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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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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Partial Discharge
Partial discharge (PD) is a local electrical discharge that occurs in imperfections or inhomogeneities. The partial discharge measurement is a so-called “non destructive test” to determine the quality of insulating materials. On the contrary of pure high-voltage test, th test item is not pre-damaged at low PD levels.
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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.
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Online Partial Discharge Monitor
ASM-E
The ASM-E is a permanent partial discharge monitor for cables, switchgear and other high voltage assets.The ASM-E can be configured with up to 128 PD sensor channels. If excessive discharge is detected, the ASM-E 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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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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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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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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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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TEM Antenna
TEM antenna is a broadband antenna with a flat response which makes TEM 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 TEM the optimal sensor for direct installation on medium voltage Switchgears and motors. It can be virtually applied in any electrical equipment provided that it has apertures or EM transparent surfaces.
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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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Temperature Controller
2500
The Series 2500 Temperature Control provides an impressive array of features in an economical 1/4 DIN package. Features include on-off, time proportioning, proportional, PI, PD, or full PID control, programmable from the front panel, or use Self-Tune PID.
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Satellite Optical Receiver
SSR-15CW
Hangzhou Softel Optic Co., Ltd.
*Designed for satellite optical system*Wide operating frequency range: 47-2150MHz*Excellent linearity and flatness*Using 1-core single-mode fiber, high return loss*Build-in CWDM, using high linear PD*Output connected to 5 IN series satellite multiswitch*Build-in optical AGC function*Red-LED for power indication*Smaller size and easier installation
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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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Partial Discharge Locator
INDIPOINT
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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Live PD Emulation
Flexibly Mimic Class 0 to 4 Powered Device Per PSA/PSL-3000 Test Port. Configure up to 192 Simultaneous IEEE 802.3 PD’s. User-Defined Class 0 - 4 Powered Device Modeling with or without Cable Loss. Emulate 802.3at PoE-LLDP Negotiations and Power Adjustments. Monitor Multi-Port Live Emulation Status. Available to PSA-3000 and PSL-3000 Platforms as optional license feature.
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Robust DIN-rail Fanless Embedded System With Intel® Celeron® Processor N3060/N3160, 2 COM, 4 USB, 2 GbE LAN (1 PoE PD), DIO And RTC
ICO310
The ICO310, a robust din-rail IIoT (Industrial IoT) embedded platform, supports low power Braswell Intel® Celeron® processor N3060 1.6 GHz dual-core or N3160 1.6 GHz quad-core with up to 8GB DDR3L system memory, delivering high performance and low power consumption at competitive price. The outstanding Braswell Intel® Celeron® SoC-based embedded field controller offers complete expandability and full featured I/O, including two Gigabit LAN ports, two RS-232/422/485 ports, two USB 2.0 ports, two USB 3.0 ports, one VGA port, and one DIO interface. Two PCI Express Mini Card slots, one SIM card slot and three internal antennas are available for 3G/GPRS and Wi-Fi connections. Furthermore, the ICO310 features PoE PD function, which can simplify network installation and minimize the total costs of replacement and maintenance. Its storage interfaces include an SATA SDD, as well as mSATA support on the PCI Express Mini Card slot. Additionally, the wide range 12V-24V DC terminal block power input with overvoltage and reverse protection can lower the risk of data loss under human manipulation. The reliable yet robust ICO310 is a perfect solution for industrial IoT applications such as smart energy, smart factory automation, facility monitoring systems and many more.
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Cable Diagnostic Tools
For non-destructive diagnostic testing to determine the quality of a cable’s insulation with minimal risk of failure, HVI recommends tan delta and partial discharge testing for valuable diagnostic data about cable insulation integrity. Both use a VLF source to perform elevated voltage, off-line testing. Tan delta testing measures insulation health, while PD identifies specific problem areas and assesses their severity.
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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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ITSM Synchro
The Impulsive Test Synchronization Module (ITSM) is a device aimed at generating a digital synchronization signal, to use the PDBaseII system for impulsive voltage PD test. The digital synchronization signal generated by the ITSM, is synchronized with the voltage impulse of the impulsive source (voltage generator). The ITSM must be connected between the DIN channel of PDBaseII and the output of the synchronization sensor (e.g. capacitive coupler). The ITSM provides also a low voltage signal reproducing the impulsive voltage source.
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Universal AC-DC Power Supplies
PS-WT24-48-US
The PS-WT24-48-US is a small, convection cooled, 24W power supply for use with WINSYSTEMS’ Power over Ethernet (PoE) boards. The unit can be used as a power source for Power Sourcing Equipment (PSE) devices or auxiliary power input for Power Devices (PD). It is a universal design that accepts 90 to 264VAC input and generates up to 0.5A of current at +48 volts.
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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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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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Advanced Handheld Partial Discharge Detector
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.
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PMA Suite For The PSA/PSL-3000: 802.3at (30W) PSE's
In-Depth System Testing of 802.3at and 802.3bt 2-Pair PSE's Using PSA-3000 or PSL-3000 instruments. Concurrently Analyze Up To 192 PSE Ports. Robust Emulation of Type-1, Type-2, and Type-3 (Class 4) PD's Including PoE LLDP. Assess PSE Power Administration Decisions. Assess PSE Power Management Behaviors. Static and Transient Reserve Capacity Analysis. Per-Port Variation and Uncertainty Analysis. Assess PSE Power Reliability Over Time.Colorful and Graphical Pop-Up Spreadsheet Reporting. Available to PSA-3000 and PSL-3000 as part of the Live PD Emulation license feature.
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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 Conformance Test Suite for 802.3at & 802.3bt
Sifos Technologies offers the ultimate simplicity in testing a PD’s conformance to IEEE 802.3 Standards with Pass/ Fail reporting in the PD Conformance Test Suite available for purchase with the PDA-600 Family of Instruments.
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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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PD Test Systems
1. Number of channels: 2/4 electric signal interfaces & 1 EXT interface 2. Sampling frequency: maximum 200MGa/s 3. Sampling precision: 12bit 4. Range: 0.1mV~20V 5. Range switch: 1mV, 2mV, 5mV, 10mV, 20mV, 50mV, 100mV, 200mV, 500mV, 1V, 2V, 5V 6. Frequency band range: 1Hz-60MHz 7. Range non-linear error: 5% 8. Range of capacitance for test object: 6pF~250µF 9. Power source mode: internal lithium cell / AC 220V 10. Display: 6.5 inches TFT LCD 11. Resolution: 640×480 12. PV: 4GB 13. Hard disk: 32G stiff disk used for storing the test data
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Measurement Of Surface Tenison Using The Pendant Drop Method
SURFTENS PD
Optik Elektronik Gerätetechnik GmbH
SURFTENS PD is an image processing software for measurement of surface tension of liquids by pendant drop method. By help of drop shape analysis the surface tension is calculated, using the form parameters of the pendant drop. SURFTENS PD is used in connection with OEG equipment, but also available as standalone solution for applications of customer.
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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.
