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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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Partial Discharge Detector
APD-ANNUNCIATOR
The APD-ANNUNCIATOR is a remote partial discharge detection equipment inside any energized cabinet. The probe is installed in the unit under test, instantly reporting its status. This equipment gives a great benefit because it avoids long term damage to the switching equipment.
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Partial Discharge Testing Of Transformer & Localization System
AE-150™
The 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.
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PD (Partial Discharge) Tester
Weshine Electric Manufacturing Co., Ltd
Using the Windows system operating platform, you can freely choose ellipse, straight line, sine wave display, two-dimensional, three-dimensional graphic analysis mode, spectrum window, Q-V-F three-dimensional characteristic window, and static detailed measurement, observation and analysis of partial discharge pulse of one-cycle test voltage .
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Partial Discharge Pulse Calibrator
TPK
Partial discharge puls calibrator TPK is a battery-powered handheld device for determining the correction factor in a Partial Discharge test circuit and to verify the Partial Discharge measurement.
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Advanced Handheld Partial Discharge Detector for Electric Power Equipment with Multi-Sensor and Cloud Diagnostic Technologies, Data Management Software, and Test Management App
PDetector
Power Monitoring and Diagnostic Technology Ltd.
The PDetector is an ideal device for On-Line Partial Discharge (OLPD) testing of MV and HV equipment which employs all 5 types of OLPD sensor technology: Ultra-High Frequency (UHF), Acoustic Emissions (AE), Ultrasonic, High Frequency Current Transformer (HFCT), and Transient Earth Voltage (TEV). The information from multiple sensors gives the PDetector the versatility to detect all types of PD in all types of substation apparatus. The exact type of PD activity can be determined effectively using multiple on-screen data spectrum analysis. The PDetector greatly simplifies and standardizes the routine OLPD testing procedure by using the Intelligent Patrol function, the PDetector App, and the PMDTCloud. It is a very powerful and helpful tool for substation operators to conduct routine testing in a substation quickly, to determine what the issue is, and where it is located.
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RFI & Acoustic Signal Surveyor
DFA300
Use the Doble DFA300 to identify and locate insulation defects.This surveying tool combines radio frequency interference (RFI) and acoustic emission (AE).The The DFA300 partial discharge detector can locate partial discharge (PD) in a few seconds. Designed for surveying live, high voltage apparatus, its versatility makes it the perfect, multi-purpose tool for condition-based maintenance programs.
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Compact Ultrasonic Testing Device
SONAPHONE® Pocket
With the SONAPHONE Pocket you identify problems even before they arise and create value at all levels of your company. Just by detecting and eliminating leaks you can reduce the energy costs for your compressed air system up to 30 percent. This also has positive effects on your operational safety and system productivity through early warning of bearing failure and evidence of partial electrical discharges.
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Partial Discharge Detection and Localization System for Power Transformers
AE-150™
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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Partial Discharge Measuring Equipment
Electro Mechanical Enterprises
Partial discharge instruments have two modes of Wide Band and Low Frequency. You can use it for Partial Discharge tests of High-Voltage Equipment, Insulation Materials, High-Frequency Equipment, and Power Semiconductor devices. Partial discharge Measuring Equipment can easily realize the test of Partial discharge on print-circuit boards, connectors, semiconductors, small motors and other insulation materials, to make a judgment on good / bad of them
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Partial Discharge Detection Calibration Device
Hangzhou Xihu Electronic Institute
Calibration Device of Transient Earth Voltage PD detector, calibration device of ultrasonic PD detector, calibration device of high frequency PD detector, calibration device of ultra high frequency PD detector.
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Cable Partial Discharge (PD) Spot Testing And Locating
PrecisePD
PrecisePD is an on-line PD Spot Testing and PD location system for Cables and Switchgear with advanced signal processing, used for the detection of PD in high noise environments.
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Dielectric Loss Tangent Testing Instruments
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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Partial Discharge Measurement and Analysis System
UHF 800
Our UHF 800 is a system for measuring and analyzing partial discharges in the ultra-high frequency (UHF) range in testing environments with high levels of external noise.
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TEV Antenna
TEV sensor is a partial discharge sensor whose working principle is based on a direct Capacitive coupling with a Switchgears earthed metal case. The two ends of TEV sensor can be coupled magnetically to virtually any opening on a metal Surface. It picks up the electric signal given by PD activity onto the two metallic surfaces. Thanks to its special design has high sensitivity, larger than other single ended TEV sensors. His compact and robust design (passive sensor) makes the TEV the optimal sensor for direct installation on medium voltage Switchgears.
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Field Testing Services
Power Monitoring and Diagnostic Technology Ltd.
PMDT offers three levels of testing services both domestically in the US and globally. With the best quality products, complete PD solutions, rich on-site testing experience, experienced partial discharge experts and field engineers, PMDT also provides PDExpert Services -- professional on-site partial discharge detection and location services to help the customers find the potential risks, evaluate the operating status of the electrical assets, and deliver complete and final problem solutions.
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Partial Discharge Testing Equipment
3i
The portable multipurpose 3i device (Intellectual Insulation Indicator) is for eff ective high-voltage equipment insulation monitoring on-line. The 3i device measures and analyses partial discharges (PD). For eff ective PD measurement and noise rejection, there are two types of sensors used in the device: the acoustic sensor and the TEV sensor. Both the sensors are built into the device case, and so do not need any connection cables. The device is supplied in a strong metal case; at the faceplate there are the colored screen and two buttons: power button and function button.
