ETCR9500B Wireless High Voltage Current Transformation Ratio Tester

Introduction

 ETCR9500B Wireless High Voltage Current Transformation Ratio Tester breaks traditional structure, specially designed for high and low voltage first and secondary loop current, variable ratio, phase, polar, ratio difference, angle difference and current leakage test; apply the latest CT technology and mask digital integration technology, composed of special high-voltage clamp, low voltage clamp, host, high voltage insulation rod and monitoring software, etc; its wireless transmission test data can penetrate multiple building obstacles with a straight-line distance of 30 meters.

 Monitoring software has online real-time monitoring and historical query function, with dynamic display, wave direction, variable ratio, frequency indication, with maximum, minimum, mean value indication; alarm setting and alarm indication functions, functions of historical data reading, access, saving, analysis, processing, sorting, fitting curve, report and printing.

 High-voltage detector connected rod can be used in the measurement of high voltage line current, currents on both sides of transformer, variable ratio test, online current monitoring below 60KV; The special clamp ammeter can facilitate clamp to exit the tested lead by pressing or pulling back insulation bar, which is time efficient and convenient; widely used in power plant, substation, industrial and mining enterprise, inspection station, electrician maintenance department for current sensing, power audit and field working.

   Technical Specifications 

                     Function     

    High and low voltage first and secondary loop current, variable ratio, polarity, phase difference, current leakage online test; current on both sides of transformer, variable ratio online monitoring  

                     Power supply     

    DC6V alkaline dry battery (1.5V AAA×4), continuous working for 30 hours

                     Test mode     

    Clamp CT

                     Transmission mode     

    Wireless transmission, the maximum distance of straight line transmission is about 30m

                     Display mode     

    LCD: 128dots×64dots; blue backlight function

                     LCD dimension     

    Display domain: 44mm×27mm

                     Meter dimension     

               Host: width, height, thickness75mm×170mm×30mm     

           High voltage clamp: width, height, thickness 76mm×255mm×31mm     

           Low voltage clamp: width, height, thickness 63mm×160mm×23mm     

                     Clamp dimension     

               High voltage clamp: φ48mm     

           Low voltage clamp: φ30mm     

                     Sampling rate     

    About 2 times/second

                     Measurement scope     

               High voltage clamp: 0.1mA-1000A     

           Low voltage clamp: 0.01mA-10A     

                     Resolution     

               High voltage clamp: 0.1mA     

           Low voltage clamp: 0.01mA     

                     Shift     

    Automatic shift

                     One loop testing accuracy     

           23C±3C, below 80%RH     

    0.1mA-10.0A:       ±1%±3dgt 

          10.0A-49.9A:        ±1.5%±5dgt 

          50.0A-199.9A:      ±2%±5dgt

          200A-600A:         ±3%±5dgt   

          601A-1000A:        ±4%±5dgt  

                     Secondary loop testing accuracy     

    0.01mA-10A:       ±1%±3dgt (23C±3C, below 70%RH)

                     Variable ratio     

    3 variable ratio displays: (first and secondary loop real-time current measurement ; calculate the variable ratio at 5A of secondary loop and 10kV-YY of transformer 10kV/380V); the maximum transformation ratio is 1:10 million (1.0K7)    

                     Data storage     

    3000 sets, press key HOLD to maintain data and automatically numbered storage (data won’t lose in power off or battery replacement)

                     Line voltage     

    Below 60KV line test (with 5 insulation rods operation)

                     Data retention     

    Press key HOLD key to maintain data, shown by HOLD , and then press HOLDto cancel maintaining.

                     Data access     

    Enter data access mode by pressing key HOLD+ key POWER 

                     Overflow display     

    Over-range overflow function: shown in “OL A”

                     No signal indication     

     “No signal” will be shown when the host fails to receive signal

                     Automatic shutdown      

    15 minutes after boot, meter automatically shuts down

                     Battery voltage     

    When battery voltage is lower than 4.8V, battery voltage is shown in low symbol to remind battery replacement

                     Meter mass     

               Host: 240 g (with battery)     

           High voltage clamp: 335g (with battery)     

           Low voltage clamp: 170g (optional)     

           the total mass of meter: 2.5kg (including insulation rod and battery)     

                     External disturbance     

    No particularly strong electromagnetic field; without 433MHz and 315 MHz interference

                     Working temperature and humidity     

    -25C-45C; below 80%Rh

                     Storage temperature and humidity     

    -10C-60C; below 70%Rh

                     Insulation rod dimension     

    φ32mm, 1m/piece (5pieces,standard configuration)

                     Low voltage current clamp lead     

    Standard 2m

                     Insulation strength     

               High voltage clamp: AC100kV/rms (between the 5th insulation rod and high voltage current clamp core)     

           Host and low voltage clamp: AC1000V/rms     

                     Structure     

    Anti-drip type II (high voltage detector)

                     Accessories     

    Clamp: 1 piece; receiver: 1 piece; current clamp: 1 piece; disc: 1 piece; RS232 communication wire: 1 piece; meter box: 1 piece; insulation rod (1m): 5 pieces; battery (alkaline battery AAA not included package): 8 pieces