GDYZ-303 Portable Lightning Arrester Test Set Arrester Tester

• Customization: Available
• After-sales Service: Yes
• Warranty: 1 year
• Model NO.: GDYZ-303
• Charging power supply: AC 220V±10%
• Input range of PT reference voltage: 0-300V
• Transport Package: Standard Export Plywood Case
• Specification: ISO
• Trademark: HV HIPOT
• Origin: Wuhan, China

Product Description

I. General information

GDYZ-303 Lightning Arrester Tester contains below three functions:

1. Resistive current test
2. Current meter calibration of monitor
3. Counter action test of monitor

It is the special equipment of testing zinc oxide electric performance. The instrument can accurately and stably measure the arrester resistive current and the monitoring counter action parameters while the equipment is running. It can also check the monitor ammeter.

II. Features

1. 8inch color LCD touch screen, high speed thermal printer.
2. The measurement is completed by the intelligent control of the central processing unit.
3. The device can measure both wired and wireless, and the wireless transmission distance can reach more than 1000 meters, which greatly facilitates various measurement operations on the site of large substations. It is easy to operate and easy to use.
4. Using digital waveform analysis technology and software anti-interference methods such as harmonic analysis and digital filtering to make the measurement results more accurate and stable, accurately analyze the content of the fundamental wave and 3^rd to 7^th harmonics, overcome the influence of inter-phase interference, and correctly measure the resistive current of the arrester.
5. It is convenient to timely find the dangerous defects such as moisture inside the zinc oxide arrester and valve plate aging. 
6. Wireless sampling, with long distance.

A. Wired: indoor use, or on-site where the PT sampling wiring cabinet is near with tested lightning arrester.
B. Wireless: outdoor use, or on-site where the PT sampling wiring cabinet is far from tested lightning arrester, wireless distance is up to 1000M.

1. Three-phase can be measured at the same time. The resistive current of 3channels can be measured at the same time, meanwhile, there are two anti-interference modes: 1) no interference: the inter-phase angle cannot be calculated and corrected automatically under this mode; 2) With interference: the interphase interference angle can be calculated and corrected. Only one-time connection to finish measurement of ABC phase.
2. Built-in high-capacity Li-battery, suitable for no power supply field.

III. Technical Specifications

Use condition	-20ºC- 50ºC	RH<80%
Charging power supply	AC 220V±10%
Input range of PT reference voltage	0-300V
Input resistance of voltage channel	≥150kΩ (with fuse)
Measuring accuracy of PT reference voltage	± (2% of the reading+0.5V)
Measuring range of current input	0-10mA
Measurement accuracy of current fundamental	± (2% of the reading+5μA)
Measurement accuracy of current harmonic	± (5% of the reading+10μA)
Input resistance of current channel	≤1Ω
Measurement range of electric field strength	30kV/m ~ 300kV/m
Accuracy of electric field strength	±10% of the reading
Action times of monitor	0-99times
8/20μS impulse current	≥50Ap
Calibration range of current meter	0-10mA
Calibration accuracy of current meter	± (2% of the reading+5μA)
Measurement resolution	Voltage	0.001V
	Current	0.001mA
	Angle	0.001°
Battery working time	Main unit 8hours, voltage sampling box 12hours
Wireless transmission distance	1000meters and above (empty and unobstructed)
Dimension of main unit	320×270×140mm
Handheld collection probe	180×120×80mm
Weight of main unit	4kg (without accessories)