The NewCode relay from NewElec is an ISO 9001:2000 compliant, locally designed and manufactured three phase motor protection and control relay. Featured are seven inputs with differential voltages 24 to 220 VAC or DC and four fully programmable output contacts. The design accentuates the need for user friendly operation in that it has advanced LED indications for I/Os, fault indication, relay address, infrared data communications and the memory detachable module for easy relay replacement and paramatisation.
The micro-controller based precision instrument offers advanced protection and control features with starter logic functions. The relay is designed to cater for the low voltage motor protection market and is available in different current models. The current transformers, including the core balance current transformers are external.
The relay is fully configurable with the aid of front-end software or a MMI. Event records can also be downloaded onto a memory stick for further analysis. All settings are password protected and the relay has an onboard database where time and date stamped records are kept. Two types of records are stored, namely fault and event records. The front-end has a data recorder and a spectrum analyser which could be used to analyse motor performance and supplied power quality respectively. The spectrum analyser can detect up to nine harmonics on any of the phase currents.
NewCode detects earth leakage currents with the aid of the external core balance current transformer and is configurable to operate in inverse definite minimum time (IDMT) or instantaneous definite time (IDT) mode.
A unique feature is added to the relay in the form of simulation. This function could be used for personnel training or relay functionality testing.
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