Power Diagnostix makes a range of calibration charge injectors suitable for use in calibrating partial discharge measurements. The appropriate choice of a calibration instrument depends on the range of typical charge values of the PDs being measured. Calibrators can also be used for time domain reflectometry in cables to determine cable length and location of joints. By end of December 2003, the calibration laboratory of Power Diagnostix received the accreditation as calibration laboratory within DKD (Deutscher Kalibrierdienst). The audit for the accreditation was held by 'Physikalisch Technische Bundesanstalt' (PTB), the German authority of standards. Power Diagnostix calibration laboratory received the accreditation for impulse charge (pC), AC and DC voltages, as well as impulse timing parameters. Thus, Power Diagnostix is able to issue calibration certificates traceable to international standards. Download Cetrificate Download Specification of Calibration Quantities Product Information Calibrators

The ICMsystem is a digital partial discharge detection system suitable for a wide range of applications. The instrument is completely controlled by software using a GPIB or TCP/IP, GMS, Modem, fibre optic or direct serial link. Product Information ICMsystem Accessories

The ICMsys8 offers all features of the ICMsystem, but with true parallel 8 channel acquisition. The ICMsys8 provides the most user control of data acquisition parameters and the highest functionality. It is designed for acceptance tests on large power transformer. Product Information ICMsys8 Accessories

The ICMcompact Partial Discharge Detector is used for quality assurance and quality control tests of low and high voltage insulation. It can also be used for high voltage cable PD fault detection and location... Product Information ICMcompact Accessories

The SPECcompactcomprises a spectrum analyzer, a partial discharge (PD) detector and an RIV meter in one instrument. This combination enables PD measurements even with a large background noise e.g. in non-shielded test areas. Product Information SPECcompact Accessories

The AIAcompact is a portable unit for in-service acoustic partial discharge measurements on gas-insulated switchgear (GIS), transformers, and cable accessories. The instrument adapts to a variety of piezo-electric acoustic sensors and is supplied with a versatile sensor fixture. Additionally, the AIAcompact allows optionally partial discharge measurements on embedded or external UHF sensors. Product Information AIAcompact Accessories

The ICMmonitor is an instrument to monitor permanently the partial discharge activity of various high voltage aparatus, such as rotating machines, cable systems, power transformers, or gas-insulated switch gear (GIS). The ICMmonitor is adapted to the various requirements of these different tasks by means of specialized coupling units, preamplifiers, and communication devices. Key parameters for the discharge activity and the on-going degradation, such as average discharge current (NQS) or peak charge level (Qp) are monitored and stored with trending diagrams. Modems and fiber optic links enable remote acces and analysis... Product Information ICMmonitor (pdf) Accessories (pdf) Partial Discharge Monitoring on Rotating Machines, GIS and Power Transformers (pdf)

The SPECmonitor is a partial discharge analyzer comprising a spectrum analyzer, an acoustic detector, and a conventional partial discharge (PD) monitor in one instrument. This combination enables PD measurements even with a large background noise e.g. on power transformer within substations or power plants. Observing the frequency spectrum of a harshly disturbed PD signal allows to select frequency bands with less disturbances. Using this selected frequency for a PD acquisition, gives a largely improved signal-to-noise ratio resulting in a clear pattern acquisition. The combination of spectrum analyzer and PD detector within one instrument greatly expands the measurement possibilities when analyzing the insulation systems in a noisy environment. Product Information SPECmonitor (pdf) Accessories (pdf) Partial Discharge Monitoring on Rotating Machines, GIS and Power Transformers (pdf)

The RIVmeteris an instrument for the measurement of ‘Radio Influence Voltage’ according to NEMA 107-1987 and other relevant standards. The instrument has a bandwidth of 9 kHz and a tunable center frequency of 600-1300 kHz. Technically, the RIVmeter is a selective µV-meter. However, the meter reading is weighted according to the CISPRE weighting curve, whereas the repetition rate has a strong impact on the reading. The RIVmeter is an ideal instrument to replace outdated RIV measurement instruments in a transformer testing lab. Product Information RIVmeter

The TDAcompact is a portable capacitance and tand analyzer. The focus of the instrument's application is on the analysis of the epoxy-mica insulation of rotating machines. Besides this, the unit is applicable for oil-paper insulation systems and especially for mass-impregnated cables. Product Information TDAcompact

The HVcompact is a high voltage meter with an auto-ranging oscilloscope display of the voltage waveform. The unit displays Û, Û/√2, Urms, frequency, and the crest factor. To improve the readability, one selected measurement is displayed using larger characters. To protect test specimens, the unit offers a pre-settable voltage limit, which trips a relay output. The divider ratio is widely adjustable and is kept with a non-volatile memory. Product Information HVcompact

Increasing the high voltage stepwise is a task that is often required during type testing and production testing of high voltage equipment. The STEPcompact is an instrument to automate such step tests. The unit combines the control function with the measurement capabilities of a high voltage meter. As a stand-alone instrument, the STEPcompact can be easily moved between different high voltage test sets. Product Information STEPcompact

The HVcontrol unit combines all standard functions required to manually operate a high voltage transformer. It includes a safety contact loop, the measurement of primary and secondary current, as well as of the primary voltage. User-settable limits for the primary and secondary current trip the main circuit breaker. The safety loop, as well as the emergency stop is hard wired and equipped with forced contacts. Product Information HVcontrol

The FOsystem is a complete set of instruments for convenient fiber optic transmission of analog signals from different sensors (e.g. temperature, pressure, acoustic, voltage, current). The signal bandwidth covers DC up to 10MHz. Product Information FOsystem

The ICMacoustic system comprises of FOT4 transmitter units and FOR4D receiver units. Each channel acts as an independent transient recorder with its own storage and settable acquisition speed and storage depth. The sampling rate is 10Msample / second and, hence, sufficient to even acquire the pointing vector of the incoming acoustic wave, when using two dimensional three-sensor configuration. The modular system accepts up to twelve optical channels and comes with high-speed controller card to communicate with a notebook. Here, the ICMacoustic software offers full control of the system. Besides this, the FOS4 system has additional signal output on the rear side and can be used as a digital isolated amplifier without the use of any software. Product Information FOS4 & ICMacoustic

The ATTanalyzer was designed to support commissioning of gas-insulated switchgear (GIS) yards. Signals of up to 16 acoustic sensors are connected by means of fiber optic cables to the instrument. Precise localization of breakdown within the GIS is provided by comparing the travel-time of the breakdown sound to the various sensors using a 1µs-sampling circuit... Product Information ATTanalyzer

The ICM®flex high voltage instrument family offers inherent operator safety and greatly simplifies distribution class cable testing and other field tasks involving partial discharge and tan δ testing. With the unique concept of the ICM®flex instruments the entire acquisition hardware is placed on high voltage potential right at the position where the signals are. Thus, no signal cables are needed, as the instrument is fully self-contained and battery operated. The instruments are fully remote controlled via high speed Bluetooth® communication. Product Information ICMflex