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VLF Insulation Testing
Weshine Electric Manufacturing Co., Ltd
1. The current, voltage and waveform data are directly obtained from the high voltage side, so the data is accurate.2. It has over-voltage protection function. When the output exceeds the set voltage limit, the instrument will stop for protection, and the action time is less than 20ms.3. It has over-current protection function: it is designed as high-voltage and low-voltage dual protection, and the high-voltage side can carry out accurate shutdown protection according to the set value; when the current on the low-voltage side exceeds the rated current, it will carry out shutdown protection, and the action time is less than 20ms.
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VLF Testing and Diagnostics Unit
Frida TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR frida TD. The portable and high performance high-voltage testing and diagnostics device is available in two different configurations: frida: Used for cable and cable sheath testing of medium-voltage cables and electrical equipment up to 20 kV. Another function is insulation testing on electrical equipment.frida TD: Expands the functional scope of frida with the tan delta diagnostics and Monitored Withstand Test (MWT) that combines the cable testing and dissipation factor measurement. This allows for an accurate and comprehensive assessment of the cable condition.* Cable testing and dissipation factor diagnostics in one device* Easy and quick test setup* Automatic testing and diagnostic sequences* Compact dimensions and lightweight
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VLF Insulation Testing
VLF testing uses very low frequencies as part of an AC cable maintenance routine. VLF testers are smaller and more practical than AC testers but output the same amount of power as a 50 Hz mains device. This combination of size and power makes Very Low Frequency cable testing perfect for testing longer sections of cable and apparatus
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VLF Voltage Generators
Fivestar HV Testing Equipment Co., Ltd.
VLF hipot is an AC output tester with an output frequency of 0.1 Hz or lower rather than 50/60 Hz. Although the frequency is very low, it is an alternating current with polarity reversals every half cycle.
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VLF test system
BAUR PHG 80 portable
BAUR Prüf- und Messtechnik GmbH
Portable, high performance test generator with VLF truesinus technology. The BAUR PHG 70/80 portable VLF test systems are used for cable and cable sheath testing of medium-voltage cables of up to 50 kV and electrical equipment.* 3 voltage shapes in one device: VLF truesinus, VLF square wave and DC voltage* For medium-voltage cables of up to 50 kV operating voltage* Cable testing, fault conditioning, cable sheath testing
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KPG 24kV VLF Test Set
Kilovolt Prueftechnik Chemnitz GmbH
The portable cable test set KPG 24kV VLF is used for testing of medium voltage cables in accordance to the standards IEC 60502-2, CENELEC HD 620 & 621, DIN VDE 0276/620 & 621 and IEEE 400.Test is carried out with a low strain practice with VLF (very low frequency) test voltage of preferably 0.1Hz.VLF testing enables detection of damages of insulation within shortest test time.
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AC Hipot Testers
VLF
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Programmable micro-controller• Advanced digital frequency technology• Built-in printer• Portable• AC HIPOT testing of cables and electrical apparatus is now easier than before• UDEY VLF testers are suitable for testing cables, transformers, switchgear, rotating machinery, & other electrical apparatus.
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VLF Testing and Diagnostics System
PHG 70 TD/PD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 70 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 voltageCompact, 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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VLF Test System
BAUR PHG 70 portable
BAUR Prüf- und Messtechnik GmbH
Portable, high performance test generator with VLF truesinus technology. The BAUR PHG 70/80 portable VLF test systems are used for cable and cable sheath testing of medium-voltage cables of up to 50 kV and electrical equipment.* 3 voltage shapes in one device: VLF truesinus, VLF square wave and DC voltage* For medium-voltage cables of up to 50 kV operating voltage* Cable testing, fault conditioning, cable sheath testing
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Fully Programmable Digital Design with Wireless Remote Control
VLF E Series
The VLF E Series uses a state-of-the-art, switching power supply design with wireless computer controls. Equipped with HVI’s E-Link software, the E Series stands among the most advanced cable testing systems available. Our customers praise its flexible data capture and reporting capabilities, full remote operation via XBee wireless technology, and seamless tan delta testing with HVI’s TD units.
