Features:
Controlled by CPU,stability is reliableAble to follow up utility grid in milliseconds, complete synchronous with utility gridWhen utility grid tested by inverter in 3 seconds is normal, the inverter starts to work making sure the inverter won’t be damaged by frequency waveIt will lock the unit automatically in less than 10ms when utility grid interrupted, over-voltage or under-voltageWhen wind power over-voltage or solar intensity over strong with DC over voltage, inverter will automatically lock itself. When DC restores, inverter will start to work automatically againWhen wind power or solar power shortage, DC voltage drop, grid-connected inverter output power will reduce. When DC over low achieve inverter Dc protect point, inverter will automatically lock and stop work, when DC restores, it will start the unit automatically again.Protection against short-circuit and overloadOutput power is invariableness(normal DC voltage)DC to AC high transfer efficiency up to 90---96%Specifications:
Model | NB-S,NB-W Series |
Power range | 1KW-10KW |
DC voltage range | 48V---350V |
Total Current waveform aberrance rate(THD) | ≤3% |
Power factor | >0.99 |
DC to AC transfer efficiency | 90~96% |
Allowable electric net voltage range(AC) | 175V~265V(single phase) |
304V~450V(three phases) | |
Allowable electric net frequency range | 50/60Hz |
DC access type | Group terminal block+DC swithch |
AC access type | Group terminal block+AC swithch |
Night power expenditure | 0W |
Communication ports | RS232,RS485,USB(optional) |
Protections | Protection against short-circuit,reverse |
Polarity protection,lone-island domino | |
effect protection,protection against over- | |
load,grounding protection | |
Operational environment temperature | -10°C~+40°C |
Electric net control | According to UL1741,IEEE-2000 standards |
Electromagnetism compatibleness | EN50081,PART1 EN50082,PART1 |
Electromagnetism compatibleness | EN61000-3-2 |
Utility grid test | DIN VDE126 |
solar inverter