Recovery Voltage Meter (RVM) – B&C

Magyar fejlesztésű mérőműszer az olaj-papír szigetelési rendszerek általános állapotának vizsgálatára. A "magyar módszer". Cégünk egyik tulajdonosa, a B&C Kft. gyárja az egész világ számára Tettex márkanév alatt.

Könnyű, hordozható készülék 200 és 2000V között állítható mérőfeszültséggel. Az olaj papír rendszer polarizációs spektrumának vizsgálatával a papír nedvességtartalmára és öregedési állapotára lehet következtetni. Szigetelési ellenállásmérő funkcióval is rendelkezik.

Olaj-papír transzformátorok és papírkábelek vizsgálatára ajánlott. (Nemzetközi szinten folynak kísérletek a műszer használatának polietilén kábelek vizsgálatára történő kiterjesztésére.).  Termékismertető
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FRA 5310

HAEFELY_FRA_5310
Catalog ID: Frequency Response Analyzers FRA 5310
The FRA 5310 is a diagnosis instrument for the detection of mechanical distortions of transformer winding. These distortions can be caused by electro-dynamical forces which appear during short-circuits or by transportation damages during movement.The Sweep Frequency Response Analysis method is based on winding transfer function measured in a wide range of frequency. The system records the transformers _frequency response fingerprint”. Even small winding movements or distortions will cause legible change of transfer curve, which can be detected. Special active measuring probes minimize the influence of test object connecting and earthing which results in
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2914 Solid Test Cell

HAEFELY_2914

Catalog ID: 2914 Solid Test Cell

The 2914 test cell measures dissipation factor, relative permittivity, and specific resistivity of solid insulating materials such as paper and plastic foils.The test cell is equipped with a shielded measuring electrode which eliminates partial capacitances that influence test results.

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2903 Oil Test Cell

HAEFELY_2903

Catalog ID: 2903 Oil Test Cell

The precision test cell type 2903 measures the dielectric properties of liquid insulants such as insulating oil, it determines the dissipation factor tan delta and the relative permittivity (dielectric constant) r as well as the specific resistivity.The test cell has been designed as a cylindrical capacitor with a shielded measuring electrode (guard ring capacitor) & thus avoids partial capacitances, which might influence the test results.

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5288a Resonating Inductor

HAEFELY_5288a

Catalog ID: 5288a

The capacitive load range of the MIDAS System can be increased by using this Compensator Reactor (resonating inductor).The 5288a provides a manual tunable 12 kV, 40 kVA inductor coil. It comes into use mainly for power generator or other high capacitive loads on on-site testing.

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4762 Current Range Extender

4762_Current_Range_Extender

Catalog ID: 4762 Range Extender, 400A

This electronically controlled current transformer is specifically designed for current range extension in capacitance measurements. It has divider ranges of 1:10 and 1:100.The special transformer is accommodated inside a portable casing with all terminals on the top panel.

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SGDA Impulse Generator

HAEFELY_ SGDA

Catalog ID: SGDA

The SGDA impulse generators are the perfect solution for carrying out impulse tests on HV or UHV cables (5 kJ version) as well as on MV and HV power transformers (10 kJ version). Their small footprint and stable design meet the needs of universities and R&D centers. And with its unique Delta-structure, the SGDA impulse generators are easy to transport and erect onsite.The SGDA series are available for 5 or 10 kJ stage energy, with total charging voltages from 400 kV up to 3000 kV. Also, this system features the lowest internal inductance ever achieved and is

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HiAS 744 Impulse Analyzer

HAEFELY_HiAS_744

Catalog ID: HiAS 744

The HiAS™ 744 is the unique tailor made impulse analyzer for the industry. Haefely, the pioneer company for impulse testing since 1904, has been continuously developing and upgrading high-voltage impulse measuring/analyzing solutions over the years. The latest in a long line of distinguished impulse analyzers is the Highest Resolution Impulse Analyzing System HiAS™ 744. Haefely has set a new benchmark with unbeatable performance. The new front-end solution provides a 16-bit resolution at 250 MS/s with the highest measurement accuracy. Software, which has been upgraded to suit the new hardware, retains the comfortable interface proven and tested

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DMI551 AC, DC and Impulse Peak Voltage Measuring Instrument

HAEFELY_DMI551

Catalog ID: DMI 551

The Digital Measuring Instrument DMI 551 is an instrument for measurement of AC, DC and impulse peak voltages by means of 3 independent channels. The instrument can also be used for firing a generator or a chopping sphere gap and to trigger an oscilloscope or any other measuring device. The instrument has also implemented a flash detector to store and display the last voltage measurement and its polarity before a breakdown or flashover occurred.Typical main applications of the unit include measurements of a voltage divider output or for automated product testing where the DMI 551 is

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R 500 REF Reference Divider

HAEFELY_R500_REF

Catalog ID: R 500 REF, RCZ 500 REF

Reference dividers are used for comparative measurements for the calibration of measuring systems. Reference dividers type RCZ are designed for the calibration of voltage dividers for AC, DC, full and tail chopped impulse voltages. Of course they can be used for normal measurements also.Reference dividers type R are designed for the calibration of voltage dividers for full and front-chopped lightning impulse voltages. Also R dividers can be used for normal measurements.Reference dividers by Haefely meet all requirements of IEC 60060-2 in particular those with respect to measuring accuracy and step response.

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