Areva MiCOM P441, Technical Manual

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P44x/EN TD/E33 Technical Data
Page 12/30 MiCOM P441/P442 & P444
3.4 Influencing Quantities
No additional errors will be incurred for any of the following influencing quantities:
Quantity Operative range (typical only)
Environmental
Temperature
-25
°
C to +55
°
C
Mechanical (Vibration, Shock, Bump,
Seismic) According to
IEC 60255-21-1:1988
IEC 60255-21-2:1988
IEC 60255-21-3:1995
Quantity Operative range
Electrical
Frequency 45 Hz to 65 Hz
Harmonics (single) 5% over the range 2nd to 17th
Auxiliary voltage range 0.8 LV to 1.2 HV (dc)
0.8 LV to 1.1 HV (ac)
Aux. supply ripple 12% Vn with a frequency of 2.fn
Point on wave of fault waveform
0 - 360
°
DC offset of fault waveform No offset to fully offset
Phase angle
-90
°
to + 90
°
Magnetising inrush No operation with OC elements set to 35% of
peak anticipated inrush level.
3.5 High Voltage Withstand IEC60255-5:1977
3.5.1 Dielectric Withstand
2.0kVrms for one minute between all terminals and case earth.
2.0kVrms for one minute between all terminals of each independent circuit grouped together
and all other terminals. This includes the output contacts and loop through connections
D17/D18 and E17/E18.
1.5kVrms for one minute across dedicated normally open contacts of output relays.
1.0kVrms for 1 minute across normally open contacts of changeover pairs and watchdog
outputs.
3.5.2 Impulse
The product will withstand without damage impulses of 5kV peak, 1.2/50
µ
s, 0.5J across:
Each independent circuit and the case with the terminals of each independent circuit
connected together.
Independent circuits with the terminals of each independent circuit connected together.
Terminals of the same circuit except normally open metallic contacts.
3.5.3 Insulation Resistance
The insulation resistance is greater than 100 M
Ω
at 500Vdc.