Portable Metal Oxide Surge Arrester Tester Lightning Protection Surge Test Measuring Tool

• After-sales Service: Lifetime Technical Support
• Warranty: 1 Year for Zinc Oxide Surge Arrester
• Type: Oxide Surge Arrester Tester Lightning Protection
• Accuracy Grade: 1
• Load Way: Electronic Load
• Loading Method: Dynamic Load
• Model NO.: GDZL-306
• Display: Digital
• Control: Manual Control
• Weight: 7.5kg
• Power Source: AC220V
• Product Name: Zinc Oxide Surge Arrester
• Test Standard: IEC 60099-4
• Lithium Battery Parameter 1: Charging Time > 2.5 Hours
• Lithium Battery Parameter 2: Continuous Working Time > 7 Hours
• Lithium Battery Parameter 3: Intermittent Working Time > 7 X 24 Hours
• Power Supply: Built-in Lithium Battery Power Supply or DC8.4V Ad
• Transport Package: Wooden Case
• Specification: 42*34*18cm
• Trademark: GOLD
• Origin: Chongqing, China
• Production Capacity: 200sets/Month

Product Description

Portable Metal Oxide Surge Arrester Tester Lightning Protection Surge Test Measuring Tool
 

Item Intro

The Zinc Oxide Lightning Arrester Electrified Tester is a specialized instrument used to detect the electrical performance of zinc oxide lightning arresters. This instrument is suitable for electrified or de-energized testing of zinc oxide lightning arresters of various voltage levels, in order to promptly discover dangerous defects inside the equipment such as insulation dampness and valve aging.

Signature Features

Operation is simple and convenient, with the entire measurement process controlled by the human-machine interface. It can measure the total current, resistive current and harmonics, reference voltage and harmonics at power frequency, effective power and phase difference of zinc oxide lightning arresters. The large screen can display the true waveforms of voltage and current.

The instrument employs digital waveform analysis technology, using software interference rejection methods such as harmonic analysis and digital filtering to ensure accurate and stable measurement results. It can accurately analyze the fundamental wave and 3rd to 9th harmonic content, and overcome the influence of phase sequence interference to correctly measure the resistive current of the line lightning arrester.

Lightning Arrester Measurement Principles

To determine whether a zinc oxide lightning arrester has aged or become damp, the typical method is to observe changes in the resistive current flowing through the arrester under normal operating voltage. Specifically, check if the resistive leakage current has increased, as this indicates aging or moisture issues.

The resistive leakage current often only accounts for 10-20% of the total current. Therefore, it is difficult to ascertain changes in the resistive current by only observing variations in the total current. The resistive leakage current must be separated from the total current.

This tester relies on a voltage reference signal, rapidly collecting the reference voltage and arrester leakage current data. Through harmonic analysis and fast Fourier transform, the resistive components (fundamental wave and harmonics), capacitive components, etc. are calculated separately.

Resistive current fundamental wave = Total current fundamental wave * cosφ, where φ is the phase angle difference between the total current and the voltage fundamental wave.



Measurable Attributes
 

Power supply	built-in lithium battery power supply or DC8.4V adapter
Measuring range	Leakage current: 0-20mA (expandable); (Optional: current clamp sensor 0-20mA.) Voltage: 30-250V (expandable);  (Optional: electric field strength input range: 30kV/m~300kV/m.) Angle: 0-360º Resistive Current: 0-20mA (Expandable) Capacitive current: 0-20mA (expandable);
Measurement accuracy	Current: full current >100μA: ±5% reading ±1 digit; Voltage: Reference voltage signal >30V: ±5% reading ±1 digit.
Measurement parameters	Leakage current: full current waveform, fundamental RMS value, peak value. Leakage current resistive component: waveform 1, 3, 5, 7, 9 times RMS. Positive peak Ir+ Negative peak Ir-. Capacitive current fundamental waveform. Voltage: Voltage waveform, voltage RMS. Phase angle difference, power consumption.
Voltage reference signal sampling method	Wired synchronisation: 40m (expandable) Wireless synchronisation: >1500m (expandable)
Lithium battery parameters	Charging time > 2.5 hours Continuous working time > 7 hours Intermittent working time > 7 x 24 hours
Size	42*34*18cm
Weight	7.5kg

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