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        Fiber Optic Temperature Sensors for Transformer Top Oil Bushing Winding and Magnetic Core Temperatur

        price: Negotiable
        Total supply:
        Delivery term: The date of payment from buyers deliver within days
        seat: Beijing
        Validity to: Long-term effective
        Last update: 2020-05-10 08:22
        Browse the number: 246
        Company Profile
        Product details

        1.?Production brief

        Winding temperature is a very important measurand in power transformers, which defines the condition, load capacity and operating life of transformers. Every operator requires the accurate on-line measurement of the transformer winding hot spot temperature, as the ageing of the transformer insulation and the winding hot spot temperature during operation are interrelated, thus he operator can schedule short term and emergency overloading of the transformer above the rating on its name plate without compromising the estimated life of the transformer. Thus, the accurate measurement of the winding hot spot temperature is essential for the best use of the transformer.

        Herch Opto’s innovative fiber optic temperature sensors do just that with maximum durability. Its HQ-E116 type fiber optic temperature monitoring systems allows upto 16 sensors which can be used to measure and monitor transformer top oil, bushing, winding and magnetic core temperature. The sensors can be positioned onto the measurement points inside the transformer and work reliably over 30 years. ?Optic fibers transmit the measurements optically, eliminating the negative influence of both electrical and electromagnetic interference.

        2. Data sheet

        Model No.


        Temperature Range


        Temperature Accuracy


        Temperature Resolution


        Number of Channels

        Upto 16 channels

        Temperature Unit

        ℃?or ℉

        Display Mode

        Digital tube display, display directly if less than 8 channels, display in turn if more than 8 channels

        Response Frequency

        2 seconds per channel (Depend on probes’ position)

        Power Supply

        24V DC

        Digital Interface

        Two RS-485


        Analogue ouput: 4-20mA

        8 relays


        1GB memory space, flash drive (USB port) accessible

        Power Consumption


        Communication Protocol

        Modbus (IEC 61850 customizable)

        Fiber Optic Length

        Per requirement

        3.?Installation Diagram

        4.?Project reference


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