Developed by NewElec, the ProLoc LV motor protection and management relay enhances the protection and safety aspects desired by clients in the coal mining industry. It comprises two separate but inter-related components: the panel mounted protection relay incorporates four inputs and two outputs; and the door mounted MMI provides a further three output contacts.
The design focuses on improving the safety of users to the dangers of electrical shock. The relay incorporates features such as earth insulation lock out, frozen contactor pole detection and lock out, running earth leakage protection, earth fault detection and back-tripping. It also provides short circuit detection with enhanced trip time and fault level.
It provides ease of paramatisation as the MMI stores up to five different settings with its associated logic functions. Thus the user is able to switch from one motor setting to the next with a few button presses.
In addition, the relay features starter intelligent functions with user selectable labelling to identify motor kW and trip conditions. Motor management functions including event and fault records can be downloaded by the user.
With Profibus communications, ProLoc offers powerful motor protection benefits and logic functions that control start and trip sequences. A useful emulator/simulator runs with the free front-end software providing a training platform for the electrician.
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