Cewe Prometer 100, Руководство пользователя

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Page 34 of 72 Prometer 100 User Manual BGX501-943-R01
Battery Remaining
Hours
Same for HV3 and HV4
6.5 Events
The Prometer 100 has a number of defined events that are stored in the meter’s event log when they occur and
restore. The events are arranged into different logical compartments with defined numbers of events logging. An
event is displayed with a description and a time stamp in M-Cubed. All the events will be displayed in following
categories in meter display as– voltage related, current related and events other than voltage & current related.
The events do not enforce any electrical value changes inside the meter such as running the meter on I
max
etc.
Events are logged if the condition for the detection of an event persists for a specified duration, known as the
persistence time. Events can have a different persistence time for occurrence and restoration as applicable. The
persistence time for an occurrence as well as for restoration is configurable at factory end for respective event
as applicable. However some events like power on/off, magnet will not have any restoration time because of the
nature and type of the event. Similarly some events can have the same condition of tamper detection as per the
nature and type of the event in a given circumstances.
The general events supported are as follows –
1. Phase-wise missing potential
2. Voltage unbalance
3. Invalid Voltage
4. Over Voltage
5. Under Voltage
6. Phase wise current circuit reversal
7. CT Miss
8. Current unbalance
9. Feeder Supply Fail
10. Power on/off
11. Front cover and ETBC Open detection in power on/off condition (applicable for Prometer 100-W)
There are other customised events like Neutral Disturbance (ND), Magnet immunity, CT open/ Bypass and
%THD for voltage and current are also supported in meter.