Brusa NLG664-U0, Техническая информация и пуск в эксплуатацию

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Technical information
and start-up
Fast Charger NLG6xx
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6.4.1 Voltage-dependent control of 1-phase and 3-phase charging
The NLG6 enables 3-phase charging for battery voltage of
≥ 310 V to ≤ 430 V at max. 22kW. Outside this
range, single-phase-charging is performed at max. 7kW. A hysteresis is programmed for this switchover
threshold defining the following switchover point:
If the battery voltage is < 310 V when switching on the charger, 1-phase charging is automatically activated.
Subsequently, the charger automatically switches to 3-phase charging if the battery voltage reaches
≥ 316 V
(hysteresis-dependent switchover threshold). If the battery voltage is
≥ 310 V when switching on the charger,
3-phase charging is automatically activated.
6.4.2 PFC compensation
To optimize the power factor of the charger, a mains-synchronized current control system was implemented.
It is controlled by means of PFC topology (Power Factor Correction) as well as active control of current
drawn from mains according to the momentary mains voltage.
6.4.3 PRC compensation
Sophisticated switching technology enables 1-phase operation with low power ripple at the output without the
need for large electrolytic capacitors. In 3-phase operation, this is achieved naturally by the continuous
energy flow from the AC side provided by a 3-phase system.