NewElec’s electronic motor protection relays can be used to access operating information. The KE and NewCode models are able to store up to 2000 time stamped events and 60 fault conditions with all pertinent data in separate files for easy user inspection. The relays also provide information on apparent power versus real power consumption of the motor. This information is stored in a rotating buffer. In addition, the new generation relays are extremely user-friendly and provide new protection features usually not found in competing products.
The relay’s advanced features include stall detection that allows faster tripping of the motor on start stall. The dry run protection allows for priming time and time to trip with optional timed automatic re-set and re-start provides easy control of sump pump operation.
To ensure improved safety, reliability, equipment protection and space saving, the relays offer selectable instantaneous or IDMT earth leakage tripping curves with user-selectable sensitivities with harmonic filtering. The relays’ settings and information are accessible by means of an infrared device therefore there is no need to open the MCC doors.
The earth insulation lockout feature protects the motor against starting when its winding insulation level is below a set threshold. Multi protocol compatibility caters for Profibus, Modbus and Canbus protocols. LED indications for all faults and I/Os ensure ease in commissioning and fault finding. The removable memory module stores all current relay settings and addresses, making replacing a faulty relay quick and easy.
The relays can accommodate expansion modules, cater for RDT inputs and include 4 to 20 mA analogue signals.
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