Manual Energy Storage Inverter ESI-S
Technical specifications 221
Power units can be master or slave type
Redundancy
For full redundancy combine master units of same rating.
If any unit in a master-master inverter system fails, the
other units can keep running.
For limited redundancy combine master with slave units of
the same rating.
If any slave unit in a master-slave inverter system fails, the
other units can keep running.
If the master in a master-slave inverter system fails, the
complete system stops running.
Harmonics that can be filtered
15 harmonics individually selectable in the range 2
nd
– 50
th
harmonic order if the neutral is connected.
20 harmonics individually selectable in the range 2
nd
– 50
th
harmonic order if the neutral is not connected.
Degree of filtered
Programmable per harmonic in absolute terms
filtered efficiency
Better than 97% of inverter rating typically
Reaction time
< 500 s
Response time
P and Q: 200-500 ms
40 ms typically (10% - 90% filtered)
Reactive power
Static/dynamic
Power factor programmable from 0.6 (inductive) to 0.6
(capacitive)
Load balancing
Off
Phase to phase, phase to neutral (if neutral present), both
(if neutral present)
Setting possibilities
Main and auxiliary settings functionality.
Three possible inverter modes that allow to set different
priorities
Start and stop settings
Local/remote control functionality.
Inverter standby functionality.
Auto restart after power outage functionality.
Digital inputs
2 multipurpose digital inputs on ESI-Manager.
Vlow: 0 Vdc, Vhigh: 15-24 Vdc, driving current: 13 mA@
24Vdc (Rint = 1.88 k
Ω
).
Can be used to implement remote control functionality,
start/stop buttons and switching between main and
auxiliary settings.
Digital outputs
6 multipurpose (NO) digital outputs on ESI-Manager.
Maximum continuous ac rating: 440 Vac/1.5 A
Maximum continuous dc rating: 110 Vdc/0.3 A
Common rating: 9A/terminal, totaling 18 A