Electronic quick oil pressure relay device for oil filling power device
A technology of electrical equipment and relays, which is applied in the field of electronic quick-acting oil pressure relay devices, can solve problems such as difficulty in action setting, failure of micro switches, inconvenient installation, etc., and achieves a guaranteed level of safety protection, sensitive and fast protection, and guaranteed The effect of service life
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[0012] An embodiment of the oil-filled power equipment of the present invention is a power transformer. It can be seen from the accompanying drawings that the designed electronic quick-acting oil pressure relay device consists of two separate parts, extension A and extension B. The extension A shown in Figure 1 is installed at the power transformer, and has an independent power supply for the optical fiber communication interface to realize photoelectric conversion. The frequency output type pressure sensor (probe) is connected with the oil tank pipeline, and the pressure signal is accurately detected in real time, and the electrical signal output by it is Through the optical fiber communication interface 1, the optical signal is converted into an optical signal and output by the optical fiber 3 to communicate with the back-end processor, which not only ensures that the communication is not subject to electromagnetic interference from the transformer, but also simplifies its st...
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