Thank you to all clients concern and support ETCR. To celebrate the 73rd anniversary Chinese Nation Day, ETCR will have a holiday from 1st, OCT to 7th,OCT 2022 (7 days in total). During this time. we will be out of office. and we will start to work on 8th,OCT 2022. Here we apologize for the inconvenience in advance! Meanwhile, in the new working stage, we will carry out promotional activities for many models instruments (including Earth Resistance Tester Series, Insulation Resistance Tester Series, etc.clamp current meter series, high/low voltage current meter series, high voltage detector series), and these series instruments will provide very favorable offer. If you are interested, don't hesitate, contact us immediately for more Promotions! During the holiday, our sales would check mails and messages as usual, and will reply your in time. Thank you again for your continued attention and support to ETCR! ETCR team wishes all of our clients and friends all over the world can be health and share our happiness!

The single-phase grounding fault of 10KV overhead line is a kind of fault that often occurs in high-voltage overhead lines, which will seriously affect the normal power consumption of users. In severe cases, it may damage the substation equipment and cause major safety accidents. Single-phase ground fault :single-phase metallic grounding, arcing grounding, transition resistance grounding, insulator breakdown, and lightning arrester breakdown,etc. ETCR1400 Overhead Line Ground Fault Detector apply for single-phase ground fault detection of overhead high-voltage lines, and accurately locates the ground fault point. Accurately search hidden ground faults of overhead line such as single-phase metallic grounding, arcing grounding, transition resistance grounding, insulator breakdown, and lightning arrester breakdown,etc. Product Features 1. Innovative integrated the signal transmission and acquisition in a detection clamp. The clamp-shaped structure is convenient for detecting. The line fault test can be completed in once clamp detecting, which is no need to output and acquisition singal operations in two sites, and no need to disconnect the PT(phase voltage transformer). The detection is convenient and fast, reduce the number of operators and improving work efficiency. 2. The detection clamp is equipped with th non-contact electroscope. If the tested line is electrified, the detector will issue a light alarm, and the host will broadcast a voice prompt to ensure the safety of operators and equipment. 3. Especially suitable for faulty lines with cable branches. Strong short-circuit detection ability, which can detect the direct short-circuit fault of  0Ω grounding resistance. 4. The output voltage is up to 8000V, and there are two options of 8000V and 3000V to meet the different reqeust of users. 5. Equip with the large-capacity rechargeable battery, can complete the detection of the entire overhead line after being fully charged. 6. The detection speed is fast, and the test results can be obtained in a few seconds after hooking up the detector. 7. 7-inch color screen can display the fault direction is obviou and clear. 8. With Voice broadcast function, prompt fault direction. 9. With Bluetooth communication function, the communication distance up to 40m. After download and install the APP, can make the  test and view the test results on the mobile phone, which can use as a handheld receiver. Innovative integrated the signal transmission and acquisition in a detection clamp The line fault test can be completed in once clamp detecting, which is no need to output and acquisition singal operations in two sites, and no need to disconnect the PT(phase voltage transformer). The detection is convenient and fast, reduce the number of operators and improving work efficiency. Non-contact electrometry The test needs to be carried out when the high-voltage line is out of service, but there may still be in...

ETCR8600B contains 15 gear current values, but how does ETCR8600B set the current gear? Function rotary switch 1. V~ gear: This symbol is the AC voltage test gear, this gear can measure AC voltage below 600V; 2. ×1/2 gear : This gear indicates that the current displayed in the setting window is ×1/2, which is also half of the current displayed in the window; 3. ×1 gear : This gear represents the ×1 of the current displayed in the setting window, which is the same as the current displayed in the window; 4. ×2 gear : This gear represents the ×2 of the current displayed in the setting window, which is twice the current displayed in the window; 5. Auto : This gear indicates automatic mode. In automatic mode, the meter automatically outputs from low current to high current in sequence until an action occurs. Current Setting Set default value : 10mA / 20mA / 30mA / 100mA / 300mA / 500mA Corresponding Gear Value Current setting 10mA 20mA 30mA 100mA 300mA 500mA X1/2 gear mode 5mA 10mA 15mA 50mA 150mA 250mA X1 gear mode 10mA 20mA 30mA 100mA 300mA 500mA X2 gear mode 20mA 40mA 60mA 200mA 600mA 1000mA ETCR8600 Leakage Protector Tester is designed to test the line AC voltage, leakage initiating current, residual non-operating current and leakage initiating separation time of various leakage protectors online, the test current from 5~1000mA with 16 grade (5、10、15、20、30、40、50、60、100、150、200、250、300、500、600、1000mA), range of the leakage initiating separation time is 0~999ms.The required output current value can be set according to the table

