Techimp HQ S.r.L
Strongly committed to innovation and research, Techimp (TECHnological IMProvements) Company stands for excellence in the field of innovative diagnostic technologies applied to electrical engineering.
- +39 051 199 86 050
- +39 051 199 86 099
- sales@techimp.com
- Via Toscana 11/C
Zola Predosa (BO), IT 40069
Italy
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Products
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product
Flexible Magnetic Coupler
FMC
The FMC (Flexible Magnetic Coupler) is a partial discharge sensor whose working principle is based on a direct magnetic coupling with the cable conductor and shield.It picks up a magnetic signal given by PD activity. His compact and robust design makes the FMC the optimal sensor for direct installation on cables and accessories such as joints and termination.This sensor has a sensitive side which has to face to the object under test, while the other side (shielded) reject the noise from the environment.
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High Frequency Current Transformer
HFCT Ø 140mm
Techimp Clamp High Frequency Current Transformer model 140 is an inductive sensor for partial discharge measurements. It is suitable for online /off line PD tests on : large diameter cables ; grounding rod bar ; etc. A TNC termination is available to connect the Clamp HFCT 140 to the TechImp PD analyzer : PDCheck , PDBase etc. The arrow indicates the requested input current (Iin) direction to get coherent output voltage (Vout) polarity respect to ground. When the sensor is installed with the arrow directed to ground, the detected voltage signal (Vout) has the same phase of the input current (Iin).
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Horn Antenna
Horn antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in electric assets like GIS and GIL or MV and HV power transformers. It is a broadband antenna with a flat response which makes Horn antenna suitable in a number of different applications. It has been optimized to operate in a frequency range suitable for PD activity monitoring and it was designed to provide maximum sensitivity and high gain.
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NLFA Notch
The NLFA is a multiple element device allowing several useful field configurations. The three internal elements,one low frequency amplifier, two notch amplifier each with the cut off freq. of 50Hz (or 60Hz for a specific version) can be used as independent ones or combined together to increase the notch function. The effect of the cascade of two notches is the increasing of the signal attenuation for the notch frequency.
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PDBase II
Even very skilled operators will find hard to make a diagnosis, in situations as the one mentioned above, through a mere visual evaluation of the pattern graph . Techimp new technology bases itself on the principle that efficient separation and identification of PD data can be achieved collecting PD pulses themselves and not only, as digital instrumentation commonly available does, PD pulse peak and phase.
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PD Coupler
Techimp Capacitive PD Couplers offer both the PD and sync signals references, allowing a thorough investigation of the signal originating inside the asset they are connected to.Techimp Couplers are individually tested according to the following international standards: IEC60358; IEC60694; IEC60270.
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PPS Clamp Transformer
PPS2 provides power supply to the PD detectors installed on HV cable when low voltage AC power is not available. The PPS2 takes the required power directly from the High Voltage power line under monitoring by means of units clamped on the HV power cable(s).PPS2 is designed to withstand High Voltage line failure events such as temporary overload and short circuit conditions. An internal detection and self limiting circuitry guarantees that PPS2 and the connected equipment survives in case of such events.
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Spiral Antenna
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.
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Tap Adapter
Techimp Voltage Tap Adapter is gender changer which allows the user to connect to the test tap (sometimes called power factor tap) of high voltage transformer bushings.While keeping the test tap well below the safety voltage level required by the manufacturer, the Tap Adapter lets the user to drain high frequency PD signals for diagnostic assessment of insulating materials.A synchronization signal can be derived as well.It is suitable for both single shot as well as continuous PD monitoring.Although it must be customized on the basis of the shape and dimension of the test tap (to be provided by the Customer), many models are readily available for the most established transformer bushings. A list of the presently available models is reported below.Several thousands of hours of operation are a guarantee of reliability and accurate design.
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TD Guard
TD Guard Intelligent Sensor is an on-line CONTINUOUS Capacitance and tan-δ monitoring system for transformer bushings. TD Guard Intelligent Sensor is the first and only instrument on the market providing absolute Tan-δ measurement in on-line permanent monitoring of transformer bushings, granting the best level of diagnostic leverage and reliability. Sensitivity better than 10-4.
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TEM Antenna
TEM antenna is a partial discharge sensor designed to receive electromagnetic (EM) emissions from a PD occurring in the monitored asset (like MV switchgears or LV and MV induction motors fed by power electronic impulses). It is a broadband antenna with a flat response which makes TEM 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 TEM the optimal sensor for direct installation on medium voltage Switchgears and motors. It can be virtually applied in any electrical equipment provided that it has apertures or EM transparent surfaces.
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TEV Antenna
TEV sensor is a partial discharge sensor whose working principle is based on a direct Capacitive coupling with a Switchgears earthed metal case. The two ends of TEV sensor can be coupled magnetically to virtually any opening on a metal Surface. It picks up the electric signal given by PD activity onto the two metallic surfaces. Thanks to its special design has high sensitivity, larger than other single ended TEV sensors. His compact and robust design (passive sensor) makes the TEV the optimal sensor for direct installation on medium voltage Switchgears.
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Portable PD Acquisition Unit
AQUILA
Techimp AQUILA has been expressly designed to respond to all these needs being a robust and compact portable all-in-one PD detection station providing a full range of options ideal for on field applications. It can cope with the toughest outdoor conditions while taking measurements on any electrical asset. 15 years of service experience has been condensed in this unit integrating TECHIMP innovative PD detection technology with multiple connectivity (Wi-Fi, Fiber Optics, USB, Bluetooth) and power supply.
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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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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 direct installation on high voltage Transformers. It can be virtually applied in any electrical equipment provided that it has apertures or EM transparent surfaces. Contact our sales department for consulting.
