Impulse
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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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Ultrafast Fiber Optic Photodetectors
DXM Series
The DXM series of Ultrafast Detectors are fiber-coupled photodetectors with wide wavelength ranges, as shown in the plot to the right, that are designed to be used for a variety applications. Each provides a high-fidelity electrical output pulse in response to an optical input pulse, and their clean impulse responses have full width half maxima (FWHM) down to 15 ps.
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IMPULSE SURGE WINDING TESTER
VE2882A-5U
Impulse Tester can detect turn & layer short ,the differences in the number of turns and the material of the core. If high impulse voltage is applied, the poor insulation will appear as a corona or layer discharge.
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Impulse Winding Tester
TH2883S4-5
Changzhou Tonghui Electronic Co., Ltd.
TH2883 series products are newly developed impulse winding testers by Tonghui. This product line makes Tonghui as the first provider of impulse winding tester from low voltage of 30V to high voltage of 10kV, single channel to multichannel (Max.:8 channels) in this industry. The instrument adopts popular 32 bit CPU and high density SMD technology, 65k color 7-inch TFT wide display screen, bringing ease for your eyes and convenience to your operation. The impulse voltage of100V~5000V, maximum 8 channel sweep test, maximum 20 test procedures, sampling rate of 200Msps, memory depth of 6k bytes makes your test accurately.The usage of standard sample average, application of demagnetized impulse, high bandwidth analog acquisition circuit, technology of high-fidelity corona extraction as well as the opening of non-destructive test reflect the design philosophy “customer-oriented, share the future technology with you” of Tonghui.
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Impulse Current Generator
Weshine Electric Manufacturing Co., Ltd
Impulse current generator is mainly used to test the ability of electrical equipment to withstand strong impulse current, widely used in lightning arresters and electrical and electronic equipment in operation conditions of oscillation wave immunity test, can also be used for other research tests.
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Current Probes
Teledyne LeCroy current probes do not require the breaking of a circuit or the insertion of a shunt to make accurate and reliable current measurements. Based on a combination of Hall effect and transformer technology, Teledyne LeCroy current probes are ideal for making accurate AC, DC, and impulse current measurements.
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Guided Wave Radar Level Transmitter
2291
The 2291 Guided Wave Radar level transmitter is designed for continuous level measuring of conductive or non-conductive liquids, pulps and solids. The 2291 level gauge operates based on the well-known TDR (Time Domain Reflectometry) principle. Micropulses are sent along a probe guide at the speed of light. As soon as the impulse reaches the surface of the medium, it is reflected back to the electronic module. Level distance is directly proportional to the flight time of the impulse.
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SIM Filter
The CFL SIMF, Cable Fault Secondary Impulse Filter from SCOPE is the ultimate solution for locating underground cable faults in minimum time. It uses advanced technology for fault distance measurement which helps even an unskilled operator to locate the fault accurately.
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Glass Reinforced Epoxy (GRE) Connectors
Waterproof, submersible electrical connectors rated up to 20,000 psi. Specifically designed for harsh environments, the GRE connectors from Teledyne Impulse are rugged and reliable connections for ROVs, AUVs, underwater instrumentation, and others areas of high pressure or extreme conditions.
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Pre- Locator
CFL PL4
CFL PL4 Power Cable Fault Locator is a portable, easy to use cable fault pre-location instrument. It uses the Time Domain Reflection (TDR), Secondary Impulse Method / Multiple Impulse method (MIM) and Impulse Current Method (ICM) on low, medium and high voltage cables. Its measuring ranges enable pre-location on cable lengths from 500 m to 64km.
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AC & DC Combined Test Set With / Without Impulse
This testing equipment is used in electrical and power industry.
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AUTOMATIC WINDING TEST SYSTEM
VE9036SU
6 CHANNEL Microprocessor based Automatic Test System for Automobile Coils, Magnetos, Alternator, Motor Winding. Can Test : Impulse Winding Tester (IW), AC/DC HiPot, Insulation Resistance (IR), Inductance (L), DC Resistance (DCR)
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Wound Component EST Analyzer
19036
Chroma Systems Solutions, Inc.
The industry’s first Wound Component Electrical Safety Test (EST) Analyzer that combines impulse winding, AC/DC hipot, insulation resistance and DC resistance test measurement functions. Chroma’s 19036 Wound Component EST Analyzer has 5kVac/ 6kVdc high voltage output, 5kV insulation resistance, 6kV layer short impulse voltage and 4-wire DC resistance measurement with a maximum output of up to 40 channels. Capable of outputting and measuring AC100mA/DC 20mA, Chroma’s 19036 is suitable for testing to high power motor standards such as UL 1004-1.
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Pulse - Generator
PG 01-2000
The test generator PG 01-2000 is suitable for insulation test and testing of the impulse withstand voltage of electrical and electronic electricity meters. The generator produce a standard pulse voltage waveform with 0,1 / 2000 μs.
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Digital Recorder
HiRES
HIGHVOLT Prüftechnik Dresden GmbH
The digital recorders HiRES are used to measure, store, and evaluate signals from up to 64 sources synchronously. Depending on the sensors used voltages, currents, temperatures, mechanical movements and various other signals can be measured. This measurement system features the ability to capture fast transient processes such as those occurring in impulse current tests on electrical devices or during switchgear testing. The system is also capable of measuring semistationary and periodic events such as DC voltage and AC voltage as well as superimposed semistationary, periodic and transient processes.
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Impulse Hammers/Impedance Heads
Impulse hammer excite from the smallest of structures to various civil engineering structures. The Dytran model 5800SL is an ultra miniature IEPE impulse hammer used to excite structures or machinery with a definable impulse force in modal and structural analysis of very light structures and impulse testing of very low mass, high resonant frequency components.
