Circuit Breaker Analyzer

Zinc Oxide Surge Arrester On-Line Tester | XHDD405 Wireless Series The XHDD405 wireless series zinc oxide arrester on-line tester is designed for live and power-off inspection of ZnO arresters at any voltage level, enabling early detection of critical faults such as internal insulation moisture and valve plate aging. It is capable of measuring total current, resistive current and harmonics, power frequency reference voltage and harmonics, active power and phase difference.

XHZK1620 Low Voltage Short-Circuit Impedance Tester — a portable instrument for on-site and laboratory low-voltage short-circuit impedance measurement of 35kV and above main transformers, used to check whether windings have deformed after short-circuit or mechanical impact. Overview The low-voltage short-circuit impedance test is the most direct method to check whether the windings of a transformer have deformed after it has been subjected to a short-circuit current impact,

XHBX1502 变压器绕组变形阻抗测试仪 ——一款USB连接的诊断仪器,采用频率响应分析(FRA)方法和电抗方法检测63kV-500kV电力变压器的内部绕组故障,并具有自动分析和Word报告输出功能. 概述 XHBX1502测量变压器内部绕组特性参数,并采用频率响应分析(FRA)方法——一种无损的内部故障检测技术——对变压器内部故障进行精确判断.它适用于63kV～500kV电力变压器的内部结构故障检测. 变压器一旦设计和制造完成,其线圈和内部结构便已固定,因此每个线圈的频域响应也随之固定,三相之间保持可比性.然而,测试过程中的匝间或相间短路,运输过程中的冲击,以及短路和故障情况下的电磁力都可能导致绕组分布参数发生变化,从而改变原始频率响应(幅值变化和谐振点偏移).通过量化这些响应变化——包括幅值,频率范围和变化趋势——测试人员可以确定绕组变形程度,并有助于判断变压器是否严重损坏或需要大修. 该仪器由一台笔记本电脑和一个基于单片机的高精度测量系统组成.它结构紧凑,操作简便,只需阅读使用手册或经过简短的培训即可使用. 主要特点 用于采集和控制的 高

Accurate and Innovative Circuit Breaker Analyzer for Lightning Arrester Monitoring in Power System Lightning arrester monitors are widely used in substations across China, where their operational status directly impacts power system safety. These monitors track lightning arrester actions and leakage current. However, factors like moisture ingress due to poor sealing can cause component rusting, leading to malfunctioning counters and inaccurate leakage current readings. Annual

The XHHL3200 is a high-precision, digital switching test instrument developed by the company in accordance with the IEC standard and the latest Chinese electric power standard DL/T845.4-2004. Using high-frequency, high-power constant-current switching power-supply technology, it measures contact resistance at the micro-ohm level. Output current and measured resistance are shown together on a 7-inch high-brightness touch color LCD, and measurement results can be output as

SF6 Leak Detector (Quantitative) Model: XHJL306 | Quantitative SF6 Gas Leak Measurement | 0.01-500ppm for Circuit Breakers Product Overview This quantitative SF6 leak detector is designed for accurate measurement of sulfur hexafluoride gas leakage from circuit breakers and SF6-filled equipment. The working principle is based on the fact that when the concentration of SF6 gas in the air changes, the ionization degree of the mixed gas under the action of a high-frequency

Handheld Zinc Oxide Surge Arrester Live Tester | XHDD405 Wireless Series The XHDD405 handheld live-line tester is applicable to live and off-line testing of zinc oxide arresters at all voltage levels. It can detect potential risks such as internal insulation dampness and valve block aging in a timely manner, helping maintenance teams act before failures occur. It measures total current, resistive current and harmonics, power frequency reference voltage and harmonics, active

SF6 Gas Leak Detector (Qualitative) Model: XHJL306 | LCD Display SF6 Leakage Detector for Substation Equipment Product Overview The XHJL306 SF6 gas leak detector is a qualitative detection instrument for sulfur hexafluoride leakage. Its principle lies in the variable ionization level of the gas mixture exposed to high-frequency electromagnetic fields, which is directly correlated with the concentration of SF6 in the air; the SF6 concentration is then determined by measuring

Lightning Arrester Monitor Calibrator | XHJS401A Lightning arrester monitors are widely used in substations across China, where their operational status directly impacts power system safety. These monitors track lightning arrester actions and leakage current. However, factors like moisture ingress due to poor sealing can cause component rusting, leading to counter malfunctions or inaccurate current readings. Annual inspections are mandated by regulations, making this

