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The Megger UHF Partial Discharge Detector can be used to take accurate spectrum, time domain and partial discharge level measurements, thereby helping the user to identify faults and avoid accessory failures. Its long battery life (10 hours) ensures that the user is able to easily complete a full day of surveying without interruption. Please see the video below for a quick overview of this instrument’s capabilities and operating interface.
This instrument’s high bandwidth and compatibility with an array of sensors ensure that it can be used to perform partial discharge (PD) surveys and take PD measurements in both medium voltage and high voltage substations. Furthermore, it is supplied with a di-pole antenna for conducting UHF surveys.
The Megger UHF PDD's high bandwidth facilitates its ability to measure local online PD activity within frequencies above those of common disturbances.
Another advantage of this high bandwidth is that when it is used with the PRPD (Phase Resolved Partial Discharge) pattern display the Megger UHF PDD is able to measure partial disturbance more accurately; this is because the instrument’s internal and/or standard mains plug synchronisation sensor ensures that the instrument is correctly synchronised with the power frequency. Therefore when the Megger UHF PDD’s high bandwidth and PRPD pattern display are used in conjunction with one another the Megger UHF PDD is able to detect, differentiate and ultimately display different defects and discharges; for example corona, surface and dangerous internal partial discharges are all separately categorised, ensuring that the user can clearly distinguish between the three.
Further to this, the Megger UHF Partial Discharge Detector’s inclusion of both radio frequency (RF) and ultra-high frequency (UHF) measurement capabilities, results in its ability to diagnose partial discharge within an array of equipment, such as:
It is possible to purchase additional sensors in order to expand the Megger UHF Partial Discharge Detector’s scope-for-use. For example:
(***Please contact our sales team for more details***)
This versatility of use makes the Megger UHF Partial Discharge Detector a practical, cost-effective, accurate instrument. Its capabilities can be extended even further as a result of its dual channel functionality. This feature facilitates the Megger UHF PDD’s unique ability to compare two phases or two UHF sensors.
The Megger UHF Partial Discharge Detector offers a comprehensive selection of complex measurement functions, however, the Megger UHF PDD’s interface and operations system have been optimised to be as simple and easy-to-use as possible. The user is able to select how he/she wishes to interact with the instrument, either via the six-inch colour touch-screen or via a foil keypad. Secondly, in the interest of simplicity, menus and settings are kept to a minimum and, in order to aid the user’s ease-of-use, this instrument will guide the operator through each measurement process. Finally, the Megger UHF Partial Discharge Detector works to maintain its own accuracy as it also features a built-in pulse generator which is optimised to perform sensitivity/ functionality checks.
Therefore the Megger UHF Partial Discharge Detector is an accurate, comprehensive, yet simple-to-use addition to any maintenance or service team’s toolkit.
|UHF||150 ... 1000 MHz|
|RF||100 kHz … 70 MHz|
|Sensitivity||- 90 dBm|
|Display||6 inch, colour touch-screen, 640 x 480 pixels|
|Internal memory||10 Gb|
|Charger||Input voltage 100 … 240 V, 50/60 Hz, output voltage 12 VDC|
|Internal battery||Li-Ion 7.4 V / 12.25 Ah|
|Battery life||> 10 hours|
|Charging time||± 6 hours|
|Wireless||868 MHz (standard)|
|(mains sync)||913 MHz (US-version)|
|Data||USB 2.0 (host)|
|Operation||- 20 °C … 50 °C|
|Storage||- 30 °C … 70 °C|
|Relative humidity||93 % at 30 °C (non-condensing)|
IP 67 (in transport case)
|UHF PDD||1.9 kg|
|Transport case||3.8 kg|
|Total weight||6.9 kg (incl. device, mains sync, charger, antenna and cables)|
|Dimensions (W x D x H)|
|UHF PDD||25 x 19 x 10 cm|
|Transport case||46.5 x 28 x 34.5 cm|
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