Kikusui PAN 110-1.5A, Operation Manual

Page: 35 / 160

PAN-A 2-3
Chap
.2
Bef
ore Using the Unit
1
2.4.2 When a load generates a reverse current to the
power supply
The unit cannot absorb a reverse current from a regenerative load
such as an inverter, converter or transformer that supplies current to a
power supply. Consequently, the output voltage will increase and the
output will
fl uctuate.
As a remedy, connect a resistor R
D
as shown in Fig.2-3 to bypass the
reverse current. However, the amount of current to the load decreases
by Irp.
Fig.2-3 Remedy for regenerative load
• For the resistor R
D
, select a resistor of the rated
power (allowing suf fi cient margin). If a resister of
insuf fi cient rated power is used in the circuit, it may
burn out.
I
OUT
R
D
E
O
–
+
0
-I
O
+I
O
I
rp
R
D
[
Ω
]
≤
E
O
[V]
I
rp
[A]
R
D
:
Reverse current bypass
dummy load
E
O
:
Output voltage
I
rp
:
Max. reverse current
Equivalent circuit of the unit Regenerative load
Load
Output current waveform Reverse current
CAUTION