- Pickering Interfaces Inc.
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PXI Dual 12:1 High Voltage Power MUX
40-331-002
The Pickering Interfaces 40-331/332 High Voltage Power Multiplexer and Matrix Modules are suitable for applications requiring high voltage power relay switching with high density. They feature current handling up to 5A, 1000VDC/1000VDC peak cold switching and 110VDC/250VAC hot switching. The 40-331 is available as a single 24:1, dual 12:1, quad 6:1, hex 4:1, octal 3:1 or twelve 2:1 multiplexer, and the 40-332 is available in 12x2 or 6x4 matrix configurations. Connections are made via a front panel mounted 37 pin high voltage D-Type connector.
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High Voltage Oil Test Set
Supreme Instrument Laboratories
Supreme High voltage Oil Testing Apparatus is designed for testing of dielectric strength of transformer Oil or any other insulating liquids. It constitutes a complete equipment and apart of an A.C. supply of 230 / 240 Volts, no other supplementary facilities are required for its operation.
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Plug-in Test Systems
FAME is the innovative, modular plug-in test system for measuring and testing tasks in protection technology for medium-voltage and high-voltage switchgear. The plug-in test system combines complex switching operations for testing the function of current transformers and voltage transducers, as well as tripping and signal contacts.
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AC Electronic Load
The electronic AC loads cover a wide variety of different voltage, current and power ranges. All the AC loads are programmed with 11 different sine, square and DC waves. With 5 crest factor variations of each, a total of 55 waveforms are available. An external input is also provided to enable the user to amplify signals from a waveform generator.AC Loads allow real world operating conditions to be simulated. Typical applications include circuit breaker, transformer & UPS output testing along with general laboratory and research work.
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Spiral Antenna UHF Trafo
UHF Spiral antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in the monitored asset. It is a broadband antenna with a flat response which makes Spiral antenna 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 Spiral antenna the optimal sensor for...show more -
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VOLTAGE TRANSFORMERS
Designing & manufacturing a range of high quality, voltage transformers in three different frame sizes for both measuring and protection duties. Transformers which are designed to comply with the requirements of IEC 61869-3 or other international standards as required can be supplied to satisfy most Low Voltage applications.
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Single-functional testers
3110
The MI 3110 EurotestIM is a perfect tool for testing of permanent integrated or portable Low Voltage Electrical Installa-tions supplied by Generator or Transformer and protected by an IT earthing system. Designed for simple but efficient safety testing of Integrated IT Earthing System powered with LV Generator or Transformer! With a single, pre-programmed AUTO SEQUENCE® with sub-tests and adjustable limits it is possible to perform all the necessary verifications of safety limits of a specific LV IT installation.
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3-Phase Ratiometer
PWR1-3B
The RATIOMETER PWR1-3B is constructed to measure the transformation ratio, phase error and magnetizing current of power- and distribution- transformers for all three-phases simultaneously. Voltage and current transformers are single phase, power transformers normally three-phase. Due to the bad quality on industrial lines (phase jitter and shifting, voltage differences between the three phases) all measurements normally are done single phase, even on three phase ratiometers.
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High Voltage Transformers
We, NMC, are engaged in manufacturing AC/DC High Voltage Transformers ranging from 5kv upto 150Kv having current capacity from 10mA to 200mA AC/DC in Air cooled or Oil Cooled type as per the customer requirement.
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Transformer Testing
The ART-3D series of Automatic Ratio Testers are precision instruments, designed to measure the turn ratios, phase displacements, excitation currents of single phase and three phase power, distribution and instrument transformers in conformity to the IEEE C57.12.90 & IEC 60076. Now featuring an enhanced test lead design, the ART-3D is the perfect instrument for real-life field usage. ART-3D series also has Anti Induction circuit which makes it suitable for system voltages upto 765KV.
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AC Resonant Test System
Yangzhou Power Electric Co., Ltd
Testing of certain apparatus requires much high voltage or current that a straight AC test system is not sufficient. Thus resonant test reactor with a variable core is needed. The main advantage of such test systems is lower input power and larger output power. The resonant test system is designed to compensate capacitance in the testing circuit precisely by tuning inductance of the test system. AC resonant test system is used for factory testing of middle, high and ultra-high voltage cables, capacitors, generators, motors, power transformers and gas-insulated switchgears.
