VAMP 259 - Voltage Sag & Swell; Voltage Interruptions

Technical description
9 Technical data
9.4 Supporting functions
VM259.EN007
VAMP 24h support phone +358 (0)20 753 3264
293
9.4.4. Voltage sag & swell
Voltage sag limit
10 – 120 %
Voltage swell limit
20 – 150 %
Definite time function:
DT
- Operating time
0.08 – 1.00 s (step 0.02 s)
Low voltage blocking
0 – 50 %
Reset time
<60 ms
Reset ration:
- Sag
1.03
- Swell
0.97
Block limit
0.5 V or 1.03 (3 %)
Inaccuracy:
- Activation
±0.5 V or 3% of the set value
- Activation (block limit)
±5% of the set value
- Operating time at definite time function
±1% or ±30 ms
If one of the phase voltages is below sag limit and above block limit but another phase voltage
drops below block limit, blocking is disabled.
9.4.5. Voltage interruptions
Voltage low limit (U1)
10 – 120 %
Definite time function:
DT
- Operating time
<60 ms (Fixed)
Reset time
<60 ms
Reset ratio:
1.03
Inaccuracy:
- Activation
3% of the set value