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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Horn Antenna
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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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Product
Partial Discharge Testing
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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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Conventional Power Supply Design with Simple Analog Controls
VLF Series
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VLF hipots perform voltage withstand tests and provide the voltage source for diagnostic cable testing. There is no better method for verifying the AC integrity of a cable than applying VLF AC voltage. Tan delta and partial discharge measurement accessories are frequently purchased along with VLF equipment to extend their capabilities.
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High Frequency Current Transformer
HFCT
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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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Product
Partial Discharge Measurement Calibrator
DAC-CP-2
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DAC-CP-2 is a calibrator for partial discharge measurements.The electric charge enables to generate up to max 10000pC.It is battery-operated and can be charged by connecting to the measuring instrument (DAC-PD-3).
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Electrical Safety Multi-Analyzer
TOS9300 Series
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The TOS9300 series is 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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Transformer Testing And Monitoring
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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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Spiral Antenna UHF Trafo
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UHF Spiral antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in the monitored asset. It is a broadband antenna with a flat response which makes Spiral antenna suitable in a number of different applications. It has been optimized to operate in a frequency range typical for PD activity and it was designed to provide maximum sensitivity and high gain. Its compact and robust design (passive sensor) makes Spiral antenna the optimal sensor for direct installation on high voltage Transformers. It can be virtually applied in any electrical equipment provided that it has apertures or EM transparent surfaces. Contact our sales department for consulting.
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Partial Discharge Testing Of Transformer & Localization System
AE-150™
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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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Sensor Technology
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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 Measuring Equipment
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Different from a conventional partial dischargemeasuring set provided with a fixed testingfrequency, Model DAC-PD-5 is newly designed toselect the center and the bandwidth of testingfrequencies so that partial discharges emitting in anoptional frequency in the range of a specifiedbandwidth can be detected. Generally, partialdischarges are measured in a wide band frequencythough; the detecting sensitivity must be lowered inorder to detect partial discharges partially.DAC-PD-5 has a wider bandwidth and can measurepartial discharges in a high sensitivity by bypassingnoises emitting bands.
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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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Partial Discharge and Tan Delta
PDIX Series
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PDIX is a combined partial discharge and tan delta cable diagnostic testing system. By combining HVI’s VLF products with PDIX products, users can perform VLF AC withstand, partial discharge detection, and tan delta measurement on medium and high voltage cables, rotating machinery, and other apparatus with one integrated package fully supported by HVI & PDIX.
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AC Insulation Testing
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Weshine Electric Manufacturing Co., Ltd
High-voltage Dividers (High Potential Divider) are used to measure voltages and decouple partial discharges in high-voltage test systems. Depending on the specific type, they are used to measure alternating voltage (AC), direct voltage (DC), lightning impulse voltage (LI), and switching impulse voltage (SI) systems. High-voltage dividers by HIGHVOLT comply with the relevant IEC standards. The systems are available for both indoor and outdoor use.
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Expert Partial Discharge Detector
XDP-II™
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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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Portable PD Analyzer
AQUILA
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A compact and portable Partial Discharge acquisition unit, which allows to detect and analyze partial discharge activities in all electrical assets: from power cables to transformers, rotating machines and switchgears, together with the right combination of sensors and accessories. AQUILA comes with a full range of options, ideal for field testing.
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Product
Flexible Magnetic Coupler
FMC
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The FMC (Flexible Magnetic Coupler) is a partial discharge sensor whose working principle is based on a direct magnetic coupling with the cable conductor and shield.It picks up a magnetic signal given by PD activity. His compact and robust design makes the FMC the optimal sensor for direct installation on cables and accessories such as joints and termination.This sensor has a sensitive side which has to face to the object under test, while the other side (shielded) reject the noise from the environment.
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Product
Partial Discharge Test Set
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We are an unparalleled name in the industry, engaged in manufacturing and exporting Partial Discharge Test Set that is broadly used for instrument transformers to test the discharge of voltage. This test set is manufactured in compliance with set international quality standards using optimum quality components under the observations of our experienced professionals. Further, it is made available in several specifications to meet the exact requirements of the clients. Our offered Partial Discharge Test Set can be owned from us at nominal prices.
