Partial Discharge
voltage discharge within an insulator causing dielectric breakdown.
See Also: Partial Discharge Detection, Partial Discharge Monitors, PD, PD Test, Partial Discharge Test
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Lightning Rod Flaw Detector
PADD
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We developed the PADD for the detection of internal and external partial discharges on metal oxide lightning rods. Defects can cause radio interference in communication systems or TV images, interference whose origin is very difficult to locate. We have developed a unique technology for detecting radio frequencies for use under voltage.
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Partial Discharge Testing Equipment
AR700
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PD Defect Location in High-Voltage Equipment Insulation by Acoustic Sensors To act on deteriorating insulation the source of PD must be known.The insulation defects produce partial discharges, which emits electrical impulses, radiation of electromagnetic waves as well as acoustic signals.The AR700 measures acoustic signals with multiple sensors spread over the transformer. Then the software determines the failure location using the time difference of all incoming signals. Finally, these coordinates are shown in a 3D model of the transformer. AR700 device is used for measuring of acoustic signals on the external surfaces of gas-insulated breakers and substations, power transformers and other tank high-voltage equipment. The acoustic signals are caused by partial discharges in the insulation, which is the sigh of the defects.The advantage of “AR700” device is the quick installation of the acoustic PD sensors on the external surface of high-voltage equipment tank. The sensors have magnetic holder that is why there is no need to de-energize the equipment for the sensors installation. “AR700” device has 4 syn-chronic channels for acoustic signal measurement. This gives the possibility not only to find the defects in the insulation, but also to locate them. The location function of the “AR700”device is unique for acoustic devices.
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Partial Discharge Detection and Localization System for Power Transformers
AE-150™
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The AE-150™ is designed to detect and localize Partial Discharge activity by correlating acoustic and electric sensors’ data. The AE-150™ has many acquisition modes, each used for detecting and locating Partial Discharge activity in a transformer. The AE-150™ unit is mounted on the transformer tank using its powerful magnets that also hold four acoustic sensors. Acquired data is sent to Mirador-Tx software where all advanced positioning functions are implemented. This cutting-edge software allows easy data interpretation, reporting and monitoring.
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Multi-Channel PD System Locator
PDiagnostic Series
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Power Monitoring and Diagnostic Technology Ltd.
The PDiagnostic is a portable system that utilizes Ultra-High Frequency (UHF), Acoustic Emissions (AE), High-Frequency Current Transformer (HFCT), and Transient Earth Voltage (TEV) sensors to detect, analyze, and locate the PD signals in real time for a multitude of medium and high voltage electric power equipment.The multi-channel PDiagnostic system locates PD on power equipment down to a meter by utilizing Acoustic-Electromagnetic Combination Location Technique, Time Difference of Signals’ Arrival (TDOA), Partial Discharge Signals Separation (PDSS), and 3D Positioning Technology with PC software included.The system features advanced PD diagnostic capabilities, automatic PD type pattern recognition, and accurate PD location capabilities. The PDiagnostic is an ideal trouble-shooting tool for your PD programs. Severity is determined and maintenance suggestions are provided accordingly.
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Real-Time Online Monitoring to Detect and Analyze Potential Partial Discharge (PD) Signals and Insulation Faults using UHF, AE, and HFCT
PDMonitor
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Power Monitoring and Diagnostic Technology Ltd.
The PDMonitor, which utilizes Ultra High Frequency (UHF), Acoustic Emission (AE) and High Frequency Current Transformer (HFCT) sensors and is designed to conduct real time online monitoring to detect and analyze potential Partial Discharge (PD) signals and insulation faults before they lead to breakdown or catastrophic failure in power assets. The system provides the developing trend of the PD, when occurring, as alarms in real time, thus helping to predict the insulation degradation status of the asset, prevent sudden accidents, and provide an effective database for Condition-Based Maintenance (CBM) of power assets.
