DL/T 1432.2-2016Testing specification for on-line monitoring device of transformation equipment - Part 2: On-line monitoring device of gases dissolved in transformer oil (English PDF)

Foreword

DL/T 1432 Testing specification for on-line monitoring device of transformation

equipment is divided into 5 parts.

— Part 1. General testing specification;

— Part 2. On-line monitoring device of gases dissolved in transformer oil;

— Part 3. On-line insulation monitoring device of capacitive equipment and

metal-oxide surge arrester;

— Part 4. On-line partial discharge monitoring device (UHF) of gas insulated

switchgear;

— Part 5. On-line monitoring device of the earthing current of power

transformer core.

This Part is Part 2.

This Part was proposed by the China Electricity Council.

This Part shall be under the jurisdiction of the National Technical Committee for

Standardization of Condition-based Maintenance and On-line Monitoring of

Electrical Power Units.

Major drafting organization of this Part. China Electric Power Research Institute.

Major participating organizations of this Part. State Grid Zhejiang Electric Power

Company, State Grid Hebei Electric Power Company, Electric Power Research

Institute of Guangdong Power Grid Corporation, Ningbo Ligong Online

Monitoring Technology Co., Ltd, Henan Zhongfen Instrument Co., Ltd, and

Sieyuan Electric Co., Ltd.

Main drafters of this Part. Yuan Shuai, Yan Chunyu, Gao Keli, Bi Jiangang, Shi

Yanjie, Liu Ming, Wang Feng, Peng Jiang, Wu Liyuan, Yang Yuan, Gong

Yanpeng, Yang Ning, Chang Wenzhi, Jiao Fei, Qi Jiong, Zhang Liyan, Fu Qiang,

Zhao Yong, Zhang Hongbo, Li Gang, Meng Nan, Deng Yanguo and Zhang Wei.

Any comments or suggestions about this Standard in the implementation

process shall be fed back to the Standardized Management Center of the China

Electricity Council (No. 1, Lane 2, Baiguang Road, Beijing, 100761).

Testing specification for on-line monitoring

device of transformation equipment -

Part 2. On-line monitoring device of gases

dissolved in transformer oil

1 Scope

This Part specifies the test conditions, test items, instruments and materials,

test contents and requirements, test result processing and test cycle for the on-

line monitoring device of gases dissolved in transformer oil.

This Part is applicable to the testing of special test items for the on-line

monitoring device of gases dissolved in transformer oil.

2 Normative references

The following documents are essential to the application of this document. For

dated references, only the editions with the dates indicated are applicable to

this document. For undated references, only the latest editions (including all the

amendments) are applicable to this document.

GB 2536 Fluids for electrotechnical applications - Unused mineral insulating

oils for transformers and switchgear

GB/T 7597 Method of sampling for transformer and turbine oils in electric

power industry

GB/T 17623-1998 Determination of component contents of gases dissolved

in insulating oil by gas chromatography method

DL/T 722 Guide to the analysis and the diagnosis of gases dissolved in

transformer oil

DL/T 1432.1-2015 Testing specification for on-line monitoring device of

transformation equipment - Part 1. General testing specification

DL/T 1498.2-2016 Technical specification for on-line monitoring device of

transformation equipment - Part 2. On-line monitoring device of gases

dissolved in transformer oil

3 Test conditions

The test conditions are as follows.

a) ambient temperature. 15°C ~ 35°C;

b) relative humidity. 25% ~ 75%;

c) atmospheric pressure. 86kPa ~ 106kPa; and

d) the supply voltage and power shall conform to the requirements given in

the manual for the on-line monitoring device of gases dissolved in

transformer oil.

Note. When the equipment cannot be tested under the above conditions for some reason, the actual

weather conditions shall be recorded in the test report.

4 Test items

The tests for the on-line monitoring device of gases dissolved in transformer oil

are divided into type test, exit-factory test, commissioning test and field test.

The test requirements for general items are in accordance with DL/T 1432.1-

2015 Testing specification for on-line monitoring device of transformation

equipment - Part 1. General testing specification. The special items shall be

implemented in accordance with this Standard. The specific test items are

shown in Table 1.

Table 1 -- Test Items for the On-line Monitoring Device of Gases

Dissolved in Transformer Oil

S/N Test item Standard Clause Type test

Exit-

factory

test

Commissioning

test

Field

test

1 Structure and appearance inspection

DL/T 1432.1-

2015 4.2 - - - -

2 Basic function testing DL/T 1432.1-2015 4.3 - - - -

3 Insulation resistance test DL/T 1432.1-2015 4.6.1 - - - *

4 Dielectric strength test DL/T 1432.1-2015 4.6.2 - - * *

5 Impulse voltage test DL/T 1432.1-2015 4.6.3 - - * o

6 Electromagnetic compatibility test

DL/T 1432.1-

2015 4.7 - o o o

7 Cold test DL/T 1432.1-2015 4.5.2 - o o o

6 Test contents and requirements

7 Test result processing and test cycle