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
UHF PD Detector
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Handheld online PD substation surveying system. The UHF PD Detector is the ideal tool for quick, non-invasive surveys in MV and HV substations and should be part of the toolkit for all maintenance and service teams. Due to its high measurement bandwidth, the UHF method provides accurate local online partial discharge (PD) measurements on HV components such as cable end-terminations, surge arrestors, voltage transformers and isolators.
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Product
PD Test Systems
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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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PD Monitoring systems
TECHIMP PD Hub™
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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
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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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Product
Live PD Emulation
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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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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
USB PD Power Supply/Module ATS
8000 Series
Power Supply
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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PoE LLDP Emulation (PD) & Analysis for 802.3at & 802.3bt
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The optional LLDP Emulation feature allows a PSA-3000, PSL-3424L, or PSL-3000 test port to behave just like an 802.3at or 802.3bt PD that uses LLDP to convey its power demands. 802.3 PoE LLDP is a special variant of LLDP protocol that involves handshakes and protocol timing between a PSE and a PD.
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Product
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
PD Pipe & Cable Locator
PD / PD-H
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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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Product
Portable PD Diagnostics System
PD-TaD 60
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The PD TaD 60 portable PD Diagnostics system is used in combination with a BAUR VLF generator frida for carrying out partial discharge measurement and location.* Comprehensive 360° cable analysis – with parallel partial discharge and dissipation factor measurement* Time-optimised and safe cable condition evaluation* The lightest and most compact PD measuring device up to 60 kVpeak* Developed for portable use on site
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PD Conformance Test Suite for 802.3at & 802.3bt
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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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Product
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
Rapid PSE And Chained Data Test Of 4-Pair And 2-Pair PSE's
Chained Data Test Support for 802.3at and 802.3bt PSE's
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Intuitive graphical user interface. Configures up to 24 2-Pair or 4-Pair ports for "snaked data path" testing. Verifies all PSE connections in the defined data path. Sequences user-defined PD emulations and PSE powering.Verifies powering to user-defined loading on all selected ports. Configures looped data paths across the selected ports. Support of 802.3at / 802.3bt LLDP power negotiations (PSL-3424L).
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Product
PMA Suite For The PSA/PSL-3000: 802.3at (30W) PSE's
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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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Product
VLF Testing and Diagnostics System
PHG 80 TD/PD
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Cable testing and diagnostics with the BAUR PHG 80 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 voltage* Compact, 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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Smart Sensorgrid NG
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Smart Sensorgrid belongs to the smart sensor family devised for on-line monitoring of diagnostic quantities in electrical assets. It provides traffic-light alerts to SCADA systems / asset and maintenance service. Smart Sensorgrid is a state-of-art PD analyzer, exploiting the TECHIMP T-F Map technology (patented). Such feature allows noise rejection and automatic alarm warning based on amplitude and repetition rate trend relevant to statistical parameters. The PD sensor, a HFCT, is integrated in the smart sensor body.
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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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UltraTEV Plus
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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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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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Temperature Controller
2500
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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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Diodes
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Development target specification*PD=5W class*Capability for load dump surge：ISO7637-2, JASO A-1*Reliability standard：AEC-Q101*Package size：[W×L×H] 12.0×9.6×4.3(mm)
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Power Management Analyzer Test Suites for 802.3at, 802.3bt, & Hybrid PSEs
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While most PSE ports are part of multi-port PSE, behaviors of such systems of PSE ports are beyond the scope of IEEE 802.3 specifications. Sifos offers two fully automated analyzer suites that uniquely characterize PSE port administration and power management behaviors including PD admittance policies, PSE capacity management, LLDP policies, and powering stability. Each of these suites are built upon Live PD Emulation, a feature that enables each test port to independently and continuously emulate user-described PD’s.
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Product
PoE Service Analyzer
PSA-3002-SA
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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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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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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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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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Shielded Rooms
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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 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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Pocket-Sized Analyzer for Capturing & Decoding USB 2.0 Devices
Mercury T2C / T2P
Analyzer
The pocket-sized Mercury T2C & T2P capture and decode the widest range of USB 2.0 device classes plus Type-C link states and Power Delivery 3.0 messages. Both the Mercury T2C and T2P utilize the industry leading CATC Trace analysis software for verifying and debugging USB and PD protocol issues. Now there are two base models to choose from; the original Mercury T2C and the new Mercury T2P, which adds the Power Tracker graphical view of VBUS and CC voltages.
