PD
voltage discharge within an insulator causing dielectric breakdown.
See Also: Partial Discharge, Partial Discharge Detection, Partial Discharge Monitors, PD Test, Partial Discharge Test
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PoE Testing Chassis & PD Emulation
Can test the PoE performance of the DUT. In addition, it has a function of bypassing data, supporting fast Ethernet data transmission.
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Live PD Emulation For The PSL-3424
Flexibly Mimic Class 0 to Class 8 Powered Device Per PSL-3424 Test Port. Configure up to 96 IEEE 802.3 PD’s on Any Combination of 2-Pair and 4-Pair PSE Ports with Loading up to 100W on Every Port. Emulated PD’s Automatically Handle PSE Power Demotions (Assigned Class). User-Defined Powered Device Load with Optional Cable Loss Modeling. Emulate 802.3at and 802.3bt PoE-LLDP* Negotiations and Power Adjustments (PSL-3424L). Monitor Multi-Port Live Emulation Status.
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PD Pipe & Cable Locator
PD / PD-H
Audio frequency 750cpsMaximum 100v outputFine Tune knob and LED's to easily match maximum impedanceInterrupter feature on oscillatorLCD meter on receiverReceiver loud speaker or headset useHoliday detection on buried pipe (PD/H)
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PoE PD Test Solutions
Explore PoE PD Test solutions from Sifos Technology. What type of testing does your Power-Over-Ethernet Powered Device need?
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PD Measuring System
TEM
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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Universal PD & EMI analyzer
Spark P3
Doble Spark P3 is a universal partial discharge (PD) and electromagnetic interference (EMI) analyzer that uses a software defined radio signal detector to identify characteristics of insulation system deterioration that could lead to the failure of high voltage equipment. It detects signals from suitable sensors in a frequency range between 9 kHz to 2 GHz for PD and EMI, and DC to 500k Hz for acoustic and reference voltage measurements.
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PD Free Test Transformer
Wuhan Fanke Transformer Manufacture Co., LTD
PD Free Test Transformer
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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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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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Portable PD Monitoring of Medium and High Voltage Power Equipment with UHF, AE, and HFCT
PDiagnosticM
Power Monitoring and Diagnostic Technology Ltd.
The PDiagnosticM is a portable system that utilizes UHF, AE, and HFCT sensor modules to monitor PD signals from Medium and High Voltage power equipment.The system is ideal for monitoring critical power assets to find and monitor intermittent PD signals and to analyze the developing PD trends. The PD type is determined by automatic pattern recognition and internal defects can be found at an early stage.The system provides advanced protection with alarm functions and our Deep Learning data analysis capabilities utilizing our proprietary Intelligent Cloud Diagnostic Technology.
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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).
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Handheld PD Tester
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 Testing Equipment
PD-Analyser
This is an ‘All in One’ solution for testing and analysing partial discharges in the insulation of high-voltage transformers, cables, GIS and electric machines. The DIMRUS ‘PD Analyser’ help diagnose their insulation state and find any type of defects very effectively.It can be used for temporary or constant monitoring of partial discharge in medium and high voltage systems and cables of any rated voltage.The PD Analyser is the most useful device for condition estimation of high-voltage insulation. This multipurpose device is designed for -Partial discharge measuring in high-voltage insulation at a high noise level.Fast detecting of the defects in different high-voltage equipment and identifying how dangerous they are.
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PD Coupler
Techimp Capacitive PD Couplers offer both the PD and sync signals references, allowing a thorough investigation of the signal originating inside the asset they are connected to.Techimp Couplers are individually tested according to the following international standards: IEC60358; IEC60694; IEC60270.
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Bi-Directional-Coaxial LD/PD Module
BiDi-C1000 (CWDM)
Hangzhou Huatai Optic Tech. Co., Ltd.
*Tx Laser wavelengths optical : 17 CWDM *Using DFB Lasers *DFB laser optical: with isolation or without isolation *Low threshold current and operating current* High output power *Built-in InGaAsP monitor PD* High responsivity, InGaAs planar PIN detector *Wide temperature range operation(Tc=-40℃to+85℃) *Fiber ITU-T G.657 Bending low loss, fiber optic cable features
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Positive Displacement (PD) Meters
Positive Displacement (PD) flow meters are volumetric flow measurement instruments ideal for low flow rates, highly viscous fluids, and measurement of flows involving starts and stops or pulsing. Positive displacement flow meters are similar in design to the gear pump. The principle of operation is reversed however; instead of the gears driving the fluid, the fluid drives the gears. A non-intrusive hall-effect sensor detects the movement of the gear and as each gear tooth passes the sensor, a square wave pulse is produced and a discrete volume of liquid is measured. The resulting pulse train is proportional to the actual flow rate and provides a highly accurate representation of the fluid flow.