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Room Acoustics Analysis on iOS
RoomScope
RoomScope turns your iPad, iPhone, or iPod touch into a room acoustics measurement and analysis tool. With RoomScope, you can measure a room impulse response and then calculate reverberation time, early decay time, clarity, and definition, as defined in the ISO 3382 standard. RoomScope also allows you to adjust the Schroeder decay curve integration limits with the touch of your finger and plot the calculated room parameters versus whole or 1/3-octave band center frequency.
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Qualification and Quality Control Tests
Techsquare
New IEC standards, IEC 60034-18-41 and IEC 60034-18-42, have been issued to define the procedures for testing partial discharge inception voltage and the long-term performance (endurance) of Type I and Type II insulation systems used in rotating machines fed from voltage converters. Voltage impulse generators are required at least to test turn insulation, but they would be recommended for any testing under power electronics supply because of their capability to simulate the real electrical stress conditions. More generally, any type of electrical insulation system when subject to impulsive voltage waveform during life should be carefully evaluated in terms of partial discharge and endurance behaviour. This is why voltage impulse generators able to provide impulses with controlled amplitude and frequency are needed to face this new testing challenge.
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AC Insulation Testing
Weshine Electric Manufacturing Co., Ltd
High-voltage Dividers (High Potential Divider) are used to measure voltages and decouple partial discharges in high-voltage test systems. Depending on the specific type, they are used to measure alternating voltage (AC), direct voltage (DC), lightning impulse voltage (LI), and switching impulse voltage (SI) systems. High-voltage dividers by HIGHVOLT comply with the relevant IEC standards. The systems are available for both indoor and outdoor use.
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Magnetizing Power Supply
This is a magnetizing power supply which can be used even in areas (countries) with an unstable electricity supply.The accuracy of the repeating magnetizing voltage enhances our reputation for top-class quality in the industry.We confirm the peak value, the time of electrification, and the electrical current area by using an impulse meter (a highly accurate magnetizing ammeter) before we ship out the products.
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Impulse Voltage Generator
Hilo-Test manufactures Surge generators for surge voltage and safety tests as well as for testing the insulation withstand voltage, the waveform in accordance with IEC 60060. Especially for EMC tests on photovoltaic systems and surge voltage tests, for example, to relay, capacitors, coils.
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Pulse Signal Amplifier
VCH-606
The pulse signal amplifier VCH-606 is designed to multiply a single pulse or a sequence of pulses to 16 independent outputs. The impulse signal amplifier includes 16 independent channels with unity gain each for connecting consumers of impulse signals with an input impedance of 50 Ohm.
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Impulse Current Test Systems
Fivestar HV Testing Equipment Co., Ltd.
Impulse current test systems are mainly used for testing transmission and distribution systems against the effects of direct or indirect lightning strokes or against electromagnetic interference effects. Primary application of impulse current test systems is the testing of surge arresters, nowadays mainly of the metal-oxide type (MOA) and surge protection devices (SPD). Now they are also widely used to test vehicles, aircrafts, and military applications.
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Compact EMC Test System
Multi-CE5
The Multi-CE5 includes an Electrical Fast Transient Generator (EFTG), a Combination Wave Generator (CWG) and a Coupling-/Decoupling Network (CDN) for single-phase power supply lines. The software program CE-REMOTE allows full remote control of the test generator via Ethernet light guide as well as recording, evaluation and documentation of test results, according to IEC 17025. To record the wave shape of impulses, it is equipped with an Impulse Recording Function (IRF).
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Voltage Pulse Generator
SKS-IV10J
Shanghai Sanki Electronic Industries Co., Ltd.
The voltage pulse generator SKS-IV10J is completely designed in accordance with the requirements of the impulse voltage chapter in OIML R 46-1/-2; it meets the requirements of the new IEC60255-5 and GB14711 standards; the leakage current detection alarm function is added, and the leakage current limit can be Adjustment; using linearized high-voltage power supply, low noise, high stability, high voltage accuracy and long service life.
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PVdF Transducers
PVdF transducers have a wide bandwidth, short impulse response and can be designed to your specific requirement.
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Solutions for Nondestructive Characterization of Elastic
Sonelastic
Sonelastic® is a line of solutions for nondestructive characterization of elastic modulus and damping of materials by the natural frequencies obtained by impulse excitation technique.
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Flammability Test System
COMP0804CAP
Active flammability test system according to IEC 60384-14 Ed4. For testing X & Ycapacitors up to 1uF. The test system includes control of the nominal AC supply via an integrated variac up to 1800V. Impulse amplitudes are programmable up to 8kV which covers all requirements. X1 capacitors are stressed up to 4kV, X2 and Y4 capacitors up to 2.5kV and Y2 capacitors up to 5kV.
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Capacitor Tester
MIG1212CAP
MIG1212CAP is specially designed for high voltage test on X / Y capacitors with impulse voltage approximate 1,2/50 µs up to 12 kV in accordance with IEC 60384-14 Ed.4. The MIG1212CAP comprises two circuits with impulse capacitance 20 µF and 0,25 µF. Both circuits generate a voltage wave shape of approximate1,2/50 µs and are combined in an 8 unit high 19" rack. IEC 60384-14 and EN 132400 define the generator.
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Circuit Breaker Analysis Systems
When a fault such as a short circuit or current overload is detected by a protective relay, a trip impulse is sent to the circuit breaker. The circuit breaker must function as specified and interrupt the current as soon as possible or severe damage may occur. The damage caused by a malfunctioning circuit breaker can often be catastrophic, resulting in significant damage to the electrical system.
