The application of intelligent control and wireless temperature measurement products in Inner Mongolia Xinyuan 100,000 tons of granular silicon project

Ren Yunye Ankerui Electric Co.
, Ltd.
Shanghai Jiading 202208 Abstract: In order to avoid the high temperature caused by the loosening of wire connectors, cable aging, etc.
, the economic losses caused by the huge economic losses caused by some electrical equipment such as high-current cable equipment nodes, local abnormal heating parts of power equipment, dynamic and static contacts of switchgear, inlet and outlet busbar contacts, electrical contacts in rectifier cabinets, transformer nodes, substations or electrical contacts in outdoor important circuits, etc.
Safe temperature monitoring and intelligent control are essential
.

In this regard, our intelligent control energy series products can effectively solve such problems
.

Keywords: high voltage switchgear; Intelligent control; Wireless temperature measurement 1, overview of substation busbars, cables, circuit breakers and other operating equipment due to long-term operation in high voltage, high current environmental conditions, monitoring and maintenance of the temperature of each equipment is to ensure the reliable work of the power grid
.

In particular, the closed operation equipment such as high-voltage switchgear and combination electrical appliances has poor heat dissipation conditions, and it is difficult to complete the direct measurement and online monitoring
of the temperature of the equipment in the cabinet by relying on the method of manual periodic temperature measurement.

Due to the lack of an effective equipment temperature online monitoring and early warning system, fire accidents caused by excessive equipment operating temperatures in substations have been reported from time to time in recent years, which seriously affects the reliability of power supply of the power grid, and also causes greater economic losses and even personal injuries
to power companies.

Inner Mongolia Xinyuan "annual output of 300,000 tons of granular silicon" project, covering an area of 5,000 acres, the project is divided into three phases of construction, the first phase to achieve an annual output of 100,000 tons of granular silicon production capacity
.

For more than ten years, we have continuously promoted the diversified development of polysilicon product technology, developed FBR granular silicon with completely independent intellectual property rights and achieved mass production of 10,000 tons, formulated 1 international standard for FBR granular silicon, 2 national standards, and authorized 136 independent intellectual property rights
.

Compared with the traditional improved Siemens method, the FBR method granular silicon production process reduces the investment in the new plant by 30%, the comprehensive power consumption is reduced by 65%, and the production technology and product quality are in a relatively high position
.

Stable and reliable power system is an important guarantee for the development of enterprises, therefore, the use of reasonable and effective and reliable data temperature detection technology for transformers, busbars, cables and action switch contacts and other heat-prone parts of the temperature real-time online monitoring, timely detection of equipment operating temperature abnormal hidden dangers and achieve abnormal alarms, to ensure the reliable operation of substation equipment is of great significance
.

2.
Product requirements and configuration The project is safe temperature monitoring and intelligent control for 60-sided 6KV high-voltage cabinets such as inlet cabinets, parent cabinets, PT cabinets, and outlet cabinets in the distribution room of the second district, and intelligent control and wireless temperature measurement products
need to be configured.

The specific requirements are as follows: 1) with dynamic simulation diagram, high voltage live display and latching control; 2) Energy storage indication, live and error-proof voice indication; 3) 2-way automatic temperature and humidity control and display, communication line length 6m; 4) Remote/in-situ operation, split/closing operation; 5) Cabinet lighting operation; 6) RS485/Modbus communication; 7) Human body induction; 8) Pre-score/pre-fit flash indication; 9) Electrical contact temperature measurement and display, requiring each side of the high-voltage cabinet to measure the temperature at 6 points; 10) wireless transmission: the use of induction power taking mode, starting current ≥5A, temperature measurement range -50 °C ~ 125 °C, sensor and power supply module as one, the overall service life is not less than 10 years, the measurement accuracy is ±1 °C; 11) Real-time monitoring: The temperature sensor in the temperature measurement module transmits the real-time measured temperature information to the receiving module, and the receiving module uploads this information to the intelligent control unit in real time (the frequency of temperature upload can be set), and then uploaded to the background system by the intelligent control unit to ensure the real-time data
.

According to the above requirements, the intelligent control device and wireless temperature measurement products of Acquay are selected as shown in the following table
.

3, product program details 4 system requirements and design system should be through the intelligent power monitoring device, communication network and computer software, to achieve the power supply and distribution system in the operation of the data collection, operation monitoring, accident recording and analysis, relay protection, intelligent control, etc.
, to complete the enterprise's safe power supply, electricity management and operation management
.

The system should be composed
of a station control management layer, a network communication layer and a field device layer.

System function requirements: 1) data acquisition and processing: real-time acquisition of various electrical parameters, switching and temperature quantities, electric energy meter reading values, etc.
through the spacer layer equipment; 2) Screen display: the combination of each circuit, the sub-state, the position information, the protection equipment action and return information, the information of the DC system and the variable system used, the real-time data of each measurement value, various alarms and other information
.

3) Recording function: with voltage, current, power, electric energy and accidents, alarm events and other historical data storage functions, for query, analysis, printing
.

4) Alarm processing: users can classify and filter relevant alarms according to their own needs, and summarize the alarms in different alarm windows
.

5) It should have perfect user rights management functions to avoid unauthorized operations; 6) Curve analysis function: can display the simulated and electrical measurement data in real-time database and historical database in the form of curves, so as to analyze its current operating status and related historical trends; 7) Report statistics function: Through the report, it is convenient to analyze the power supply system and the operating parameters
of each loop.

8) Transformer monitoring provides the parameters and alarm information of the transformer, and the reported information includes but is not limited to the following: telemetry: transformer temperature; Remote communication: transformer over-temperature alarm; 9) High voltage distribution cabinet monitoring provides various parameters and alarm information of high voltage distribution cabinet; 10) Low voltage distribution cabinet monitoring (including floor distribution) to provide low-voltage distribution cabinet parameters and alarm information; 11) Oil machine (high pressure oil machine and cabinet) monitoring provides various parameters and alarm information of oil engine and cabinet; 12) Oil supply system monitoring Provide the parameters and alarm information of the oil supply system, and the reported information includes but is not limited to the following: telemetry: oil tank oil level, etc.
; Remote communication: oil pump working status, fuel availability time, oil leakage (oil theft); 13) Temperature measurement intelligent control device function requirements: required with six-point temperature measurement function, with dynamic analog diagram, energy storage indication, live and error-proof voice indication, high voltage live display and latching control, automatic temperature and humidity control and display, remote / local operation, division / closing operation, pre-division / pre-closing flash indication, electrical contact temperature measurement and display, RS485 communication interface
.

5, on-site installation picture 6, the conclusion ASD300 intelligent control device is a new type of multi-functional, intelligent analog dynamic indication device developed and designed for the power switch cabinet, it sets a circuit simulation diagram, switch state, circuit breaker position, grounding switch position, spring energy storage state, isolating switch state, voice anti-error indication, high voltage live indicator, wireless temperature measurement, high voltage live lockout and automatic heating dehumidification control, temperature and humidity control, heater failure, Over-temperature alarm indication and other multi-functions in one, can ensure the safe and reliable operation
of electricity.

Reference[1] Ankerui Enterprise Microgrid Design and Application Handbook.
2019.
November Edition[2] Ankerui Smart Grid User-end Power Monitoring / Power Energy Management/Electrical Security (Product Quotation Manual).
2020.
01 Edition Author Introduction: Ren Yunye, male Ankerui Electric Co.
, Ltd.
, the main research direction is wireless temperature
measurement.