Portable SF6 Leak Detector | Sulfur Hexafluoride Qualitative Tester | XHJL307 The XHJL307 Portable SF6 Leak Detector is a lightweight, handheld sulfur hexafluoride qualitative leak detection instrument weighing only 560g, designed for fast field inspection of SF6-insulated electrical equipment. It enables maintenance teams to quickly locate sulfur hexafluoride leaks in GIS switchgear, circuit breakers, bus ducts and other gas-insulated apparatus, helping prevent insulation

Product Overview The Surge Arrester Monitor Calibrator is designed specifically to cater to the requirements of DC-type arrester monitors (e.g., Model JCQ(WZ)-16) in power systems. This equipment is primarily applied to calibrate arrester monitors of the 1000kV class, ensuring that the on-line leakage current readings and action counter records provided by the monitors are accurate and trustworthy. Regular calibration of arrester monitors is an important part of preventive

Surge Arrester Monitor Calibrator Model: XHJS401A | For 1000kV-Class DC Arrester Monitors Product Overview The XHJS401A surge arrester monitor calibrator is an independently developed precision test instrument designed to meet the calibration needs of DC surge arrester monitors used in power systems, such as Model JCQ(WZ)-16. It is mainly used for the calibration of 1000kV-class arrester monitors, delivering stable measured values, strong anti-interference heterodyne output

SF6 Gas Comprehensive Analyzer | 3-in-1 Tester | XHJL309 Boasting the combined capabilities of a micro-moisture meter, a purity analyzer and a decomposition product detector, this all-in-one SF6 gas comprehensive analyzer eliminates the need for three individual instruments. A single on-site measurement can finish three indicator tests, which not only saves two-thirds of the gas consumption per test but also ramps up work efficiency remarkably. Sulfur hexafluoride (SF6) is

XHJB612 Relay Protection Calibrator — a portable instrument for calibrating single-phase protection relays in high and low voltage power distribution systems, combining current and voltage sources and a digital stopwatch in one unit. Overview The XHJB612 is a new type of instrument for calibrating single-phase protection relays in various high and low voltage power distribution systems. Its performance and testing methods are designed around the “New Compilation of Protection

Zinc Oxide Surge Arrester Live Tester | Wireless Series XHDD405 The XHDD405 wireless series live arrester tester supports both live and off-line detection for zinc oxide arresters of all voltage classes, effectively identifying risks including insulation dampness and valve element degradation. It measures total current, resistive current and harmonics, power frequency reference voltage and harmonics, active power and phase difference. The large-screen display shows real

Surge Arrester Counter Operation Tester | XHJS401 The XHJS401 surge arrester counter operation tester is specially developed by our technical staff to address the specific requirements of power users for on-site testing of lightning arrester discharge counters. It boasts a sleek appearance and is convenient to carry and use, making it an ideal replacement for the old, heavy testing instruments and inefficient testing methods. The tester outputs a high-voltage pulse of 800 ~

Split Type SF6 Leak Detector (Qualitative) Model: XHJL306 | 0.01-500ppm SF6 Gas Leakage Detection for Circuit Breakers Product Overview The XHJL306 split type SF6 leak detector is a qualitative gas leakage detection instrument for sulfur hexafluoride (SF6) equipment. It works on the principle that fluctuations in the concentration of SF6 in the air lead to corresponding changes in how much the mixed gas is ionized when subjected to a high-frequency electromagnetic field. By

XHYZ1668 On-Load Tap Changer Waveform & Transition Resistance Tester — a portable instrument that measures the transition waveform, transition time, instantaneous transition resistance and three-phase synchronism of transformer on-load tap changers. Overview The on-load tap changer is the only moving part connected to the transformer circuit, so its testing has drawn increasing attention. The applicable handover and preventive test regulations require checking the operating

XHYY102 Transformer Insulation Oil Dielectric Strength Tester — a fully digital instrument that checks the dielectric strength (breakdown voltage) of transformer insulating oil up to 80kV, with automatic microcomputer control. Overview The XHYY102 is a high-accuracy, fully digital industrial instrument developed in accordance with the national standard GB507-1986 and the industry standard DL/T846.7-2004 . To suit different users, the series is available in single-cup, three

SF6 Gas Analyzer — Humidity, Purity & Decomposition Tester Model: XHZH309 | 3-in-1 SF6 Comprehensive Tester for Power Testing Product Overview The XHZH309 SF6 comprehensive tester integrates a moisture meter, an SF6 purity meter and an SF6 decomposition products analyzer into a single instrument, replacing the functions of three separate devices. With one site survey, the operator completes the detection of all three indicators, saving up to two-thirds of the measurement gas