How to Read Electrical Secondary Circuit Diagrams

35, 110KV level "Substation Secondary Circuit and Operation and Maintenance" ------------ Editor ------- Wang Guoguang

Main content:

1----- Overview of Substation Comprehensive Automation

2------ Overview of Electrical Secondary Circuits in Substations

3-------6/ Secondary circuit of 35KV switchgear

4-----1Sulphur hexafluoride combined electrical appliance secondary circuit

5-----1Secondary circuit of 10KV air-insulated open switchgear

6-----1Secondary circuit of 10KV line

7-----1Secondary circuit of 10KV transformer

8--------Secondary circuit of voltage reactive power automatic adjustment device

9--------1Secondary circuit of 10KV busbar protection device

10--------Secondary circuit of standby power automatic input device

11------Security and stability control and secondary circuit of low-frequency and low-voltage load shedding device

13-------Communication Network Wiring of Comprehensive Automation Substation

14--------AC and DC Operation Power Supply of Substation

15--------Introduction of Intelligent Substation and Secondary Circuit

16--------Correctness Inspection of Substation Secondary Circuit Wiring

17---- ---- substation secondary circuit operation of common abnormalities and treatment

The book features: 1 ------- substation integrated automation overview ------ the primary circuit, secondary circuit, weak circuit, the link between the description of the analysis in detail, 3 ----36/35KV switchgear secondary circuit ------ wiring and current, voltage, protection of the schematic diagram system As well as the back of the 110KV QF, QS body and remote control principle and high-voltage switch between the interlocking instructions carefully. 110KV line, the main transformer protection of the actual wiring, standby power self-transfer, DC operating system, integrated automation substation communication network wiring, and so on, are some of the actual wiring diagrams.

20KV, 500KV level "substation secondary circuit literacy and analysis" ------- Editor --- Xiong Qixin, Wang Xufeng, Peng Shuming

Main content:

1 -------- secondary circuit literacy and troubleshooting knowledge

2 -------- secondary circuit diagrams and analysis

2.1.1------220KV protection circuit

2.1.2-------Double Busbar Failure Protection

2.1.3-------Blocking Protection and Specialized Transceiver Matching Circuit

2.1.3-------220kv Fault Recorder Access Volume Circuit

2.2------ --500KV protection circuit

2.2.1------ optical differential protection circuit

2.2.2------high-frequency distance protection circuit

2.2.2------circuit-breaker failure protection circuit

2.2.3------fiber-optic differential protection circuit

2..3---- --- main transformer failure protection circuit

2..4------secondary voltage and current circuit

2..5------disconnecting switch and circuit breaker control circuit

2.5.1------ShengGao Electric GW6A---252W disconnecting switch control circuit

2.5.2------Changao Electric GW17---550DW Disconnect Switch Control Circuit

2.5.3------ Siemens 3AP1FG---72.5 Circuit Breaker Control Circuit

2.5.4----- Beijing ABB LTB245---E1 Circuit Breaker Control Circuit

2.5.5------ Henan Pinggao LW10B--- 252W Circuit Breaker Control Circuit

2.5.6------ Siemens 3AP1F1---72.5 Circuit Breaker Control Circuit

2.5.7------ Areva GL317X Circuit Breaker Control Circuit

2.5.7------ Xi'an Xidian LW15---550/Y Circuit Breaker Control Circuit

2.6 Other Secondary Circuits

2.6.1------220 DC System

2.6.2-------48V Communication DC System

2.6.3-------500KV Substation Comprehensive Automation System Network

2.6.4-------Protection Channel Circuit

2.6.5------- backup power self-transfer circuit

The book features:1------- main content for the principle of the principle of the system, schematic diagrams, comprehensive, especially for ---- schematic diagrams made by the analysis, the description of the text of the special careful.

2------- For example: 2...4------ secondary voltage, current loop Digital relay module to collect TA, TV analog U, I wiring diagram is particularly detailed

TA, TV body terminal ------- → to TA, TV terminal box ------- → protection disk U, I terminal row ------- → to the protection disk. Protection disk on the digital relay module inside the coil wiring diagram (the diagram of the complete)

2 ------- For example: 2.1.1 ------220KV protection circuit For ---- schematic diagrams made by the analysis, the description of the text of the text of the special careful.

3--------For example: 2.5.1------ Shen Gao Electric GW6A --- 252W isolation switch control circuit The manufacturer's actual schematic drawings of the primary circuit, the secondary control circuit is carefully explained

4-------------- secondary principle followed immediately after the digital logic circuits are comprehensive, detailed analysis

The 2 This book is good, a reference opinion only, I have read it, it is okay.