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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Product
Online Partial Discharge Alarm System
PD Annunciator™
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The PD Annunciator™ unique design consists of a three channels acquisition module paired with sensors of your choice, most commonly TEV and Acoustic or HFCT. With many advancements and innovations, the PD Annunciator™ handles partial discharge monitoring on metallic cabinets using our proven and advanced technologies.
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Product
Superior Handheld Partial Discharge Detector
PDStar
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Power Monitoring and Diagnostic Technology Ltd.
PMDT is proud to present one of our latest innovations, the PDStar. It integrates On-Line Partial Discharge (OLPD) testing and Infrared testing for MV and HV equipment, which combines UHF, AE, Ultrasonic, HFCT, TEV, and Infrared testing technologies. It is applicable for online PD testing, as well as abnormal heating and defect detection on all types of substation equipment. PD amplitude, PRPD, PRPS, and infrared spectrums provide critical data for determining the operational condition of electric power equipment. It connects to the PMDTCloud via Wi-Fi/3G/4G to upload test data, download test tasks, and receive diagnostic results in real time. Another uniquely advanced feature of the PDStar is that it integrates with a 100 MSPS (Mega-Samples per Second) HFCT signal processor, which greatly improves the performance for power cable OLPD testing.
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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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Cable Diagnostic Tools
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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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Product
Partial Discharge Expert Diagnostic and Location System
PDExpert
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Power Monitoring and Diagnostic Technology Ltd.
The PDExpert is PMDT's third level of Partial Discharge (PD) Expert Diagnostic and Location System. It is a powerful, portable, multi-channel system of impeccable design used to analyze and pinpoint PD signals coming from a power asset within centimeters while the power system is energized. The system consists of UHF, AE, HFCT and ultrasonic sensors, one advanced UHF/PD signal processing unit, one oscilloscope, filters and other accessories.The system employs ultra-high speed data acquisition and advanced digital signal processing technologies, compares the UHF, AE and HFCT signals of different frequency ranges to determine if it is PD or noise, and locates the source in power assets accurately by utilizing Acoustic-Electromagnetic Combination Location Technique, time Difference of Signals' Arrivals (TDOA), and 3D Positioning Technology.
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Product
Plastic Fabrications Testing Equipment
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PD and PHD Pinhole/Holiday Detectors have an alarm circuit to alert the operator when a fault has been located and the required test voltage can be set on the unit's meter. Spark Testers provide an inexpensive means of testing but have no output voltage meter or audible alarm. However, they can test joints even if the backing is not connected.
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High Frequency Current Transformer
HFCT Ø 140mm
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Techimp Clamp High Frequency Current Transformer model 140 is an inductive sensor for partial discharge measurements. It is suitable for online /off line PD tests on : large diameter cables ; grounding rod bar ; etc. A TNC termination is available to connect the Clamp HFCT 140 to the TechImp PD analyzer : PDCheck , PDBase etc. The arrow indicates the requested input current (Iin) direction to get coherent output voltage (Vout) polarity respect to ground. When the sensor is installed with the arrow directed to ground, the detected voltage signal (Vout) has the same phase of the input current (Iin).
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Product
Partial Discharge Calibrator
TPK-H
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The high voltage-resistant Partial Discharge calibrator is used to determine the correction factor in the PD test circui.
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Product
Online Partial Discharge Monitor
ASM-E
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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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Product
Partial Discharge Tester
19501-K/19500
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Chroma 19501-K partial discharge tester combines hipot test and PD (partial discharge) detector functions in one instrument. The device is capable of a maximum 10kV AC output with leakage current measurement range of 0.01uA and a minimum partial discharge detection of 1pC. The tester is specifically developed to test high voltage semiconductor components and high insulation materials.
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Product
Laser Diode Drivers
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Arroyo Instruments offers a broad range of laser drivers to meet your exact test needs. From 100 milliamps to 100 Amps, all of Arroyo Instruments' LaserSource benchtop laser drivers include unique features not found on competing products such as optically isolated photodiode and modulation inputs, programmable PD bias, and both RS232 and USB computer interfaces. The LaserSource also has laser diode protection circuits such as interlock, ESD protection, and hardware limits for current and voltage.
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Product
PoE Testing Chassis & PD Emulation
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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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Laser Diode Driver
S-101
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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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Real-Time Online Monitoring to Detect and Analyze Potential Partial Discharge (PD) Signals and Insulation Faults using UHF, AE, and HFCT
PDMonitor
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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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Product
Universal AC-DC Power Supplies
PS-WT24-48-US
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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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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
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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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Product
Capacitive Divider
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It can be chosen as PD sensor for Techimp PDCheck, PDScope or PDBaseII systems. It is suitable for on line or off line PD tests onrotating machines, for both spot measurements and monitoring applications. A BNC termination is available to connect the coupler through a coaxial cable.
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Product
UltraTEV Detector
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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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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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Cable Partial Discharge (PD) Spot Testing And Locating
PrecisePD
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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.
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Product
TEM Antenna
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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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Product
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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Product
Bi-Directional-Coaxial LD/PD Module
BiDi-F1000 (FTTx)
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Hangzhou Huatai Optic Tech. Co., Ltd.
Laser optical: DFB or FP. 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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Product
PoE LLDP Emulation (PD) & Analysis for 802.3at & 802.3bt
802.3at and 802.3bt PD Emulation and Protocol Analysis
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Integrated PoE LLDP and Load Emulation in a Single Instrument. IEEE 802.3at and 802.3bt LLDP Compliance Analysis. Independent, Per-Port 802.3at and 802.3bt LLDP Emulations. Flexible Single and Dual Signature PD LLDP Emulations. One-Click LLDP Protocol Capture and Analysis. Pop-Up Excel Spreadsheet Reports Assess Protocol Content and Timing. Enables One-Click Emulated Power-Ups and Standard Waveforms with LLDP Power Granting PSE's. Enables 2-Pair and 4-Pair PSE Conformance Test Suties with LLDP Capable PSE's. Enables 2-Pair Multi-Port Suite with LLDP Capable PSE's. Available for PSA-3000 and PSL-3000 Platforms.
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Universal Partial Discharge Measurement and Analysis System
MPD 800
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Our MPD 800 universal partial discharge (PD) measurement and analysis system represents the next generation of our widely-used and innovative MPD PD testing technology. Enhanced and newly-added hardware and software features ensure highly-sensitive multi-channel PD measurements for reliable, industry-standard PD testing on a variety of electrical equipment and components.
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Positive Displacement (PD) Meters
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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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Product
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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Product
Gas-insulated AC Test System
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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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Product
Field Testing Services
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Power Monitoring and Diagnostic Technology Ltd.
PMDT offers three levels of testing services both domestically in the US and globally. With the best quality products, complete PD solutions, rich on-site testing experience, experienced partial discharge experts and field engineers, PMDT also provides PDExpert Services -- professional on-site partial discharge detection and location services to help the customers find the potential risks, evaluate the operating status of the electrical assets, and deliver complete and final problem solutions.
