06Sep

Zinc oxide arrester is to protect all kinds of electrical equipment in the power system from overvoltage damage electrical products, with good protective performance, if zinc oxide arrester leakage, that is, the performance is reduced, can not play a protective role, then the test zinc oxide arrester performance is very important, the main index is zinc oxide arrester leakage current value, How to measure the leakage current value easily and quickly? Today, a simple method is used to test the leakage value with the zinc oxide arrester live tester. Without power failure, without disassembling the equipment, the leakage current value of the zinc oxide arrester can be detected by directly clamping the grounding wire of the zinc oxide arrester. The instrument model used is ETCR9400. Lightning Arrester Leakage Test Steps: 1) Check whether the power of the host and the detector is sufficient, less than 50% must be charged 2) Check whether there is an emergency pull ring installed for emergency situation use. 3) Install the detector on the insulating rod interface, the interface can adjust the direction of the clamp jaws of the detector to facilitate the clamping-on the wire. 4) Press the "OPEN" button to open the clamp jaws of the detector. 5) Lift the insulation rod and clamp the wire. After confirming that the wire is clamped, press the "CLOSE" button to close the clamp jaws, and the tester will enter the test state. 6) After reading the test value, press "OPEN" key to open the clamp jaws, and let the detector withdrawn from the wire. After removing the insulation rod, press the "CLOSE" key to close the clamp head, remove the detector from the insulation rod, and recover the insulation rod.

27Feb

ETCR3350 Large-Scale Grounding Grid Earth Resistance On-line Monitor is used for the online monitoring of large ground network grounding parameters in substations, power plants, microwave stations, communication base stations, etc. The instrument has powerful functions, and can test power frequency grounding impedance, ground on-resistance, soil resistivity, step voltage, contact voltage, potential gradient and other power frequency characteristic parameters. The instrument has unique diagnostic function of grounding pile and connecting line and self-test function to ensure the accuracy of test results. The operation of the instrument is particularly convenient and simple by touching the color screen, and the operation prompts are clear at a sight by clicking the "Help" key. The instrument adopts new frequency conversion AC power supply and microcomputer processing control and signal processing, which effectively solves the anti-interference problem in the test process, simplifies the test operation process, and improves the accuracy and accuracy of the test results. The labor intensity and test cost of test personnel are greatly reduced. The instrument adopts frequency conversion anti-interference technology, with 400V/5A high power output. ProductFeatures 1.Equipped with RS485 interface, the test data can be uploaded to PC or industrial computer to realize remote online monitoring of various grounding parameters. 2. Equip with touch color screen, test function and selection are convenient and easy, and it is very convenient to view test results and historical records. 3. "HELP" button can view the operation method and the wiring diagram clear and obvious. 4. The output current is 1A ~ 5A, voltage is 400V, and adopt the automatic frequency conversion technology and software and hardware filtering technology, which make the tester have high anti-interference performance, test data will stable and reliable. 5. With the function of testing current stake and voltage stake, which is used to diagnose the faults of poor connecting lines and poor grounding of voltage and current stake. 6. With self-checking function, equipped with 0.5Ωstandard resistance, which can self-check the tester at any time to ensure the accuracy of test results. 7. Supports Bluetooth communication of Android system. After installing the APP, can test or view the test results on the mobile. Technical Specification Power Supply AC220V±10%, 50hZ Display Screen 5inch touch colorful screen Impedance Measurement Range 0.000Ω～200Ω Resolution 0.001Ω Measurement Error ±2%rdg±5dgt Soil Resistivity Measurement Range 0Ωm～125kΩm(Depends on resistance measurement range and test length) Soil Resistivity Measurement Accuracy According to the meausrment accuracy of R(ρ=2πaR；a:1 m～100m；π=3.14) Anti-Power Frequency/Voltage Interference Ability 10V(50Hz) Test Current Wave Sine Wave Test Current Frequency Choose one or two frequency points arbitrarily between 40Hz and ...