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Portable Switchgear Partial Discharge
PD-SG1
The PD-SG1 is a dual transducer Switchgear PD detection instrument. The unit detects TEV signals generated by internal discharge, as well as acoustic discharge generated by surface tracking or corona.
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Sensor Technology
Power Monitoring and Diagnostic Technology Ltd.
PMDT is the only manufacturer to utilize all 5 types of online partial discharge sensor technology. Using multiple sensing methods ensures that PD activity is always discovered, located, and characterized. PMDT's handheld PDetector and PDStar units have more capability than the high-end diagnostic equipment of the past. The small handheld, battery powered unit can completely perform the test and analysis without the need of a PC. PDetector, PDStar, and PDiagnostic instruments feature high-resolution phase-resolved analysis of PD signals (PRPD and PRPS) in real time, so you get your test results instantly!
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Partial Discharge Meter
TMG
The partial discharge meter TMG was developed for Partial Discharge tests according to VDE 0434 and IEC 60270.
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Insulation Resistance Meter
AMIC-15k1
*The partial discharge indicator PDI.*Diagnosis of insulation systems based on standard measurements of IR, DAR, PI, SV, RT, DD*Allows to test the electrical durability of the tested object - indication of breaking voltage.*The high resistance to electromagnetic interference ensures uninterrupted operation in power plants and near high-voltage transmission lines up to 1200 kV AC and 500 kV DC.
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Horn Antenna
Horn antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in electric assets like GIS and GIL or MV and HV power transformers. It is a broadband antenna with a flat response which makes Horn antenna suitable in a number of different applications. It has been optimized to operate in a frequency range suitable for PD activity monitoring and it was designed to provide maximum sensitivity and high gain.
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High Frequency Current Transformer
HFCT
The HFCT is a high frequency current transformer designed specifically for picking up partial discharge signals. It has a split core ferrite to allow retrospective fitting to earth straps without the need for disconnection. The durable body has a hinge and a quick release latch, making use quick and easy. The HFCT is constructed with an aluminium body to provide RF shielding and improved performance in noisy environments.
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Online PD Spot Tester
Liona
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR liona. Liona is a portable online PD spot tester for measuring and locating partial discharges in cables and switchgear during normal mains operation. Liona lets you test cable systems and electrical equipment online without switching off partial discharge activities, and then generate trend analyses. Even a PD spot test (duration: 5-10 minutes) is capable of reliably assessing the current status of your system.* Automatic PD detection during normal mains operation (without switching off the cable route)* With DeCIFer technology: PD identification based on 500 million measurement results* Precise online PD mapping with PD transponder
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C Series Digitizer Module
The C Series Digitizer Module takes both high-speed and high-resolution time- and frequency-domain measurements. It features up to four channels that can sample at speeds up to 20 MS/s—ideal for discrete detection of signals 10 MHz and smaller for applications such as fault detection, partial discharge analysis, and acoustic measurements. The module's store-and-forward architecture allows up to 128 Mbits of measurement data to be sent back to the CompactRIO Controller and analyzed. You can use the module as part of a CompactRIO system and use the LabVIEW FPGA Module to develop an advanced trigger based on low-speed streaming for added flexibility. This digitizer includes the NI-DAQmx driver and configuration utility that simplifies configuration and measurements. NI-DAQmx supports NI programming environments and Python, ANSI C, C#.NET, and MathWorks MATLAB® software.
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Partial Discharge Analysis System
MPD 500
Wuhan Sangao Electrical Test Installations Limit Co.
Partial Discharge Analysis System
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Expert Partial Discharge Detector
XDP-II™
The well-established XDP-II™ is a battery-operated portable device allowing partial discharge detection and analysis. The data is saved in its internal memory for local or further analysis on the PC-based XDP-SOFT™. Paired with the proper accessories, the XDP-II™ becomes a powerful solution for many applications such as Cable Joints and Elbows, Switchgear, Offline, Acoustic, TEV, Rotating machines, Transformer, etc…
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Gas-Filled Ultralight Testing Transformer
5KVA/5KV
Wuhan Sangao Electrical Test Installations Limit Co.
Inflatable Ultralight Non Partial Discharge Testing Transformer is a high-end testing transformer which firstly marketed in China by our company. The high-light characteristic of the equipment reflects the smallness in size, lighter in weight clean ,oil-free,unnecessary static of field investigation ,longer working life without maintenance and slightness in non-partial-discharge. It is used for the insulators' voltage-resistance testing .
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Qualification and Quality Control Tests
Techsquare
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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Transformer Testing And Monitoring
Can detect the symptoms of transformer failure by monitoring the cooling system, load tap changer, dissolved gas, bushing power factor and capacitance, partial discharge, oil levels, pressure, temperatures and more.
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Partial Discharge Monitor
doblePRIME PD-Guard
The doblePRIME PD-Guard continuously monitors partial discharge (PD) in equipment such as transformers, rotating machines, cables and switchgear.The doblePRIME PD-Guard provides local alarms and will communicate data and notifications across standard interface channels and through to networked supervisory systems. It analyzes RF emissions in the HF, VHF and lower UHF ranges.