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PD Measuring System
TEM
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Partial discharge test system for laboratory or on-site measurement according to VDE 0434, IEC 60270 and EN50178 consisting of:*Partial discharge meter TMG*High-voltage coupling capacitors for decoupling of the PD pulses*Partial discharge calibrator TPK for determining the correction factor in the PD test circuit
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Software
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The MSPS Software offers complete remote control of the partial discharge test set TPP.It is built ontop of a powerful database and offers the following possibilities. It is especially designed for use in a continious manufacturing test environment within a quality management system.
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Qualification and Quality Control Tests
Techsquare
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New IEC standards, IEC 60034-18-41 and IEC 60034-18-42, have been issued to define the procedures for testing partial discharge inception voltage and the long-term performance (endurance) of Type I and Type II insulation systems used in rotating machines fed from voltage converters. Voltage impulse generators are required at least to test turn insulation, but they would be recommended for any testing under power electronics supply because of their capability to simulate the real electrical stress conditions. More generally, any type of electrical insulation system when subject to impulsive voltage waveform during life should be carefully evaluated in terms of partial discharge and endurance behaviour. This is why voltage impulse generators able to provide impulses with controlled amplitude and frequency are needed to face this new testing challenge.
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HV Coupling Capacitors
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Our high-voltage coupling capacitors are a main component of our partial discharge test stations. They serve to decouple the partial discharge impulses and act as a voltage divider, the output voltage of which is matched to our partial discharge measuring devices (with integrated voltage measurement) and peak voltage measuring devices. These high-voltage components are also available separately in their various designs, sizes, capacities and voltage ranges.
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Electrical Safety Testers
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A high performance electrical safety analyzer that complies to a wide range of universal standards. Hipot, Insulation Resistance, Ground Bond, Leakage Current (touch current and protective conductor current) and partial discharge can all be tested. A total of 6 models are available for standard compliance tests in a wide variety of applications including R&D, quality assurance manufacturing lines and laboratory tests.
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Discharge Units
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ENTES Discharge Units are used in capacitor banks and provide quick discharge over short periods of time.
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Dielectric Loss Tangent Testing Instruments
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Insulation materials in electrical equipment are used between a pair of electrodes; therefore it can be expressed as capacitors. Applying AC voltage to a capacitor with insulation materials causes an energy loss due to the leak current, the dielectric polarization, and the partial discharge. Because of this, the phase of the capacitor current is more delayed than that of a zero-loss current (reactive current) flowing in an ideal insulation material. The delay angle is called "Dielectric Loss Angle", and the tangent is "Dielectric Loss Tangent" (tanδ). Please refer to the technical guide explained in detail.
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Discharge Tester
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It is a new impulse winding tester that incorporates high precision, a wide range of functions, various expandability, improved operability, and a full range of external communication interfaces.
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Discharging Bars
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VARIO discharge products consist of a separate AC power supply for connecting one or more Eltex discharging components. In SINGLE discharging, the voltage generation (power supply ) is integrated in the bar.
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Partial Load Failure
PLF Device
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The control device series “PLF” has been designed to monitor the partial and/ or total failure of the alternating current absorbed by loads driven by static switches and / or electromechanical relays.
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Electrostatic Discharge Generator
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Beijing KeHuan Century EMC Technology Co,.LTD
Electrostatic discharge generator
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Safe Discharge Rods
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These instruments will allow you to conduct the safe damp discharge of the residual charge on the cable / equipment by limiting the discharge current.
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Testing Kit Discharge Machine
REOO RO-ZGX02
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REOO RO-ZGX02 Testing Kit Discharge Machine for PV Module Manufacturing is designed for PV module manufacturing, enabling stable equipment performance for photovoltaic production workflows. Built for solar factories, it supports line compatibility.
