As far as the current high-voltage electrical equipment temperature monitoring methods are concerned, either real-time online monitoring cannot be performed or there are hidden safety problems, and the problem of temperature real-time online monitoring of the power system can not be properly solved. Therefore, there is a need to find new technologies to solve the problems of temperature real-time online monitoring.
From the perspective of various current sensing technologies, surface acoustic wave sensing technology can effectively solve the problems existing in the power system temperature monitoring technology. The surface acoustic wave passive wireless temperature sensor measures the temperature according to the change of the oscillation frequency of the surface acoustic wave device caused by the temperature change, the sensor head does not need to supply power, eliminates the safety hazard caused by the power supply problem of the sensor head, and the sensor head adopts passive The device does not have the problem of burning and stopping at a high temperature; wireless transmission is used between the sensor head and the reader to eliminate the hidden dangers of creepage in any other wired (including fiber) connection methods.
Based on this technology, Wuhan Fenghuo Fuhua Electric Co., Ltd. has developed the FH4100 series of passive wireless temperature real-time online monitoring and management system, which has the advantages of pure and passive, maintenance-free, small size, high measurement accuracy and fast response speed. It also has multi-point detection, digital transmission, strong anti-interference, two-level alarm and so on. It realizes real-time on-line monitoring of the temperature of high-voltage electrified body, fundamentally solves the problem of temperature inspection management, and realizes the inspection from time to time. The transition of on-line maintenance provides an effective management tool for preventing accidents.
User evaluation: Deputy Director Li of Transformer Department of Guangxi Qingzhou Power Supply Bureau stated that the product has a small temperature sensor, easy installation, and can be monitored at any time by connecting to a computer. In addition, the product not only reduces the workload of maintenance and power transformation departments, but also the monitoring equipment can be accurate and reliable. Its product price is 20% higher than that of wireless active products, but its overall price/performance ratio is also superior. At present, Qingzhou Power Supply Bureau has already adopted this system in six substations.
1) Are your company is trading company?
A: We are machines manufacture, we have two factories: one is Guangzhou Taixinsheng Machinery Co,. Ltd, other one is Thies (Guangzhou) Co.,Ltd is our own export and import company, mainly deal with export orders.
2)Do you have after sale service?
A:Our factory has been more than 20 years. We have our own professional production and after sale service team. We also can provide knowhow.
3)Which countries are buying your machines?
A: We sold to Bangladesh, Vietnam, Indonesia, South Africa, Norway, Uzbekistan, Malaysia, Thailand, Pakistan, Latvia and so on.
4) Do you attend exhibition?
A:We attend Shanghaitex exhibition, ITMA, DTG in Bangladesh, Vietnam exhibition, Indonesia Exhibition and so on. Before we go to attend exhibition, we will announcement on website.
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Guangzhou Dyedtech Machinery Co.,Ltd , https://www.dyedmachine.com