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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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PIN-TIA
The fiber-optic coaxial PIN-TIA receiver module is designed for SONET/SDH fiber-optical communicationnetworks, using reliable InGaAs PIN photodiode (PD) highly integrated with low noise transimpedence amplifier(TIA) to convert a long wavelength input optical signal into a differential (or single) output. It is a highly reliablemodule with excellent performance.
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Isolation Transformer
GLB100KVA/400V
Wuhan Sangao Electrical Test Installations Limit Co.
This device is designed for reducing the interference from all power line and ensured the PD background less than 1pC when performing PD test.The capacity of Isolating transformer is comply with voltage regulator.
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Electric Vehicle AC Charging Compatibility ATS
8000
It is a customized system for Electric Vehicle AC Charging Compatibility testing.Hardware : Integrated by AC Source/Power Meter/DC Source/Function Generator/Scope/ EVSE CP & PD Simulator…。Software : Fully complies with SAE-J1772, CNS15511 test requirements
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Multi-Channel PD System Locator
PDiagnostic Series
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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Rapid PSE And Chained Data Test Of 4-Pair And 2-Pair PSE's
PSL-3424 Quick Test for 802.at and 802.3bt PSE's
*Accessible from PSA Interactive or PowerShell PSA*Scans 2 to 8 PSE ports per test cycle*Automatically determines and adapts to PSE maximum assigned class*Tests PSE’s that grant full power via PD Classification or through PoE LLDP*Validates PoE Detection Acceptance and Rejection Range*Measures PSE Port Voltage at both minimum (DC MPS) and maximum (Pclass) load conditions*Reports PSE type (AT vs BT), maximum assigned class capability, and Pclass power capacity*Assesses Disconnect Power Removal response*Assesses Overload Power Removal response*Assesses LLDP Power Protocol and Allocations (PSL-3424L)
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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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Gas-Filled Hv Testing Transformer
GTU-300KVA/600KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test, and for testing all GIS switchgears and GIS components such as insulators, insulating tension pole, GIS voltage transformer and so on, the PD test can be performed under the general environment because of the merits of encapsulation, the PD level of our equipment can be lee than 3pC, and it can be added a HV bushing to perform the withstand voltage test at the same time. Small and compact dimensions resulting in minimum space requirements. Light-wight components. Rugged construction to withstand long transportation stresses. Direct flanging to the test object. High safety for tester because of encapsulation of all HV parts. Large range of application in conjunction with HV bushing for withstand voltage test. Built-in HV measuring capacitor and coupling capacitor. Built-in HV disconnecting switch to separate multipath test object connector to ensure the safety of HV testing.
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*Laser Photodiode Sensors
Photodiode sensors have a high degree of linearity over a large range of light power levels: from fractions of a nanowatt to about 2 mW. Above that light level, corresponding to a current of about 1 mA, the sensor saturates and reads erroneously low. Therefore, most Ophir PD sensors have a built-in and removable attenuator allows measurement of up to 3 W without saturation.
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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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Gas-insulated AC Test System
Yangzhou Power Electric Co., Ltd
The test system is used to do AC voltage withstand test and PD measurement for high voltage insulation products, combined electrical equipment, instrument transformers, etc.
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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
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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1200kVA High Voltage Testing Transformer
GTU-1200KVA/600KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test,and for testing all GIS switchgears and GIS components such as insulators,insulating tension pole,GIS voltage transformer and so on,the PD test can be performed under the general environment because of the merits of encapsulation ,the PD level of our equipment can be lee than 3pC,and it can be added a HV bushing to perform the withstand voltage test at the same time.
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Reticle / Mask Particle Detection System
PR-PD2HR
In semiconductor plants, where high performance and demanding functionality are required, the HORIBA PD Series'' high operating rate and long-term dependability have earned it a solid reputation. Inheriting a transfer system that has proven to provide stable, high performance and superior throughput over long operating periods, the PR-PD2HR now offers the most sensitive detection in the series with exclusive signal processing that can detect particles as small as 0.35 m.
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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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Laser Diode Driver
S-101
LD Driver slot module of FOTS system is an efficient module that is user centered, which can drive various kinds of laser diode for the use of optical signal transmission or light source. The module has a built in LD socket, in which LD of 14 pin butterfly type is installed, which makes it possible for the user to change the LD he or she wants to drive when needed. It is leaded to get rid of the inefficiency of expense, at which various types of expensive united source module needed are purchased. By operating monitoring PD and high-performance processor that are installed inside the module, the output power and temperature of LD can be driven accurately and stably. The laser diodes can be modulated internally in square, sinusoidal, and triangular waves and its output power and temperature can also be maintained the level set by the user. In order to realize the various functions, the efficient and multi-functioned control programs with high speed processor, LCD monitor or GUI for remote control are available.
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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 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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Double Pulse Calibrator
LDC-5/D
For LDS-6. Double impulse calibrator. For external calibration of the standard PD measuring circuit according to IEC 60270 (single pulses). PD measurements on long cables and in accordance with standards requiring the verification of the double pulse behavior of the employed PD measuring system. Produces these standardized time parameters according to the IEC 855-3.
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Training and Support
Power Monitoring and Diagnostic Technology Ltd.
Along with after-sales training, PMDT also offers training sessions for our representatives and customers scheduled throughout the year. These trainings will cover the basics of PD Theory, PD Types, Detection Methods, and the entire catalog of PMDT products and solutions, including how to use the products effectively.
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UltraTEV Plus
The UltraTEV Plus is the latest innovation being introduced to the award winning UltraTEV range. This easy to use instrument incorporates additional sensing capabilities and real time advances analytical features enabling you to distinguish between true PD, noise and other interference allowing you to make better decisions while saving time and money and enhance the safety of your staff and your network.
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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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Flexible Magnetic Coupler
FMC
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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Partial Discharge Surveyor
PDS100
The Doble PDS100 Partial Discharge Surveyor is a radio frequency interference (RFI) surveying tool that is designed for use in a live substation.Without the need for outages, the PDS100 can detect partial discharge (PD) in just a few seconds making it an ideal tool for a condition based maintenance program.
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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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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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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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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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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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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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Fuel Hose Assembly Tester - Basic, USAF
9901-10FHT
The basic fuel hose assembly tester is utilized by those users who do not require the complete 9201A test system which includes all test adapters and components required by U.S. Air Force PD 89MMI638. The 9901-10FHT however includes the identical test pump, manifold and controls and with larger valves, ports and fittings for increased fluid flow, is designed for the identical mission of testing fuel hose assemblies. Maximum pressure is 1000 psi allowing better control resolution at lower test pressures.
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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)