15Sep

ETCR6600 series Clamp Leakage Current Meteris specially designed and manufactured for measuring AC leakage current and current. The meter adopts unique CT technology and digital integration technology, has the characteristics of small size, high precision and perfect function. Widely used in electric power, communications, meteorology, railway, oil field, construction, measurement, scientific research and teaching units, industrial and mining enterprises and other fields. Product Features 1. This is a multi-functional new type clamp leakage current measurement meter. 2. The clamp jaw is made of permalloy and magnetic shielding technology, which is almost unaffected by external electromagnetic field and with high measurement accuracy and good stability. 3. The clamp meter with true RMS measurement, filter(band pass filter) function, maximum value / minimum value / average value, harmonics, aberration rate and other test functions. 4. The clamp meter equip with rechargeable high-capacity lithium battery, also has backlight, spotlight, data hold, Bluetooth communication and other functions. Technical Specification Model ETCR6640 ETCR6670 ETCR6680 Range AC 0.00mA～300A AC 0.00mA～1200A AC 0.00mA～2000A Resolution AC 0.01mA AC 0.01mA AC 0.01mA Max Accuracy ±1.5%rdg±5dgt ±1.5%rdg±5dgt ±1.5%rdg±5dgt CT Size Φ40mm Φ70mm 80mm×80mm Meter Dimension 192mm×96mm×40mm 237mm×131mm×40mm 253mm×145mm×40mm Weight 256g 477g 664g Power Supply Rechargeable lithium battery DC3.7V/1000mAh LCD Size 43mm×38mm；display area：36.5mm×29mm LCD Backlight Yes Spotlight Yes Filter Function (Band Pass Filter) Filter open: 40Hz~70Hz; Filter close: 40Hz~1kHz Harmonic Analysis 21times (above 10mA) Distortion Rate Yes (above 10mA) Max/Min Value Yes Average Value Yes Data Hold Yes Overflow Display Exceed measure range overflow function: “OL ” symbol display Bluetooth Communication Yes, can test or view the test results on mobile after install the APP. Automatic Shutdown 5 minutes after power on, will shutdown automatically without any operation to reduce the power consumption. Working Current 60mA (open spotlight 72mA) Line Voltage Below 600V line test Working Condition -10℃～50℃; below 80%RH Dielectric Strength AC 3700V/rms(between the core and shell) Accessories Meter:1PCS; Charger/charge cable:1set; Tool bag:1PCS Current Test When testing the current, try best to put the tested wire at the center of the clamp jaws. If the measured wire deviates from the center position of the jaws, the error may increase by 1% to 4%. Only clamp 1 wire at load current measuring. Shown as follow figure 1. Leakage curent measrent, single phase 2-wire, single phase 3-wir, 3-phse 3-wire, 3-phae 4-wire clamp simultaneously to measure, shown as follow figure 2: Only clamp 1 groudng lead at eath leakae current measuremt, shown as follw fiure 3:

30Sep

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!

05Jan

Le défaut de mise à la terre monophasé de la ligne aérienne 10KV est une sorte de défaut qui se produit souvent dans les lignes aériennes à haute tension, ce qui affectera sérieusement la consommation électrique normale des utilisateurs. Dans les cas graves, cela peut endommager l'équipement de la sous-station et provoquer des accidents de sécurité majeurs. Défaut à la terre monophasé : mise à la terre métallique monophasée, mise à la terre d'arc, mise à la terre de la résistance de transition, panne d'isolant et panne de parafoudre, etc. Le détecteur de défaut à la terre de ligne aérienne ETCR1400 s'applique à la détection de défaut à la terre monophasée des lignes aériennes à haute tension et localise avec précision le point de défaut à la terre. Recherchez avec précision les défauts de terre cachés de la ligne aérienne tels que la mise à la terre métallique monophasée, la mise à la terre des arcs, la mise à la terre de la résistance de transition, la panne de l'isolant et la panne du parafoudre, etc. caractéristiques du produit 1. Innovant intégré la transmission et l'acquisition du signal dans une pince de détection. La structure en forme de pince est pratique pour la détection. Le test de défaut de ligne peut être effectué en une seule détection de pince, ce qui n'est pas nécessaire pour produire et acquérir des opérations uniques sur deux sites, et pas besoin de déconnecter le PT (transformateur de tension de phase). La détection est pratique et rapide, réduit le nombre d'opérateurs et améliore l'efficacité du travail. 2. La pince de détection est équipée d'un électroscope sans contact. Si la ligne testée est électrifiée, le détecteur émettra une alarme lumineuse et l'hôte diffusera une invite vocale pour assurer la sécurité des opérateurs et de l'équipement. 3. Particulièrement adapté aux lignes défectueuses avec des dérivations de câble. Forte capacité de détection de court-circuit, qui peut détecter le défaut de court-circuit direct de la résistance de mise à la terre de 0Ω. 4. La tension de sortie est jusqu'à 8000V, et il existe deux options de 8000V et 3000V pour répondre aux différentes demandes des utilisateurs. 5. Équipé de la batterie rechargeable de grande capacité, peut compléter la détection de toute la ligne aérienne après avoir été complètement chargée. 6. La vitesse de détection est rapide et les résultats du test peuvent être obtenus en quelques secondes après avoir branché le détecteur. 7. L'écran couleur de 7 pouces peut afficher la direction du défaut est évidente et claire. 8. Avec la fonction de diffusion vocale, indiquez la direction du défaut. 9. Avec la fonction de communication Bluetooth, la distance de communication jusqu'à 40 m. Après avoir téléchargé et installé l'application, vous pouvez effectuer le test et afficher les résultats du test sur le téléphone mobile, qui peut être utilisé comme récepteur portable. Innovant intégré la transmission et l'acquisition du signal dans une pince de détection Le test de défa...