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Transformer Turns Ratio Testers
Transformer turns ratio testers from TRT series are DV Power instruments mainly designed for the measurement of power transformer turns ratio. Also, they measure transformer excitation current and phase shift. Special tests, such as automatic vector group detection and magnetic balance, can be performed on three-phase transformers and three-phase autotransformers.All models, except TRT03 series, have a built-in true three-phase power source, which is necessary for testing turns ratio of transfor...show more -
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Gas Filled Hv Test Transformer
YDQW-50KVA/250KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test, and for testing all GIS switchgears and GIS components such as insulators, insulating tension pole, GIS voltage transformer and so on, the PD test can be performed under the general environment because of the merits of encapsulation, the PD level of our equipment can be lee than 3pC, and it can be added a HV bushing to perform the withstand voltage test at the same time.Small and compact dimensi...show more -
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Isolated Gate Drivers
Analog Devices’ isolated gate driver portfolio offers designers performance and reliability advantages over designs utilizing optocouplers or pulse transformers. Utilizing ADI’s proven iCoupler® technology, the isolated gate driver family offers the advantage of a maximum propagation delay of 50 ns, less than 5 ns channel-to-channel matching, a 50-year lifetime for 400 V rms working voltage and galvanic isolation in a single package.
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Gas-Filled Hv Testing Transformer
GTU-300KVA/600KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test, and for testing all GIS switchgears and GIS components such as insulators, insulating tension pole, GIS voltage transformer and so on, the PD test can be performed under the general environment because of the merits of encapsulation, the PD level of our equipment can be lee than 3pC, and it can be added a HV bushing to perform the withstand voltage test at the same time. Small and compact dimens...show more -
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Digital Tap Position Indicator With Voltage &Counter Display
NMC''s latest offering digital tap position indicator with voltage and counter display, type: TX-204, is a fully micro controller based instrument used to indicate the tap position of the power transformer also indicating the voltage and counter indications simultaneously at a same time.
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Digital Fault Recording
SHERLOG
Fault recorder systems with a power quality analyser for comprehensively monitoring and assessing low, medium and high voltage networks in power plants and transformer substations. The measuring devices of the SHERLOG range make very high-resolution recordings of all the disturbances which occur in power supply systems. The behaviour of protection and switchgear devices during these system disturbances is recorded at the same time.
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Analog Power Supply
Type NPS-2412
National RF's Type NPS-2412 analog power supply was designed to be used in communication equipment where radiated switching inverter noise from conventional “switching type” supplies is not acceptable. The power supply consists of a standard rectified transformer output driving a pair of voltage regulators and filtering networks. The 2412 offers an adjustable voltage output between 2 and 24 volts as well as a fixed voltage output of 12 volts. A maximum of 20 Watts of DC power can be supplied fro...show more -
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Portable Power Quality Analyzer
PDA 1252
The PDA 1252 is a portable power quality analyzer designed to monitor, isolate and troubleshoot power system disturbances. Using our advanced analysis software, the Communicator EXT application, view real time data presented in a simple and powerful format. Maximize the Communicator EXT application's power with the optional AiReports to generate disturbance solutions and advanced power reports. The unit is ideal for load surveys, program, monitoring transformer banks and indoor/outdoor electrica...show more -
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Variable Frequency Series Resonance Test Device
WABP
Wuhan Sangao Electrical Test Installations Limit Co.
The device mainly AC voltage withstand test design for 10kV, 35kV, 110kV, 220kV, substation and line of all electric main equipment.Reactor with multiple separate design, Not only can meet the requirements of equipment testing conditions high voltage, small current, and can meet the requirements of low voltage AC voltage withstand test, has a wider scope of application.The device is mainly composed of variable frequency control power supply, transformer, reactor, capacitor divider.