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ETCR9500BThree Channel Wireless High Voltage Transformation Ratio Tester break through the traditional structure, special designed and manufactured for online measurement of current transducer, transformer primary current and secondary current, transformation ratio, phase and polarity judgment below 35kV in operation. The instrument is composed of primary current clamp (high voltage detector), secondary current clamp, host machine, high voltage insulation rod, monitoring software, communication cable, etc. the test data of primary current clamp adopt wireless to transmit which transmission distance of 100 meters. The current clamp is made of high performance permalloy with magnetic shielding technology, which is almost free from the influence of the external magnetic field, ensuring the long time uninterrupted monitoring of high accuracy, high stability and high reliability. The host LCD display clear and obvious, with large storage space, can store 3000 groups of data. The high voltage detector connect with 5pcs insulation rods, used for high voltage line current measurement which the wire with insulation skin below 60kV or the bare wire below 35kV, high voltage current clamp have unique automatic plug and pull structure, by pressing or pulling out the insulation rod can be easy to clamp or withdraw the tested line, saving time and more effective. It is widely used in substations, power plants, industrial and mining enterprises, inspection stations, electrical maintenance departments for current detection and electrical field operations. The insulation rod is handiness, and has the characteristics of moisture-proof, high temperature resistance, impact resistance, bending resistance, high insulation, scalable and so on. Insulation level 110kV. ETCR9500B Wireless High Voltage Transformation Ratio Tester,also have the functions of high and low voltage clamp meter, high altitude current tester and so on. Technical Specification Function H/L voltage current transducer, transformer primary and secondary circuit current, transformation ratio, polarity and phase adjustment Power Supply DC 6VLR03(1.5V AAA×4) Test Mode Clamp CT Primary Current Test Accuracy Range:0.0A～800A；Resolution：0.1; Accuracy：±0.5%FS(23℃±3℃，below70%RH，the conductor should be in the center of the clamp) Secondary Current Test Accuracy Range：0.00mA～5A；Resolution：0.01mA；Accuracy：±0.5%FS Transformation Ratio Measurement Range 1～500 Transformation Ratio Resolution 0.1 Primary Current Clamp Size Jaw Size: φ48mm Out Shape Size: 76mm×255mm×31mm Secondary Current Clamp Size Jaw Size: φ8mm Out Shape Size: 137mm×40mm×19.5mm Shift Full automatic Sampling Rate 3 times/second Data Storage 3000 groups, Press the left arrow key to keep the data and store automatically (Power down or replace the battery will not lose data) Data Hold Press left arrow key to hold data in test mode, “HOLD” symbol display, press HOLD key again to cancel hold function Data Access Pr...

On September 3, 2020, we was invited by the Hunan Provincial Power Supply Bureau to conduct the ETCR2000+ clamp grounding resistance tester transformer field test in Zhuzhou. Hunan Zhuzhou transformer test field application case sharing: When the transformer has repeated grounding, we can directly use the ETCR2000+ clamp grounding resistance tester to clamp the flat steel grounding down-conductor for measurement. The jaw size of the ETCR2000+ clamp grounding resistance tester is 65mm×32mm, the jaw  is large, which is very suitable for the flat steel grounding downconductor of the transformer. In the field test of the transformer, we can also short the two ground electrodes to test the connection between the ground electrodes and the ground grid. The smaller the value displayed on the screen, the better the connection. As can be seen from the figure, the measured value at that time was 0.027 Ω, which proved that the grounding electrode was well connected to the grounding grid. In the same grounding electrode, due to the large electric field interference of the transformer, the accuracy will be affected, so it is recommended to select the end away from the transformer for measurement. In order to verify the accuracy of the value of the clamp resistance tester, we also used the three-wire grounding resistance test method of the ETCR3200C multifunctional grounding resistance tester for comparison. As can be seen from the figure below, the value obtained by using ETCR3200C (3.28Ω) is basically the same as the value measured by using ETCR200+ (3.12Ω), which proves that the measurement using ETCR2000+ is more convenient, fast, and numerically accurate.

