CFL Series – PL

The Sonel MIC-5010 insulation resistance meter is a reliable tool for measuring insulation resistance up to 15 TΩ. The maximum measurement current is 1.2 mA or 3 mA, which guarantees the charging of an object with a large capacity in a short time. Each measurement, whether the programmed time expires or is manually interrupted, ends with the meter discharging the object. The device has unique algorithms that allow it to recognise the nature of the voltage present on the object, thanks to which the instrument can determine whether the voltage is the mains voltage – in which case the measurement will not be carried out – or whether it is the voltage generated by an electromagnetic field – in which case the measurement will be carried out. This makes it possible to carry out measurements in the presence of very strong electromagnetic fields where this was previously not feasible.The instrument is equipped with accessories which guarantee safety during measurements with all available voltages – both test leads, probes and crocodile clips meet extremely rigorous standards (guaranteed voltage strength up to 11 kV for test leads and 5.5 kV for crocodile clips and test probes). The accessories are supplied as standard with a handy carrying case. The high resistance of the device to interference means that cables as long as 20 m can be used for measurements.

The AR700 measures acoustic signals with multiple relocatable acoustic sensors mounted on the transformer. The software determines the defect location using the time difference of all incoming signals. Finally, these coordinates are shown in a 3D model of the transformer.AR700 device is used for measuring of acoustic signals on the external surfacesof gas-insulated switchgears, power transformers and other grounded tank high-voltage equipment.The acoustic signals are caused by partial discharges in the insulation, which is the site of the defects.The advantage of AR700 device is the quick installation of the relocatable acoustic PD sensors on the grounded external surface of high-voltage equipment. The sensors have magnetic holders thus making it unnessary to de-energize the equipment for the sensors installation.AR700 device has 4 synchronic channels for acoustic signal measurement. This gives the possibility not only to detect defects in the insulation, but also to locate them. The 3D location function of the AR700 device is unique for acoustic devices.