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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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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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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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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High Frequency Current Transformer
HFCT Ø 140mm
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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Substation Series Testers
GTPD-92
Partial discharge（PD） is a pulsed discharge that produces a series of physical phenomena and chemical changes such as light, sound, electrical and mechanical vibrations in and around electrical equipment.
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Laser Diode Drivers
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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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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100Gb/s Coherent Receiver
The integrated 100-Gb/s DP-QPSK receiver incorporates two 90° optical hybrids with four pairs of balanced photodetector (PD) and four linear TIAs into a single butterfly package. Unlike other technologies in which the polarization beam splitter (PBS) and/or the power splitter (BS) are not included, Optoplex’s receiver includes both of them with the optical hybrids, PDs and the TIAs to offer a fully integrated solution which will benefit users in terms of completely removing fiber routing and the skew management. The integrated receivers work at the symbol rate up to 32GBaud/s.
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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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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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USB PD Power Supply/Module ATS
8000 Series
The USB 3.1 specifications has three major features which are 10Gbit/s transmission speed, USB PD (Power Delivery) with support for 100 watt charging power, and the standard Type-C connector/cable that can be inserted with either side. It is expected to meet all kinds of data / video transfer applications. The advent of USB PD may consolidate the specifications of various power converters and the laptop, monitor, printer or Hub that implements USB PD is no longer a simple power-consuming device but able to supply power to other devices. The USB PD DRP (Dual role port) function allows the built-in USB PD module to deliver a maximum of 100 watts of power through the Type-C interface. To make sure the USB PD Type-C output power does not supply invalid voltage or poor power output characteristics with excessive noise that can damage the power consuming device and cause unsuccessful startup, each USB PD power supply or module has to be fully tested during production to ensure the product features meet the design specifications. This ensures high-quality products are provided to the market to gain acceptance.
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Partial Discharge Simulation Devices
Hangzhou Xihu Electronic Institute
Simulation device of cable PD faults, simulation device of switchgear PD faults, simulation device of GIS PD faults, simulation device of transformer PD faults.
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Plastic Fabrications Testing Equipment
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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PoE Service Analyzer
PSA-3002-SA
Comprehensive Assessment of 2-Pair (802.3at) PoE Service at Any PD Outlet. The only PoE Service Tester built on Sifos PowerSync® Analyzer technology.• Analysis and Troubleshooting for All Standard 2-Pair (802.3at) PoE Installations Including Type-2, LLDP Power • Provisioning• Fully Verify Interoperability of PoE Service to the PD• Verify PoE Service Safety Features• Assess Continuous Power Delivery at the PD by PD Class• Assess Transient Power Delivery at the PD• Troubleshoot Intermittent PoE Service Problems• Colorful Microsoft Excel Reporting• Portable Instrument with Rugged Carrying Case
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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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Fibre Linked EHV And Distributed Assets PD Monitoring System
EHV-PDM
The EHV-PDM is a PD monitoring system designed for application on critical EHV and distributed assets, where the monitoring point could be many hundreds of metres or tens of kilometres apart. Fibre linked monitoring points transmit PD data over long distances to the main monitoring unit, which then processes the data and displays the results on a secure customer web front end.
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Partial Discharge Tester
19501-K/19500
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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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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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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Powered Device Analyzer for 802.3at
PDA-602B
Emulate all Type-1 and Type-2 PSE’s, powering 2-pairs up to 41W at all PD input voltages. Optionally supports 802.3at PD Conformance Test Suite and LLDP emulations.
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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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Partial Discharge Meter
APD-LT
The APD-LT equipment is a partial discharge meter in cable accessories (heads or insulators) to improve safety and maintenance. The PD level is presented numerically in the wireless unit.
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Software for the Development and Implementation of Test Programs using IEEE 1641
newWaveX Suite
We Have a unique suite of tools to support the development and implementation of test programs created using IEEE 1641 to define the signals and tests. These include the entry-level version of newWaveX (newWaveX–Lite), the development versions of newWaveX (newWaveX–SD and newWaveX–PD) and the complete integrated development environment for IEEE 1641, SigBase. These tools provide everything necessary to work with IEEE 1641, from creating simple signals through to implementing and managing a complete 1641 test environment. All of our 1641 tools are commercial off-the-shelf (COTS) items that may be used stand-alone or integrated into a complete test development environment. newWaveX products may be integrated with third party test executives and associated software.newWaveX is an intuitive user-friendly suite of products that does not require specialist training for users to acquire the skills to develop 1641 programs. Completing the IEEE 1641 User/Developer training course (which uses newWaveX Signal Development for the hands-on element), together with the associated 1 day newWaveX–SD User/Developer training course, provides complete information for the newWaveX user. Further support is provided for users of newWaveX packages under the maintenance agreements for those products.
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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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Partial Discharge Detecting Systems
Hangzhou Xihu Electronic Institute
Cable PD detecting and positioning system, transformer PD detecting and positioning system, switchgear PD detecting and positioning system, GIS PD detecting and positioning systems.
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PocketDetect LRM
PD-01LM
Hachmann Innovative Elektronik
With a PocketDetect LRM you have a highly specialized, miniaturized and easy-going voltage detector at your fingertips. A thorough self-test ensures reliable function. A permanently enabled interface-tester warns against defect interfaces or residual voltages, while the low-power long-term display mode secures live working. The PocketDetect can be carried along due to its diminutive dimensions and lightweight (e.g. in the optional available belt case).
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A PoE-PD I/O Board
AX93274
*PoE-PD I/O board complies with IEEE802.3at standard via an internal cable to power on SBC*100 x 32 mm*1 x LAN cable, 1 x power cable, 1 x thermal module*Compliant products: PICO831, PICO121, PICO841, PICO843
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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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Partial discharge measurement with remote wireless reading
PD-LT
The PD-LT allows online partial discharge detection on cable accessories such as cable head for safety and maintenance purposes.The PD-LT indicates the intensity of the partial discharges, converting the electrical charge units (pC) into decibels (dB). Thus the reading is kept as a simple intensity level indication, proportional to the probability of a fault's presence in the tested medium voltage accessory.The remote display gives a dB value of the probe's measurement. The dB value will vary along with the discharges indicators on the PD-LT probe. The measurement range is from 0 to 65dB and the display will show ''OL'' if the reading is over 65dB.
