Partial Discharge
voltage discharge within an insulator causing dielectric breakdown.
See Also: Partial Discharge Detection, Partial Discharge Monitors, PD, PD Test, Partial Discharge Test
-
product
Spiral Antenna UHF Trafo
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...show more -
product
Partial Discharge Tester (Dry Type)
Partial Discharge testing is a way of detecting voids or imperfections in insulators that would lead to overheating and breakdown under normal operating conditions. Due to the nature of the signal being measured, this test is very susceptible to electronic and RF noise and a proper corona-free properly isolated test chamber is required.
-
product
Ultrasonic Partial Discharge Detector
HTJF-9003
Wuhan Huatian Electric Power Automation Co., Ltd.
Used for on-line detection and localization of partial discharge in high voltage equipment.
-
product
Partial Discharge Test Set Up
This testing set is of great use in industries for various testing applications. We strictly follow all the guidelines while manufacturing this Partial Discharge Test Set Up.
-
product
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.
-
product
PDIV Tester for EV Motor
PDIV 500-T
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 enviro...show more -
product
Partial Discharge Meter
TMG
The partial discharge meter TMG was developed for Partial Discharge tests according to VDE 0434 and IEC 60270.
-
product
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.
-
product
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.
-
product
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.
-
product
Tan Delta Measurement
TD Series
While partial discharge measurement is suitable for detecting electrical trees, tangent delta measurement – also referred to as dissipation factor measurement – detects water trees which have formed in the insulation of the device under test.
-
product
Portable PD Analyzer
AQUILA
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.
-
product
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.
-
product
Partial Discharge and Tan Delta
PDIX Series
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.
-
product
PD Monitoring systems
TECHIMP PD Hub™
Techimp’s Partial Discharge (PD) Monitoring systems usually consists of a Central Unit and distributed Data Acquisition Units – the PD Hub™ - able to acquire and process the PD signals locally detected through PD sensors installed on each of main electrical assets (generator, transformer, HV cables and GIS).
-
product
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.
-
product
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.
-
product
Partial Discharge Test Equipment
Wuhan Huatian Electric Power Automation Co., Ltd.
Partial discharge detectors for high voltage equipment.
-
product
UHF PD Detector
Handheld online PD substation surveying system. The UHF PD Detector is the ideal tool for quick, non-invasive surveys in MV and HV substations and should be part of the toolkit for all maintenance and service teams. Due to its high measurement bandwidth, the UHF method provides accurate local online partial discharge (PD) measurements on HV components such as cable end-terminations, surge arrestors, voltage transformers and isolators.
-
product
Partial Discharge Detecting Detectors
Hangzhou Xihu Electronic Institute
Including pulse current PD detecto, high frequency PD detector, transient earth PD detector, ultra high frequency PD detector, and ultrasonic PD detector.
-
product
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 t...show more -
product
Inductive Sensor
HFCT Ø 30-39-50mm
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.
-
product
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 stres...show more -
product
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.
-
product
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.
-
product
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.
-
product
Partial Discharge Testing Equipment
AR700
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 coordina...show more -
product
Partial Discharge Monitor
INDIPARD
INDIPARD, a low-cost measuring device for partial discharge monitoring.
-
product
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.
-
product
Conventional Power Supply Design with Simple Analog Controls
VLF Series
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.