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Transformer Test Panel/ Setup
This is a common test panel for distribution/ power transformers of different specifications. The user can perform most of the factory tests, as per the relevant IS standard for the transformers. The panel consists of power analyser, meters for high voltage test, meters for induced voltage test etc, control for all the tests, protection and interlock circuits so that a single panel can be used to conduct a number of tests using only one dimmerstat and the associated devices
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Injection Transformer
J2101A
The injection transformer is presently the prevalent method for connecting the network analyzer to the circuit being tested, and is primarily used for control loop stability measurements. The goal of the transformer is to inject a signal into the control loop being measured, without impacting the performance of the loop. In order to accomplish this to a reasonable degree, The transformer is isolated and therefore is capable of floating on a high voltage, such as a Power Factor Corrector (PFC), which is often close to 400VDC. Measuring voltages that exceed the voltage rating of the FRA inputs require attenuation probes.
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SF6 Filled High Precision Standard Capacitors
YL Series
Shanghai Jiuzhi Electric Co., Ltd.
The SF6 insulated standard capacitor is used as Capacitance standard in measuring bridge Circuits to measure the dielectric dissipation Factor tanδ of all types including cables, capacitors, bushings, instrument transformers and power transformers. Further-more, It can be used as high-voltage capacitor for voltage divider circuits of high-voltage transformer test.
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AC Current Transformers
CR Magnetics supplies an extensive line of toroidal current transformers for any need. Our offerings include measuring from 10,000 amps to a few milliamps. This includes ANSI, Commercial, Ground Fault, High Frequency, Wound Primary, DC Immune and Nano Alloy current transformers. Various outputs include 5 amp secondary, high turns ratio voltage outputs for both wire leads and pcb configurations. Our products are UL Recognized for both US and Canada.
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Filament Transformers
Osborne designs and produces high impedance and unregulated Filament Transformers. An unregulated filament transformer supplies a specified voltage and current to the filament of an electron vacuum tube. High impedance filament transformers are designed around a tungsten tube filament. Osborne often works with our clients to increase the life-span of their vacuum tubes through the use of a regulated voltage supply.
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MIL-STD-1553 Test & Simulation Instrument for PXI
PXI-C1553
Avionics Interface Technologies
Dual redundant, single, dual or quad stream configurationsSoftware selectable Transformer, Direct, and Bus Stub Coupling Modes - Concurrent Bus Controller, 31 Remote Terminals, & Bus monitor operation - Full error injection and detection - Multi-level triggers for capture and filtering - Ten high voltage (up from 30V) programmable DIO lines - IRIG-B time code encoder/decoder with free-wheeling mode - Time Synchronization to PXI 10MHz reference clock - Real-Time recording and physical bus rep...show more -
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PD-Free High Voltage Test Transformer
Wuhan Sangao Electrical Test Installations Limit Co.
PD-free HV Testing Transformer is a high-end testing transformer which firstly marketed in China by our company. The high-light characteristic of the equipment reflects the smallness in size, lighter in weight clean ,oil-free,unnecessary static of field investigation ,longer working life without maintenance and slightness in non-partial-discharge. It is used for the insulators' voltage-resistance testing.
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Reactive Energy Regulator
MASTER
Lifasa - International Capacitors, SA
It measures the reactive power needs of an installation and gives the corresponding capacitor connection and disconnection orders to keep the cos φ preset. At the same time it allows to measure the main parameters of an installation (voltage, current, harmonics, active power, reactive power, etc.), by using 1 or 3 current measurement transformers.
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Handheld Turns Ratio & Winding Resistance Tester
TWR-H Series
Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resist...show more -
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20Hz Generator
Signals & Systems India Private Limited
In order to implement a 100 % stator earth fault protection based on subharmonic injection, a 20Hz voltage is injected into the generator star point. The 20-Hz generator SGEN-1001 is used in combination with the Band Pass Filter SBPF-1001 in the Stator Earth fault protection. The injection can be performed by connecting the SGEN-1001 and the SBPF-1001 to the load resistor of an earthing or neutral transformer. If an earth fault occurs in the generator star point, the 20 Hz voltage drives a current through the fault resistance. From the driving voltage and the fault current, the protective relay determines the fault resistance.
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Replacement Selenium Surge Suppressor Specialists
Surge suppressors are used to protecting circuits from transients (sudden, brief increases in voltage). Transients of widely varying magnitudes are caused by such circuit components as motors, coils, magnets, relays, and transformers. They are found in all electrical systems and are notorious for damaging diodes, SCRs, transformers, triacs, and relay contacts.
