GB/T 24844-2018Technical specification for oil-immersed shunt reactor of 1000kV AC system (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB /Z 24844-2009 "Technical Specifications for Oil-immersed Shunt Reactors for 1000kV AC Systems", and Compared with GB /Z 24844-2009, the main technical changes are as follows.

--- Updated normative references, deleted expired and unquoted standards (see Chapter 2, 2009, 2nd) chapter);

--- Added basic parameters of 160Mvar/1000kV and 280Mvar/1000kV shunt reactors (see 5.1);

--- Supplemented the relevant parameters of the neutral point insulation level of 1000kV shunt reactor (see 5.2);

--- Removed the pressure release value of the 1000kV shunt reactor pressure release device (see 6.6.2 of the 2009 edition);

--- Modified 1000kV shunt reactor test project. type test added "end lightning interception impact test"; radio dry The disturbance test is listed as a special test item; the "1.1 times overcurrent test" is changed to "1.05 times overcurrent test; the neutral point is deleted." "Discharge measurement", the "end external pressure test" is modified to "end external pressure test (with partial discharge monitoring)", the neutral point Partial discharge measurements are combined with neutral point external pressure test (see Chapter 7, Chapter 7 of the 2009 edition);

--- Revised the requirement for dry gas before oil tanking, and the dew point was changed from "not higher than -40 °C" to "not higher than -50 ° C" (see 8.2.1, 8.2.2 of the 2009 edition);

--- Removed the requirement for gas purity of gas-filled transport (see 8.2.2 of 2009 edition).

--- Supplemented the insulation level at the head end of the neutral grounding reactor (see A.2.2);

--- Revised the rated thermal short-circuit current of the neutral grounding reactor (see A.2.3, 2009 edition of A.2.4);

--- Increased the requirements for the rated mechanical short-circuit current of the neutral grounding reactor (see A.2.4);

--- Added pilot project for neutral grounding reactor (see A.3).

1 Scope

This standard specifies the performance parameters, technical requirements, tests, signs, packaging and performance of oil-immersed shunt reactors for 1000kV AC systems. Transportation and other requirements.

This standard applies to single-phase oil-immersed shunt reactors with a voltage rating of 1000kV and a rated capacity of 160Mvar~320Mvar. product. In addition to the basic parameters of the product, the technical requirements of other capacity products can be implemented with reference to this standard.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 1094.1 Power transformers - Part 1. General

GB/T 1094.2 Power transformers - Part 2. Temperature rises of liquid immersed transformers

GB/T 1094.3 Power transformers - Part 3. Insulation level, insulation test and external insulation air gap

GB/T 1094.6 Power transformers - Part 6. Reactors

GB/T 1094.10 Power transformers - Part 10. Sound level determination

GB 2536 Unused mineral insulating oil for electrical fluid transformers and switches

GB/T 2900.95 Electrotechnical terminology transformers, voltage regulators and reactors

GB/T 5273 high voltage electrical terminal size standardization

DL/T 1094 Guidelines for Selection of Insulating Oil for Power Transformers

JB/T 501 Power Transformer Test Guide

3 Terms and definitions

The terms and definitions defined in GB/T 2900.95 and GB/T 1094.6 apply to this document.

4 Conditions of use