SF6 gas leak monitoring and alarm system applied in BASF Chemical 35KV project

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SF6 gas leak monitoring and alarm system applied i

The SF6 Gas Leak monitoring and alarm system (WINFOSS-SIP) is applied to the 35KV high-voltage switch room and 10KV high-voltage ring cabinet switch room in Pudong Station of BASF New Materials Co., LTD. The two high-voltage switch rooms are insulated with ABB sulfur hexafluoride gas switch cabinets. The main components of the high-voltage switch cabinets are in the gas cabinet filled with sulfur hexafluoride. Because sulfur hexafluoride gas has good arc extinguishing and insulation properties, the interphase distance can be greatly shortened.

BASF New Materials Co., Ltd. is a Chinese company with its main office at No. 300 Jiangxinsha Road, Pudong New Area, Shanghai. It operates in the manufacturing industry of synthetic dyes and pigments.

The company was established on April 18, 1994. It currently has a total of 1,026 (2017) employees. According to the latest financial summary, BASF New Materials Co., Ltd. reported an 11.85% increase in net sales revenue in 2017. In [year] BASF New Materials Co., Ltd. 's net profit margin decreased by 0.01%.

In June 2014, three key expansion projects of BASF's Characteristic Materials Business unit were successfully launched in Shanghai Pudong base, including engineering plastics Ultramid® (Polyamide, PA), Ultradur® (Polybutylene terephthalate, PBT) capacity expansion, Elastollan® Thermoplastic polyurethane elastomers (TPU) capacity expansion, and Cellasto® (Microporous polyurethane elastomers) technology center and capacity expansion.

As the scale of BASF Pudong Base continues to expand, electrical equipment has greatly increased, and the power supply of 10KV switch room of the original station is insufficient. In July 2018, the company announced that the 35KV switch room of the Asia Pacific Innovation Park Phase II project in its Pudong base broke ground in September 2017, with a planned investment of 5 million euros. The plant is scheduled to be fully completed and put into operation by April 2019. The internal electrical installation unit is Shanghai Port City Electric Power Construction Co., LTD. Wevers, in cooperation with Shanghai Port City Electric Power, installed a set of SF6 gas leak monitoring and alarm system with model WINFOSS-SIP for 35KV high-voltage switch room and 10KV high-voltage ring network cabinet switch room from April 24 to 25 to ensure the personal safety of personnel in the switch room environment. An SF6 gas leakage monitoring and alarm host, 6 sulfur hexafluoride and oxygen monitoring units and 1 temperature and humidity monitoring unit are installed in the two switch rooms, respectively. The system meets the requirements of online real-time monitoring of SF6 concentration and oxygen content and online monitoring of temperature and humidity in the SF6 gas ring network cabinet room environment, as well as linkage control of indoor exhaust fans. The system uploaded the data to the general platform of the power station monitoring center.

SF6 gas leakage monitoring and alarm system in accordance with the "DL408-1991 electrical industry safety working regulations (Electrical parts of Power plants and substations)" Chapter 8, "DLT 639-1997 sulfur hexafluoride electrical equipment Operation, testing and maintenance personnel safety protection Rules" chapter 4 requirements and "JBT 10893-2008 Requirements of sulfur hexafluoride environmental monitoring system for high voltage combined electrical distribution room. Among them, in the "Electrical industry safety Work Regulations" (power plant and substation part), the distribution unit room equipped with SF6 equipment must ensure that the SF6 gas concentration is less than 1000ppm, in addition to the installation of strong ventilation devices must also be installed can alarm oxygen meters and SSF6 gas concentration monitoring and alarm meters.

The 35KV and 10KV switch rooms of BASF Pudong Power Station adopt SF6 gas leakage monitoring and alarm system, which integrates the SF6 concentration, oxygen content, temperature and humidity monitoring and other comprehensive solutions. Provides both real-time alarm and data store query functions. The simple operation panel of the system and the LCD dynamic display make it easy for users to master all the operation and use of the system. The gas concentration status of sulfur hexafluoride ring cabinet equipment is monitored in a real-time and dynamic manner. The organic combination of the entire system leaves the user with minimal maintenance steps and costs. The system monitors the environmental dynamics of the ring cabinet switch room 24 hours a day, creating a good safety environment for the high pressure switch room, and dynamically monitoring the SF6 gas leakage of the sulfur hexafluoride ring cabinet equipment 24 hours a day.