Information

Related Standards