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. 1. Model No.: ETCR1400 2. Detection Method: Clamp CT 3. Output Voltage: 3000V/8000V two gears 4. Output Frequency: 50Hz 5. Communication Mode: Wireless/Bluetooth 6. Power Supply: Host: 14.8V, 5200mAh Rechargeable lithium battery; Detector clamp: 3.7V, 2600mAh Rechargeable lithium battery

Transformer Region Phase Line Identify Meter used to identify the phase A, B and C of low voltage power supply lines in the same transformer region. Can quickly and accurately identify whether the phase lines and phase of two point in the circuit with a long distance from the same transformer region are consistent or not, and accurately judge whether the measured line and the station transformer output are the same line. 1. Model No.: ETCR1100 2. Communication Distance: Without obstacles blocking 8KM 3. Identify Time：≤5 seconds 4. Identify Success Rate: >99% 5.Rated Votlage: 3-phase 4-wires 220V 6. Power Supply: DC 7.4V 2.6Ah rechargeable lithium battery

Wireless PT Secondary Voltage Drop/Load Tester used for wireless synchronous measurement of secondary voltage drop, load, current, voltage, phase and other parameters of the potencial transformer in substation. 1. Model No.: ETCR4500 2. Test Parameter: Voltage,current,phase,frequency,harmornic,power etc. 3. Communication Mode: GPS Satellite Timing Service & LORA wireless communication 4. Communication Distance: 1000m 5. LCD: 5inch touch color screen 6. Power Supply: DC7.4V, 5200mAH rechargeable lithium battery

Live Zinc Oxide Arrester Clamp Tester also known as live MOA tester, used for testing the leakage current of the zinc oxide arrester below 35kV circuit line to judge whether the performance of the arrester is deteriorating. 1. Model No.: ETCR9400 2. Test Mode: Clamp CT 3. Measurement Range: AC 0.00mA~ 300mA (True RMS) 4. Communication Mode: 433Hz wireless communication 5. Communication Distance: 30m 6. Power Supply: Master: DC 7.4V 2000mAh rechargeable battery, full charge about 8.4VDetector: DC 7.4V 2600mAh rechargeable battery, full charge about 8.4V

Transformer/Reactor Core Earth Current Tester mainly used for leakage current test of iron core and clamps of transformer, reactor and other electrical equipment. It can discover the latent faults of transformer in time, and is the main tool to ensure the safe operation and normal maintenance of transformer. 1. Model No.: ETCR8100B 2. Current Range: AC 0.00mA~100A 3. Accuracy: ±1.5%±3dgt 4. Frequency: 10Hz~1000Hz 5. Display Mode: 3.5 inch color touch LCD screen (320dots × 240dots) 6. Power Supply: DC 9V alkaline dry battery LR6