Power quality online monitor (non-contact)

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  • With the rapid development of China's Industrial Science and technology modernization, the loss caused by power quality is becoming more and more serious. Including finance, communication, data center, semiconductor, precision processing, electronics and modern service enterprises have put forward high requirements for power quality. It is of great significance to strengthen the power quality monitoring of power grid.

    Non contact power quality online monitoring adopts unique non-contact voltage detection technology, which is safe and reliable. It can continuously monitor power quality parameters such as frequency deviation, voltage deviation, voltage fluctuation and flicker, three-phase imbalance, temporary or instantaneous overvoltage, waveform distortion (harmonic), voltage sag, interruption and rise.


    1. Safe and reliable: the non-contact voltage monitoring mode is adopted, which is very practical and suitable for the stable and reliable high-voltage detection of the power supplier.

    2. Comprehensive monitoring: full parameter monitoring, early warning and alarm of transient voltage, frequency and waveform with point power quality.

    3. Remote management: it has the functions of early warning, remote setting of alarm threshold and remote software upgrade.

    4. Complete varieties: it has high-voltage, low-voltage and high-precision monitoring units for power supply and user selection.

    5. Fault location: the product has GPS positioning information to accurately locate the fault in time.

    6. Data service: the Internet of things platform can be used to complete big data analysis, judgment and mobile phone personalized information service.

    7. Flexible service: we can provide our users with platform data display, analysis and customized acquisition unit.


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    Indexes

    Parameters



    1

    Technical   parameter indicators

    Accuracy   class

    Current:   0.2 class, voltage 1.0 class, other 1.0 class


    2

    Input   range (V/A)

    0-1000V, 0-5AAC


    3

    Number   of acquisition channels

    3-way   voltage, 3-way current


    4

    Distortion   rate

    Voltage   and current


    5

    Sampling   Rate

    12.8ksps (can be set)


    6

    Recording   time length

    200 cycles


    7

    Store   waveform times

    100


    8

    Harmonic   order

    Voltage and current 2-65 times


    9

    Inter harmonic   order

    Voltage and current 0.5-49.5 times


    10

    Three-phase   unbalance

    ≤1%


    11

    Frequency   deviation

    ≤0.01hZ


    12

    Frequency   deviation

    ≤1%


    13

    Voltage   flicker

    Pst≤5%  Plt≤5%


    18

    Frequency   response range (Hz)

    5Hz3000Hz


    14

    Power supply

     

    Power supply(VDC/VAC)

    AC85265V/50Hz60Hz


    15

    Rated   power consumption (W)

    ≤3W


    19

    Communication   function

    Communication   baud rate

    9600bps


    20

    Communication   Interface

    RS485, 4G   CAT1


    21

    Communication   protocol

    Modbus


    22

    Environmental   adaptation function  

    Operating   temperature and humidity ()

    -20~60, 0~95%   no-dew (at 30)


    23

    Waterproof   level

    Protection class (IP65)


    24

    Vibration  

    Test according to the test method of TB/T 2846-2015, the test   conditions are in accordance with the requirements of vibration conditions in   4.2, X


    Y, Z three directions, each direction sweeps 5 times, when the   frequency (f) is 10Hz ~ 200Hz, the acceleration is 20m/s²


    25

    Anti-interference   function 

    Overload   capacity

    120%


    26

    Temperature   drift (ppm)

    500ppm   (only for voltage and current detection accuracy)


    27

    Isolation   withstand voltage (KVDC/KVAC)

    AC3500/1mA.1min


    28

    Surge   shock immunity (KV)

    TB/T3074   implementation


    29

    Static   immunity

    To   inspect the chassis port, the quality index shall be in accordance with   Article 6.2 Table 1 of GB/T 24338.5-2009, and the performance criterion shall   be Class B, and the inspection method shall be in accordance with the   standard GB/T 17626.2.



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