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Handheld PD Tester
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Weshine Electric Manufacturing Co., Ltd
TEV partial discharge inspection instrument uses two emerging technologies, transient-to-ground voltage (TEV) measurement and ultrasonic (US) measurement, to detect faults in switchgear. The equipment is portable and easy to operate. The TEV sensor is attached to the wall of the box, and the US sensor scans and detects along the gap on the switch cabinet.
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Partial-discharge Detection System
GDYT Series
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GDYT series include partial discharge power frequency testing transformer(YDTW),partial discharge detector(GDJF2008),Isolation filter frequency doubling power device(GDSF-81G) and power frequency withstand voltage control table(GDYD table).It widely used in electrical manufacturing,power operation departments, research institutes and universities.
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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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Inductive Sensor
HFCT Ø 30-39-50mm
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Techimp HFCT is an inductive sensor for partial discharge measurements. It is suitable for on/off line PD tests on many electrical systems (cables, transformers, rotating machine, etc..). It has to be applied to the ground connection of the system to be tested.
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Advanced Handheld Partial Discharge Detector
PDetector
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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.
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Partial Discharge Locator
INDIPOINT
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Ultrasonic directional microphone for the location of PD The very best maintenance instrument for partial dischargetrapping in medium and high voltage plant.
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Partial Discharge Inductor
Tracy
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Cable testing and diagnostics with the BAUR tracy. The BAUR tracy partial discharge inductor induces a signal at the apparent fault location in the cable from outside. In combination with any PD measurement system, e.g., PHG TD/PD, the induced signal can be located and compared with the result of the partial discharge pre-location. The partial discharge location can thus be determined precisely.* Portable, battery-operated signal coupling device* Suitable for cables and cable accessories* Inductive signal coupling* Aviods costly, unnecessary replacements of PD-free cable accessories
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PDIV Tester for EV Motor
PDIV 500-T
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Shanghai Dean Electrical Co., Ltd
Differing from partial discharge with high frequency pulse which produce sound and light phenomenon, the power frequency AC voltage reaches a certain threshold, can only produce instantaneous current leakage around the tested sample, it can be detected through discharge capacity (unit: PC) to evaluate partial discharge phenomena..The instrument PDIV 500-T is designed to put samples such as enameled wire, insulation paper/film, and electric motor stator in the High temperature / humidity environment chamber, applying a power frequency voltage with a programed rising speed, and prefect ground connection must be guaranteed , through the coupling capacitor as the medium, the continuous detection of discharge capacity against the voltages will create formulation between the Voltages and discharge capacities (pc), the software will find the discharge voltage threshold called PDIV.
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Product
PD (Partial Discharge) Tester
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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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Solution for Industrial Monitoring
PDScope
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Techimp PDSCope is a brand new product of the PDCheck family particularly designed to suit all the requisites of the Techimp TiSCADA systems for on-line monitoring of diagnostic quantities in electrical assets.Techimp PDSCope is a powerful PD analyzer based on Techimp TF Map technology (patented) allowing preliminary noise rejection and automatic calculation of statistical parameters relevant to Partial Discharges.
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Partial Discharge Detector
APD-ANNUNCIATOR
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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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Product
Portable GIS Partial Discharge Detector
JHPD-10
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Xiamen Jiahua Electrical Technology Co.,Ltd
JHPD-10 quickly and accurately detects various kinds of partial discharge signals that occur with insulation defects in GIS. Attached on the surface of GIS the detector collects the inside discharge signal of impure gas, suspension potential and solid insulation material. The diagnostic software analyzes the fault character and locates the fault to avoid electricity accident. The device is for daily patrol inspection with high efficiency and easy operation features. Designed with two UHF signal channels, one detects the partial discharge signal; another excludes the disturbance signal like corona discharge in the air and mobile phone communication.