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Partial Discharge and Tan Delta
PDIX Series
PDIX is a combined partial discharge and tan delta cable diagnostic testing system. By combining HVI’s VLF products with PDIX products, users can perform VLF AC withstand, partial discharge detection, and tan delta measurement on medium and high voltage cables, rotating machinery, and other apparatus with one integrated package fully supported by HVI & PDIX.
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Very Low Frequency Control Element
VLFC
Think extremely low. With a range of 13-30 Hz—the lowest reach of any Meyer Sound speaker—the VLFC extends below the threshold of human hearing to let your audience feel the sound like never before.
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Tan Delta Test System
Diagnostic test that indicates the degree of cable insulation degradation. Rather than using only a VLF instrument to perform a go/no-go proof test, the Tan Delta, used in conjunction with a VLF hipot, permits the user to grade the deterioration level of many cables in order to prioritize replacement, rejuvenation, or to determine what additional tests may be useful.
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VLF Testing and Diagnostics Unit
Frida
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR frida. The portable and powerful high-voltage testing and diagnostics device is used for cable and cable sheath testing of medium-voltage cables up to 20 kV and electrical equipment. Another function is insulation testing on electrical equipment.* Precise and non-destructive determination of the cable condition* Easy and quick test setup* Automatic testing and diagnostic sequences* Compact dimensions and lightweight
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3-C Multi-Sensor Broadband Streamer
Sentinel® MS
Sentinel MS is the new member of the industry standard Sentinel product line offering multi-sensor acquisition along with the very best low frequency, low noise, and highest reliability solid streamer available today.
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VLF/DC Hipots
HVA28TD
The smallest VLF /DC unit on the market now includes an integrated Tan Delta measurement system to perform advanced electrical insulation diagnostics. For example, this can be extremely useful when performing advanced diagnostics on cable systems as it provides valuable information as to the condition of the cable insulation and shield.
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VLF Receiver
T-Vlf
The VLF receiver is specially designed for high productivity surveys, in ground water and mining exploration. No orientation of the operator with respect to the direction of the transmitter is required since three magnetic sensors measure the components of the VLF field. Tilt or horizontality of the sensor unit is neither required since two inclinometers correct for tilted position.
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VLF Testing and Diagnostics System
PHG 80 TD/PD
BAUR Prüf- und Messtechnik GmbH
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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E-Series Average Power Sensor
E9304A
Refer to the E9301A for standard power sensor features Low frequency coverage (9 kHz to 6 GHz) for EMC/EMI test applications such as the radiated immunity test (IEC61000-4-3)High sensitivity (-60 to +20 dBm) and fast measurement speed to reduce the time taken to calibrate radiated field uniformity and EMC/EMI test receivers Measure transmitter power and receiver sensitivity at Very Low Frequency (VLF) to microwave frequencies Special option available to 18 GHz Compatible with EPM (new N1913A/ 14A, E4418B/ 19B), EPM-P (E4416A/ 17A) and P-series (N1911A/ 12A) power meters
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Portable High-Voltage VLF Test System
VLF-60
The system is designed for VLF (0.1 Hz) withstand testing of cross-linked polyethylene (XLPE) insulated cables.Integrated Tan Delta (tan δ) measurement module allows to evaluate the general condition of cable insulation according to IEEE 400.2-2013 international standard.
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GEOPHYSICS, SEISMIC, and ATMOSPHERICS RESEARCH RECEIVER
Type RAS-1
Called the RAS-1, the receiver is designed for ultra low and very low frequency scientific research work, including the exploration of low frequency emissions due to seismic and earth-quake activity, study of atmospheric phenomenon such as "whistlers", and low frequency Sudden Ionospheric Disturbance (SID) and electromagnetics phenomenon. The RAS-1 will receive signals from under 200 Hz. To over 250 KHz in both narrow bandwidth modes as well as broad badnwidth reception.