Product Overview Three-phase Digital Phase Voltmeter also name intelligent three phase digital phase voltmeter, multifunction three phase digital phase voltmeter and three clamp digital phase voltmeter etc. Suitable for electric power, petrochemical, metallurgy, railway, industrial and mining enterprises, scientific research institutions, measurement departments. It is especially suitable for electric energy billing system and relay protection system. Product Features ◆ Intelligent design, reduce the complexity of operation, reduce the possibility of misoperation, with high precision, high stability, low power consumption, easy to use and other advantages. ◆  Small sharp clamp is suitable for flat cable dense site. ◆  Adopt voltage transformer and current clamp to input, no high voltage inside the meter, complete isolation between 3 input channels, safe and reliable. ◆  Adopt 2.8 inch LCD color screen ,the dynamic vector diagram indication, clear and obvious. ◆ The test wire adopts special electric power cable, all the plug of spring rod and crocodile clip have insulated protection. The instrument is insulated with non-slip sheath. ◆ In the case of the tested circuit is not open-loop, Measuring three-phase AC voltage, current, phase between voltages, phase between currents, phase, frequency, phase sequence, active power, reactive power, apparent power, and power factor between voltage and current. ◆  Discriminate the transformer wiring group, inductive and capacitive circuits ◆ Test the secondary circuit and the busbar protection system, read the phase relationship between the CT of the differential protection groups ◆  Check the wiring of the meter for correctness, and repair the line equipment ◆  With USB interface, Data storage: 500 groups Product Display Technical Specification Clamp Size Φ8mm Weight 1310g Range, Resolution, Error ( reference conditions) Voltage Range: AC 0.00V～600V         Resolution: AC 0.01V         Error: ±(0.5% range) Current Range: AC 0.0mA～20.0A        Resolution: AC 0.1mA         Error:±(0.5% range) Phase Range: 0.0°～360.0°              Resolution: 0.1°              Error: ±1° Frequency Range: 45.00Hz～65.00Hz     Resolution:0.01Hz           Error:±(1.0% range) Active power Range:0.0W～12kW         Resolution:0.1W             Error:±(1.0% range) Reactive power Range:0.0var～12kvar     Resolution:0.1var            Error:±(1.0% range)...

Introduction ETCR5000 Power Quality Analyzer is a comprehensive test instrument carefully developed by our company and specially designed for field test of three phases, multi-functional and intelligent, concise man-machine operation. It is easy to use, large LCD screen display, high resolution, interface in both Chinese and English,shock-proofshell structure and so on. Can simultaneously measure the 4-channel current (ABC three phase and neutral wire current), 4-channel voltage (ABC three-phase voltage and neutral line voltage to ground), the peak value of current voltage,  maximum/minimum value over a period, three-phase imbalance factor, short-time voltage flicker, transformer K factor, active power, reactive power, apparent power, power factor and displacement power factor, active power, reactive power, apparent power, total harmonic distortion and harmonic, etc; Display real-time waveform, harmonic ratio bar charts of current voltage; Dynamically capture instantaneous change of voltage current, monitoring starting current, monitoring the power parameters and generate the alarm list, generate the trend chart for a long time record test data. In the current power applications, more and more large power equipment, power grid fault have become more and more complex, with development of the industry, it put forward high request more and more to quality that electric energy. We provide this power quality analyzer for that, which you can troubleshoot of complex power system more quickly and accurate, and monitoring and maintenance of power quality parameters more comprehensive and systemic. Product Function 1.Test Function:real-time waveform display (4 channelsvoltage/ 4 channels current); voltage and current true RMS; voltage DC component; current and voltage peak; current and voltage maximum/minimum value within a certain time; phasor diagram display;The measurement of each phase harmonics reaches 50 times; the histogram shows the harmonic ratio of each phase current and voltage; the calculation of total harmonic distortion (THD); Active/reactive/apparent power value and total value of each phase; Each phase active/reactive/apparent electrical energy value and total value of each phase; transformer K factor calculation; calculation of COS φ displacement and power factor (PF); flicker calculation; three-phase unbalance calculation ( Voltage and current). 2. Capture and Monitoring Functions:Capture detection the instantaneous change of electric network voltage and current parameters, including voltage and current fluctuations, voltage and current swell, sag, short-time interruptions, transient over voltage, impulse current, and current and voltage instantaneous distortion. The instrument can store up to 150 groups of transient waveforms simultaneously. 3.Start-up Current Monitoring:It can monitor the inrush current of the circuit and the starting current of the electrical equipment, helpful for the correct design of installed capacity. It...