T&D World Magazine

Utility Lineman Software App Now Manages Multiple ACRs

NOJA Power has announced an update of its Automatic Circuit Recloser (ACR) software application. The app runs on Apple’s handheld devices and allows the linemen to check the status of ACRs and make changes to their operation without having to climb up to the device’s pole-mounted control cubicle. Use of the app improves safety because the lineman no longer has to undertake a hazardous climb that is often attempted in poor weather, high off the ground and close to cables that carry tens of thousands of volts.

Running on an Apple iPhone, iPod touch, iPad or iPad mii, the Recloser App communicates with the NOJA Power OSM series ACR’s RC10 control and communications cubicle via a TCP/IP connection. The app can configure and then retain the fixed IP address and port number for each ACR, which is then stored in a device list that identifies each unit with a name or code. The lineman can then select, configure, control and interrogate any ACR from the list providing he has access to the Internet via a fixed line, GPRS, WiMax or Wi-Fi. The new version of the app also takes full advantage of the larger screen of Apple’s tablet computers compared to the company’s smartphones.

The app allows the lineman to read three phase-current and -voltage (voltage on all six bushings), frequency, power, power factor, power flow direction and energy measurements. In addition, the app also allows the technician to control ACR functionality such as Trip/Close, Local/Remote, Active Protection Group, Protection On/Off, Auto Reclose On/Off, Live Line On/Off and Earth Fault On/Off among others.

“The previous version of NOJA Power’s proved popular because it meant that Linesmen didn’t have to climb up to the control cabinet to check and manage the ACR,” explains Neil O’Sullivan, Managing Director of NOJA Power. “But customers asked us to update the app so they could control multiple ACRs from the screen of an Apple handheld device."

The updated version (1.4) of the NOJA Power Recloser App for the company’s OSM range of ACRs is available as a free download from the Apple App Store.

NOJA ACR app

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