PD Hawk - Brochure

PD Hawk™switchyard PD locator SAFELY locates internal Partial Discharge (PD) activity in open terminal switchyardsPRODUCT CODE: PDH1unique instrumentThe world’s most effective PD locator for switchyardsbusiness benefits Prevents costly failures Rapid return on investment Gathers valuable data on asset condition Extends asset lifeuser features Uniquely fast & accurate Easy to use Portable & rugged Safescan a whole switchyard in minutes1. Switch on – the PD Hawk™ is instantly ready for action2. Sweep the switchyard for radio emissions3. Filter out irrelevant emissions e.g. mobile phone, television signals and non-destructive corona activity4. Watch/listen to readings as they peak, to focus on the source of emissions5. Rotate instrument for polarity, to locate strongest signals6. Use pulse mode to confirm emissions are PD7. Note the severity and location of PD emissions8. Rate the health of the asset and its risk of failure9. Decide whether to investigate further and/or intervenefast focus on internal PD The PD Hawk™ measures emissions in the 47 – 1000 MHz frequency range but is factory tuned to focus around 800MHz, which is typical of internal PD activity. This enables the operator to disregard non-PD emissions, including harmless corona activity, and eliminate false readings.The operator can listen to emissions via the built-in speaker and/or over headphones and/or view them on menu-driven screens, which display them as:cost-effective outage prevention The first sign of problems in switchyard assets is often sudden failure, causing expensive damage and outage. The PD Hawk™ identifies problems in assets BEFORE they fail, at a fraction of the cost of a single outage.Locate internal PD activity in: Instrument transformers Circuit breakers Isolators Disconnectors Surge arrestors Cable sealing endsMagnitude Locates problem assetsUndetected PD often leads to sudden failureFrequency Tunes out interference/coronaPD scanning identifies problems BEFORE they lead to failuresPulse timing Identifies signal typetel +44 (0) 151 339 4181fax +44 (0) 151 347 2404email sales@eatechnology.comweb www.eatechnology.comEA Technology LimitedCapenhurst Technology ParkCapenhurst, Chester UKCH1 6ESblahdblahdesign 10930Watch the PD Hawk™ ONLINE VIDEO at www.eatechnology.com/pd-hawkContact us now to learn more MEASUREMENTSensor UHF Directional AntennaMeasurement Bandwidth 47 – 1,000MHzResolution 1dBAccuracy ±1dBHARDWAREEnclosureSelf-coloured vacuum formed plastic caseIndicatorsColor back-lit LCDCharging indicator LEDControls2 off Rotary Encoders with Push-ButtonsConnectors2.1mm LV DC Charger Input3.5mm stereo headphone socketHeadphones Min. 8 ohmsENVIRONMENTALOperating Temperature 0 – 55 degrees CHumidity0 – 90% RH non-condensingIP Rating 65DIMENSIONSSize 420mm x 420mm x 120mmWeight 2.4kgPOWER SUPPLIESInternal Batteries 3.7V 6.8Ah Lithium-IonTypical Operating Time approx. 8 hoursBattery ConservationAutomatic ‘switch off’ when low battery detectedBATTERY CHARGERRated Voltage 90 – 264V ACFrequency 47 - 63HzCharging Voltage 18V DCCharging Output Current 0.7 ABattery Charging Current: 2.6 A @ 4.2VTime for Full Charge 3 hoursDimensions 74mm x 44mm x 34mmWeight 0.12 kgOperating Temperature 0 - 40 degrees CHumidity 20 – 85% RH non-condensingexample: internal PD failure PD Hawk™ specifications 2. PD activity, damage and detectable emissions increase3. Undetected PD causes flashover and sudden failure4. Sudden failure can be explosive1. PD starts to erode insulation