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VLF/DC Hipots
HVA28
The HVA28 is the smallest, lightest VLF/DC test instrument on the market. It is about as small as you can make it! Do not let its compact size lead you to believe this unit is lacking in power. The instrument can test up to 100,000ft/30kms of cable (at reduced voltage and frequency). In addition to cables, this unit can test vacuum bottles, transformers, motors / generators, cable sheath/shields, etc.
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3-AXIS DIGITAL AC GAUSSMETER: 1-200 kHz
IDR-200
Integrity Design and Reseach Corp.
Typical Applications include checking the frequencies and magnetic fields (BW: 1 kHz -200 kHz) produced by equipments such as computer monitors, television sets, video display terminals, induction heaters, industrial, Radar, scientific/medical equipment, walk-through/hand-held detectors and ground wave energy network; etc. For more information about VLF magnetic fields and the VLF gaussmeter , see the paper titled "Very-low-frequency electromagnetic field detector with data acquisition," IEEE Trans. Instrum. Meas.,vol. 58, no. 1, pp. 129-140, Dec. 2008. by S. Hanna.
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VLF Diagnostics System
PHG 70 TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 70 TD. The combination of the PHG 70 programmable test generator with the BAUR dissipation factor measurement system produces the cable testing and diagnostics system PHG TD. It is operated via PC control. Dissipation factor measurement and diagnostic testing sequences can be programmed in the menu, after which the dissipation factor measured values are automatically determined in various voltage steps and a final evaluation is conducted.* Biggest dynamic range of tan delta measured values from 1 to 10-4 with a cable capacitance >10 nF to 20 uF* High resolution +/- 1x10-5 applicable even in new PE/XLPE cables* Insensitive against interferences due to complete mains separation* Lowest time required for assessing a medium-voltage cable (3-phase approx. 1 hour)
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High-voltage Testers
Operational safety and reliability of electrical equipment and cables directly depend on the dielectric strength of the insulation. Portable and mobile high-voltage testers from KharkovenErgoPribor Ltd. are used for acceptance and operational testing of substation equipment and cable lines, as well as for checking the reliability of personal electrical safety equipment. Our testers range is represented by test systems that allow conducting high-voltage tests with DC and AC voltage, testing polymer insulated cables with very low frequency, testing and locating faults in cable sheath, as well as performing the initial burning of insulation on damaged sections of cable lines.
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Analog Seismic Sensors
Seismometers
Designed to yield the performance needed for scientific studies, our seismometers are used for monitoring long period (very low frequency) signals. These units are often used for earthquake monitoring and for triggering potential alerts during natural disasters such as tsunamis.
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Frequency Counters
Handheld and bench-top frequency counters up to 6GHz Universal counters with VLF capability and pulse measurement and totalizing in addition to frequency/period.
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VLF Diagnostics System
PHG 80 TD
BAUR Prüf- und Messtechnik GmbH
Cable testing and diagnostics with the BAUR PHG 80 TD. The combination of the PHG 80 programmable test generator with the BAUR dissipation factor measurement system produces the cable testing and diagnostics system PHG TD. It is operated via PC control. Dissipation factor measurement and diagnostic testing sequences can be programmed in the menu, after which the dissipation factor measured values are automatically determined in various voltage steps and a final evaluation is conducted.* Biggest dynamic range of tan delta measured values from 1 to 10-4 with a cable capacitance >10 nF to 20 uF* High resolution +/- 1x10-5 applicable even in new PE/XLPE cables* Insensitive against interferences due to complete mains separation* Lowest time required for assessing a medium-voltage cable (3-phase approx. 1 hour)
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Thumpers and Cable Fault Location
Cable testing can be broken down to different steps of the process, starting with a time domain reflectometer test to look for an incident signal on the line or, in some high resistance situations, VLF testing. These tests will identify a fault, allowing you to move on to pre-locating it. In some low resistance faults this will occur alongside the identification via the TDR.
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Portable PD Diagnostics System
PD-TaD 60
BAUR Prüf- und Messtechnik GmbH
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
