ETCR4500 Wireless PT Secondary Voltage-Drop/Load Tester Manufacturer & Supplier

Overview
Specification
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Overview

ETCR4500 Wireless PT Secondary Voltage-Drop/Load Tester is used for on-site online testing of the secondary circuit line voltage drop of the electric energy metering device potential transformer (hereinafter referred to as PT) , as well as the PT phase detection, PT load test, CT load test, three-phase voltammeter, and harmonic analysis, etc. The instrument consists of 2 handheld terminals, 6 current clamp clips, 2 sets of voltage test lines, etc. The two handheld terminals have wireless communication and GPS communication, and can be set as masters or slaves for each other to achieve synchronous measurement of current,voltage,phase and so on parameters between different locations in the substation.

ETCR4500 Wireless PT Secondary Voltage-Drop/Load Tester adopts 5-inch touch color screen, perfect and strong function, which can automatic measurement, easy and fast operation, accurate and reliable, the instrument adopts large-capacity rechargeable lithium battery, and with data storage, data access, automatic shutdown, USB Interface data upload and export functions etc., the instrument has Bluetooth communication that supports Android system, after installing the APP, can make the test or view the test record on mobile phone. This instrument adopts a special metering chip, which has very high measurement accuracy for electrical parameters, can display the changes of the measured parameters in real time, and has the function of saving data. The instrument is simple to operate, easy to use, fast, stable and reliable in measurement. It is a new generation instrument for electric energy measurement and relay protection in power system, and it is a new generation instrument for on-site detection of secondary circuits. It is also widely used in electrical equipment manufacturing, petrochemical industry, iron and steel metallurgy, railway electrification, scientific research and teaching departments.

ETCR4500 Wireless PT Secondary Voltage-Drop/Load Tester has the following functions and features:
1. The single tester can be used as a three-phase voltammeter, load tester, and harmonic analysis;
2. The double testers can wireless synchronization test current, voltage, phase and other parameters at different positions in the substation; it is used to test the PT secondary voltage drop, and calculate the voltage drop error and measurement error of the PT. And also can be used for PT wireless phase detecting.
3. When four testers are used at the same time, one of the unit can be set as the master tester, and the other three testers can be set as the slave, which is especially suitable for multi-point synchronous testing, and is flexible and convenient to use.
4. The tester adopts GPS satellite timing synchronization technology to ensure the accuracy of PT secondary voltage drop synchronous measurement and PT phase detection.
5. The measurement personnel only need to perform wiring operations, the testers will automatically measures, and the data is updated in real time, which is convenient for on-site analysis.
6. The tester adopts complete isolation technology to avoid the occurrence of safety accidents.
7. Click the "Help" button, the operation guide will pop up, no need to consult the instruction manual.
8. The tester equip with Bluetooth communication. After installing the APP, which can make the test or view the test record on the mobile phone.

Specification

Range & Accuracy

Measurement Type	Measurement Range	Accuracy	Resolution
Voltage	2V～700V	±0.3%Fs	0.0001V
Current	0.001A-20A	±0.3%Fs	0.0001A
Phase	0°～360°	±1°	0.1°
Frequency	45Hz～65Hz	±0.03Hz	0.0001Hz
Harmonic	2~20 times	—	—
Active Power	0.002W～7000W	±0.3%Fs	0.0001W
Reactive Power	0.002VAR～7000VAR	±0.3%Fs	0.0001VAR
Apparent Power	0.002VA～7000VA	±0.3%Fs	0.0001VA
PT Secondary Admittance	1.0mS～100mS	±0.5%Fs	0.0001mS
CT Secondary Impedance	0.1Ω～50Ω	±0.5%Fs	0.0001Ω

Technical Specification

Function	Description
Power Supply	DC7.4V, 5200mAH rechargeable lithium battery
Satellite Timing Service Accuracy	1us
Satellite Time Keeping Accurcay	50us (disconnect within 60mins)
Communication Mode	Wireless LORA(230MHz)
Wireless Communication Distance	1000m(in the open area)
Display Mode	5 inch touch color screen
LCD Size	108X65mm
Host Meter Size	210mm×129mm×68mm
Weight	Meter: 870g; Total weight:5800g(with the package)
Test Line	Two of each yellow,green,red,black voltage test line
Current Clamp	Clamp jaw sizeφ8mm, 6pcs/meter
Data Storage	Voltage-drop test :400 groups, Load test: 400groups; three phase voltage and ammper test: 400groups
Data Upload	USB interface, tester record data can be uploaded to computer, and can export the Excel format
Battery Voltage	Battery power indicator display, battery voltage lower than 10% remind to charge in time
Automatic Shutdown	15Minutes after power on, will automatic shutdown without any operation. Before shutdown will reminder
Working Time	Continue working time is 12 hours when full charge.
Power Consumption	Standby(backlight 50mA): 320mA;Working(backlight 50mA):420mA
Working Condition	Temperature:-20～50℃;Relative humidity: 0 ~ 95%HR without condensation
Accessories	Terminal meter:2PCS;Currentclampsensor: 6PCS; Test line:8PCS;Charger:2PCS;USB communication cable: 2PCS; Meter case:1PC;