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Electrostatic Discharge Simulator
ESD61000-2
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ESD simulator (Electrostatic Discharge Generator or Electrostatic Gun) is in full compliance with IEC 61000-4-2, EN61000-4-2, ISO10605, GB/T17626.2, GB/T17215.301 and GB/T17215.322. The ESD generator is designed for the assessment of electrical and electronic equipment to withstand ESD performance. ESD61000-2/ESD61000-2A has LCD display in both English and Chinese, they equipped with an infrared remote control which can allow you do the test in some special place.
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Electrostatic Discharge Generator
STT-ESD-2005
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Beijing KeHuan Century EMC Technology Co,.LTD
The STT-ESD-2005 ESD generator meets the requirements of IEC61000-4-2 and GB/T17626.2. Its maximum ESD voltage reaches 30kV, meeting the standard's ESD voltage requirements (Level 4 air-gap discharge requires 15kV). It is also suitable for a wider range of applications and future standards. Therefore, the ESD-2005 ESD generator can be used for ESD testing of most electrical and electronic equipment, ensuring test comparability and reproducibility.
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Battery Discharger & Capacity Tester
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Fuzhou Fuguang Electronics Co., Ltd.
Battery Discharger & Capacity Tester
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20KV 30KV Electrostatic Discharge Generator ESD
ESD-202AX
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Shenzhen Chuangxin Instruments Co., Ltd.
ESD simulator is in full compliance with IEC 61000-4-2, EN61000-4-2, ISO10605, GB/T17626.2, GB/T17215.301 and GB/T17215.322. The ESD generator is designed for the assessment of electrical and electronic equipment to withstand ESD performan
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Battery Discharge Capacity Tester
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KV Hipot Power Test Equipment Co.,Ltd
Battery Discharge Capacity Tester is used to perform discharge testing which is the verifiable method to determine actual capacity of battery systems.
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Battery Discharger & Capacity Tester
IDCE-8X0
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Fuzhou Fuguang Electronics Co., Ltd.
Wide Range: IDCE-8X0CT series can cover 10V~480V for multiple batteries test requirements like telecom (48VDC), powerutilities (110VDC, 220VDC), UPSs (300-60 VDC), traction batteries(12-96VDC)etc.
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FM/ATEX Approved Static Discharge Cable Reels
Cen-Stat Static Discharge Reels
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Retracting cable reels are an alternative solution to using retractable Cen-StatTM spiral cable. They are normally specified for locations where there is a preference for ensuring process operators stow grounding clamps correctly for good "housekeeping" purposes when the clamps are not in use.
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Electrostatic Discharge Test
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The electrostatic discharge test is designed to determine the ability of equipment to perform its intended function without permanent degradation of performance as a result of an air discharged electrostatic pulse. Electrostatic discharge is the result of an unbalanced electrical charge. Typically, it is created by insulator surfaces rubbing together or pulling apart. A transfer of electrostatic charge between bodies (materials, components, etc.) at different electrostatic potentials is caused by direct contact.
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Battery Discharge and Capacity Testers
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HD Power Test Equipment Co.ltd
HDFD Battery Discharge Tester can be used as the discharge load in the battery off-line state to realize the constant discharge at the set value by regulating continuously the discharge current. When discharging, the tester will automatically stop discharging when the voltage on the battery group terminal or the cell falls to the set lower limit value, or when the set discharging time is out, or when it reaches the set discharging capacity. Battery Discharge Tester can records all valuable and continuous real-time data during the discharge process.This tester system is simple, safe and accurate for monitoring voltage of cells adopting wireless connection.
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Battery Discharger & Capacity Tester
IDCE-CT
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Fuzhou Fuguang Electronics Co., Ltd.
Each wireless module can monitor 4 batteries simultaneously comparing with the traditional method that each module only canmonitor 1 battery, the new wiring operation become easier because the quantity of new modules needed is only a quarter of old-fashioned modules.
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Electrostatic Discharge
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Our electrostatic discharge (ESD) measurement and control solutions include charge plate monitors, sensors, resistivity meters, and voltmeters. Reliably monitor, measure, locate, and test for static electricity.
