Newave 1000-3000VA, Руководство пользователя

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5.4 Overload Condition
The working principle of the UPS when overloading is illustrated as follows:
1. Generally modern day electronics & IT equipment generate an inrush current when switching
on. The amount of inrush current varies from equipment to equipment, some can be as high as
6 times its rated capacity while others produce negligible inrush. To prevent severe damage to
its Inverter cause by the inrush produce by the loads, the UPS is equipped with electronics
overload protection feature as standard. If the UPS loading is >105~120% of its capacity, it will
switch to bypass mode in 30 seconds to protect the Inverter. If overload condition is eliminated
by reducing the load to <105%, the UPS will switch back to Inverter mode automatically. If the
UPS is over 150% loading, it inverter will shutdown immediately.
2. The UPS Bypass loop is also equipped with overload protection. Its overload capacity is
illustrated by the graph & table below.
Fig 5.4 i-
L o a d ( % )
uo~iza
1 2 1 - Ш 131-135 136-145 146-143 149-157 158-176 177-1S7 1S8<
Delay Time
( S e t )
250 125 50 30
s
i
>
0.32 0.16
(Load %)
(sec)