ETCR8100B Transformer Core Earth Current Tester

Main Functions

Used for transformer core grounding current test, AC leakage current, current, and frequency online test
Jaw size: 80mm×80mm
Current range: AC 0.00mA～100A
Frequency range: 10Hz～1000Hz
Alarm function, alarm threshold can be set
Storage function, store 200 sets of data
USB communication interface

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Product Introduction
Technical Parameter
Model comparison
Data download

Product Introduction

ETCR8100B Transformer Core Earth Current Tester, also known as transformer core grounding parameter tester and grounding current tester, is used to test the grounding current and leakage current of transformer core in power systems.The instrument consists of a host, a current clamp, monitoring software, a communication line, etc.Power transformers are important electrical equipment in the power system. Once they fail in operation, they will have serious consequences for the power system.The core of the transformer in normal operation is grounded at a single point. If two or more points are grounded at the same time, a current loop will be formed between the core and the earth, with a maximum current of tens of amperes, which will cause the core to overheat or even burn down.This instrument can detect latent faults of the transformer as soon as possible, and is the main tool to ensure the safe operation and normal maintenance of the transformer.The instrument has anti-interference ability and can be applied to use in an environment with strong magnetic field interference next to the transformer.It is mainly suitable for leakage current testing of iron cores and clamps of electrical equipment such as transformers and reactors in substations and power plants.It can also be used for current and leakage current testing of lines or equipment in the fields of electric power, communications, meteorology, railways, oil fields, construction, metrology, scientific research and teaching units, industrial and mining enterprises, etc.
ETCR8100B Transformer Core Earth Current Tester adopts a high-speed microprocessor, a 3.5-inch color touch LCD screen, and a Chinese interface for easy and fast operation.It can display the size and waveform of the measured current in real time; it has the function of setting the alarm threshold value and alarm indication; it has the function of date clock and setting; it has the function of automatic shutdown; it has the function of setting the test product number; it has a USB interface, which can import the stored data into the computer, and the instrument can store 200 sets of data and waveforms.
1. It is mainly suitable for leakage current testing of iron cores and clamps of electrical equipment such as transformers and reactors.Being able to detect latent faults of transformers in a timely manner is the main tool to ensure the safe operation and normal maintenance of transformers.
2. The current clamp adopts permalloy iron core and double-layer shielding technology, with stable performance and high precision, strong anti-interference ability, and is suitable for complex interference environments.
3. Alarm function, the alarm threshold can be set.
4. Storage function, storing 200 sets of data.
5. Number setting function.
6. USB communication interface.

Technical Parameter

Power Supply	DC 9V alkaline dry battery LR6 1.5V×6
Display Mode	3.5inch color touch LCD screen (320dots×240dots)
LCD Size	Display area: 71mm×53mm
Test Method	Clamp CT
Clamp Jaw Size	80mm×80mm (can clamp Φ80mm wire, or 96mm×4mm flat steel ground wire)
Current Range	AC 0.00mA～100A
Resolution	AC 0.00mA～0.99mA; resolution: 0.01mA；
	AC 1.0mA～99.0mA; resolution: 0.1mA；
	AC 100mA～999mA; resolution: 1mA；
	AC 1.0A～100.0A; resolution: 0.1A；
Accuracy	±(0.5%+5dgt) 23℃±3℃, below 70%RH, the wire is in the center of the jaw
Frequency Range	10Hz～1000Hz
Operation Method	At the same time, it has intelligent touch and button control methods
Host Size	198mm×100mm×45mm
Current Clamp Size	194mm×145mm×40mm
Weight	Host: 450g (including battery); current clamp: 780g
Electric Field Interference	When the external electric field 100A is close to 10mm, it is about 10mA
Sampling Rate	1 time/second
Memory	200 sets (no data will be lost if the battery is powered down or replaced)
Date Clock	With date clock and setting function
Test Product Number	Has the function of setting the test point number
Automatic Shutdown	It has the function of setting the function of automatic shutdown and non-automatic shutdown, and it will automatically shut down after 5 minutes by default when it is turned on.
Touch Screen Calibration	With touch screen calibration function
USB Communication Interface	With a USB interface, the data stored in the instrument can be imported into the computer
Alarm Setting	Alarm threshold setting range: 10mA～99.99A
Alarm Indication	When the test value exceeds the alarm threshold value, the LCD flashes and the buzzer sounds.
Line Voltage	Line test below AC 600V
Overflow Display	Over-range overflow function: ”OL" symbol display
Battery Voltage	When the battery voltage drops to 7.2V±0.1V, the low battery voltage symbol is displayed to remind the battery to be replaced.
Rated Current	Maximum 180mA
Insulation Strength	AC 2kV/rms (between screw and housing)
Suitable Safety Standard	IEC1010-1, IEC1010-2-032, pollution level 2, CAT Ⅲ600V, IEC61326 (EMC standard)
Working Temperature & Humidity	-10℃～40℃; below 80%rh
Storage Temperature & Humidity	-10℃～60℃; below 70%rh

Model comparison

Data download

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ETCR8100B Transformer Core Earth Current Tester

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