Varistor
A non-ohmic voltage-dependent resistor whose resistance is low when magnitude of voltage is high.
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Multifunctional testers
MI 3152 EurotestXC
MI 3152 EurotestXC is an instrument from the new generation of Metrel’s multifunctional measuring instruments. The already well known functions like complete installation safety testing according to IEC/EN 61557 and AUTO SEQUENCE testing of TN, TT and IT earthing systems are managed by a completely new user interface based on large colour touch screen display. A wide range of functions is included: from on-line voltage monitoring, phase sequence testing, varistor testing, earth resistance measurement, illuminance measurement and TRMS current measurement up to RCD tests, line and loop impedance tests, specific earth resistance measurements as well as ISFL measurements and the IMD tests.
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Clamping Voltage Tester
MIG0603CLV2
The MIG0603CLV2 is a generator for clamping voltage testing of varistors. It has circuits with four different source impedances and up to 15 different measurement ranges. The instrument is used to perform varistor clamping voltage tests on up to 1000 V varistor types. The test impulse is a 8/20µs current waveform up to 500A which is maintained over the entire load range.
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Current Generator
MIG1260
MIG1260 is a current generator with wave shape 8/20 μs. The exact waveform delivered is a function of the surge generator and the impedance to which the surge is applied. The generator can deliver up to 60kA impulse current supported by 12kV impulse voltage, making it ideal for testing big varistors with high hold-on voltage. Mechanically the MIG1260 consists of one large rack and a separate control console with high voltage output terminals protected by a glass acrylic test cabinet.
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8-Channel Relay Output Board
PX8500
The PX8500 is an external 8-channel relay board for the connection of digital output boards. It can be cascaded in 16, 24 and 32 relays and is intended for mounting on DIN supporting rails. The board provides a convenient interface between an industrialprocess and the SUB-D connectors on ADDI-DATA boards. The change-over contacts of the relay are controlled through 24 V signals. The 24 V voltage supply is protected through varistors and transil diodes. The board is intended for the use with 220 V supply. The creeping distance (acc. to DIN VDE0110) and the connector cross sections allows high-power switching (up to 2,500 VA).
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Surge Suppressor Tester
(SST) 450
The ATSI SST-450 Surge Suppressor Tester is designed to quickly and easily test allcommonly used transient voltage suppressors: metal-oxide varistors (MOVs), gas-discharge tubes (GDTs), silicon avalanche diodes (SADs), thyristor surge protective devices (TSPDs), and hybrid devices.
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High Voltage 50 Ω Pulse Generator
TLP-12010A
High Power Pulse Instruments GmbH
The high-current TLP/HMM test system TLP-12010A offers advanced features intended for the characterization of semiconductor devices, discrete components, such as TVS, varistors, capacitors, gas tubes, circuits and systems in the high power time domain. It includes high current I-V characteristics inpulsed operation mode, turn-on/off transient characteristics of the device, breakdown effects, charge recovery effects e.g. reverse recovery, Safe-Operating-Area (SOA) and ESD measurements in general.
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Power RC Snubbers
Single phase and Three phase availableSuitable for AC and DC voltage applicationResistance and rate power of Resistor : 1 - 50W ( can be customized to 100W or above )Voltage: 63Vac, 125Vac, 280Vac, 480Vac, 500Vac, 600VacOperating temperature : -25~+85C / -40~+105CTesting Voltage : : 1.5 x Un 10sec ( can be customized )Varistor and Diode options available. Different applications can have very different electrical and mechanical profile requirements.Please feel free to send your application details for a suggestion and quotation.
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Clamping Voltage Tester
MIG0603CLV1
The MIG0603CLV1 is a generator for testing varistors. It has circuits with three different source impedances and up to 11 different measurement ranges. The instrument is used to perform varistor clamping voltage tests on up to 1000 V varistor types. The test impulse is a 8/20µs current waveform up to 200A which is maintained over the entire load range.
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Lightening Protection Components Tester
FC-2GB / 465
Wuhan Huatian Electric Power Automation Co., Ltd.
Suitable for testing zinc oxide arresters (varistor), cermet two, three-electrode discharge tubes and other overvoltage protection components.
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Components - Active Multipliers (FDA)
FDA Series
Farran offers a range of broadband varistor multipliers based on planar GaAs Schottky diodes. All devices are fixed-tuned and operate without bias. They offer high efficiency and full waveguide band coverage
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Impuls Current Generator
Hilo-Test manufactures power generators for surge current material and safety tests, in particular for the examination of diverting elements such as gas discharge tubes, varistors, SPDs, and components in which such protective elements are installed, according to according to the IEC / EN 61643-11. Below you will find the right solution.
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Frequency Multipliers (WR and D Series)
VDI offers a broad range of millimeter-wave varistor mode, passive frequency multipliers based on planar GaAs Schottky diode technology. Frequency doublers and triplers are used to extend the frequency coverage of microwave and millimeter-wave sources.
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Four-Pole Metal Oxid Varistor Surge Arrestor
PIIIM-275/3+1 Vseries
PIIIM-275/3+1 Vseries is a four-pole, metal oxid varistor surge arrester combined with gas discharge tube, Type 2 according to EN 61643-11 and IEC 61643-11. These arresters are recommended for use in the Lightning Protection Zones Concept at the boundaries of LPZ 1-2 (according to IEC 1312-1 and EN 62305), where they provide the equipotential bonding and discharge of the switching overvoltage, which is generated in power supply systems entering the building. The main use of PIIIM-275/3+1 Vseries arrester is in all kinds of industry, residential and administration buildings. They are to be placed into the subsidiary switchboards or control boxes.
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8-Channel Relay Output Board With Housing for Mounting on a DIN Rail
PX8500-G
The PX8500 is an external 8-channel relay board for the connection of digital output boards. It can be cascaded in 16, 24 and 32 relays and is intended for mounting on DIN supporting rails. The board provides a convenient interface between an industrialprocess and the SUB-D connectors on ADDI-DATA boards. The change-over contacts of the relay are controlled through 24 V signals. The 24 V voltage supply is protected through varistors and transil diodes. The board is intended for the use with 220 V supply. The creeping distance (acc. to DIN VDE0110) and the connector cross sections allows high-power switching (up to 2,500 VA).
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Current Tester
MIG1248
The MIG1248 is a current generator with wave shape 8/20. Maximum impulse current is up to 48kA supported by a 12kV impulse voltage making the MIg1248 ideal for testing large varistors. An intergrated test cabinet can accomodate test components up to 5cm cube.
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Current Generator
MIG12100
MIG12100 is a current generator with wave shape 8/20 ìs. The exact waveform delivered is a function of the surge generator and the impedance to which the surge is applied. The generator can deliver up to 100kA impulse current supported by 12kV impulse voltage, making it ideal for testing big varistors with high hold-on voltage. Mechanically the MIG12100 consists of two large racks and a separate control console with high voltage output terminals protected by a glass acrylic test cabinet.
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Multiple Impulse Generator
MIG0624LP1
MIG0624LP1 is a multiple impulse generator with four independent outputs each of 6kA and 1 Ohm source impedance. These are combined to deliver impulses up to 24kA. The impulses generated by this equipment are the 8/20µs and 10/1000µs current impulses. Typical applications would be testing of varistors, gas arresters and other surge protection devices.
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Surge Arrester Testing
SCAR 10
This MOV- Metal Oxide Varistor test system is the perfect device to perform analysis and diagnostics on metal oxide arrestors. It is supplied with a special current clip-on transformer designed for the measurement of current leakage.