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Power Measurements For The 3000A/T/G X-Series
D3000PWRB
The power software package for Keysight’s InfiniiVision 3000A, 3000T, and 3000G X-Series oscilloscopes enables a broad range of automated power supply characterization measurements including critical frequency response measurements (3000T/G X-Series only) such as power supply rejection ratio (PSRR) and control loop response. This package also enables hardware-based pass / fail mask testing and USB PD triggering and decode (3000T/G X-Series only).
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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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VLF Testing and Diagnostics System
PHG 70 TD/PD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 70 TD/PD. With the PHG TD/PD, you get a multifunctional cable testing and diagnostics system that was specially designed and developed for medium-voltage networks. The PHG TD/PD system is also the only cable testing and diagnostics system that gives a comprehensive overview of the quality and ageing condition of the test sample. The diagnostic methods TD and PD are mutually complementary, because on one hand you can detect the complete condition and on the other hand locate * individual faults in the operating resources.* High performance VLF truesinus testing device (3 kW) with regulated output voltageCompact, enclosed design in 19" format* Variable installation option with separate control and voltage unit* Variable connection options to cable stations of different models
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Shielded Rooms
HIGHVOLT Prüftechnik Dresden GmbH
Electromagetic field and line-conducted interference needs to be eliminated in order to measure low-intensity partial discharges with a PD background noise level (≤ 1 pC) in accordance with IEC 60270.
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Portable PD Monitoring
ASM-P
The ASM-P can be configured with up to 32 PD sensor channels. If excessive discharge is detected, the ASM-P raises an alarm that can be configured either locally or by email/SMS. This enables the long-term assessment of plant conditions to be carried out quickly and easily, from any remote computer.
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Portable PD Acquisition Unit
AQUILA
Techimp AQUILA has been expressly designed to respond to all these needs being a robust and compact portable all-in-one PD detection station providing a full range of options ideal for on field applications. It can cope with the toughest outdoor conditions while taking measurements on any electrical asset. 15 years of service experience has been condensed in this unit integrating TECHIMP innovative PD detection technology with multiple connectivity (Wi-Fi, Fiber Optics, USB, Bluetooth) and power supply.
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Valves Testing Equipment
A PD or PHD Pinhole Detector is ideal as it has an audible alarm which sounds when a fault is found. Additionally, the test voltage can be set accurately, which is particularly important when testing thin linings. A DCCT mains-powered porosity tester can be used if the process needs to be incorporated into a production line
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PPS Clamp Transformer
PPS2 provides power supply to the PD detectors installed on HV cable when low voltage AC power is not available. The PPS2 takes the required power directly from the High Voltage power line under monitoring by means of units clamped on the HV power cable(s).PPS2 is designed to withstand High Voltage line failure events such as temporary overload and short circuit conditions. An internal detection and self limiting circuitry guarantees that PPS2 and the connected equipment survives in case of such events.
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Partial Discharge Tester
GTPD-4C
GTPD-4C partial discharge comprehensive tester is the new generation of digital PD measurement and analysis instrument. The instrument has a strong ability of comprehensive analysis of partial discharge and detection of partial discharge in small signal and strong interference environment. With different accessories, it can measure and locate the partial discharge in any high voltage electrical equipment. It can realize testing the transformer partial discharge by applying the voltage on the three phases simultaneously.
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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.
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Solution for Industrial Monitoring.
PDCheck
PDCheck is a compact, stand alone, global diagnostic system for the condition assessment of medium and high voltage electrical systems, based on the detection and analysis of PD
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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 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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UltraTEV Detector
The UltraTEV Detector is the ideal instrument for initial PD surveys. EA Technology's UltraTEV Detector identifies faults BEFORE they lead to failures by testing for critical PD activity using both internal and surface sensors. This device is essential to personal safety and due to its self-explanatory LED display system requires minimal training.
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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.
