MCA -Serie
FuG Elektronik GmbH, Am Eschengrund 11, D - 83135 Schechen
File: MCA Rev_3 Englisch.docx
Rev 3
4 von 16
2. General
The units of the series MCA (
M
edium
Voltage
C
hopper
A
utoranging
P
ower Supplies)
are high stable DC- power supplies..
High Voltage Output
ATTENTION The units supply dangerously HIGH VOLTAGE!
Polarity
At units up to
1500V
nominal voltage the
output is floating
. Either the positive or the
negative output pole may be connected to earth.
Units with
3000V
nominal voltage will be delivered with
positive or negative
polarity.
The polarity has been fixed in the factory and cannot be changed. One output terminal
carries high voltage, the other pole „0V“ is intern connected to earth via a wire link.
Output Isolation
At units
up to 400V
nominal voltage each output terminal may float up to
max. ±500V
,
Load and “0V” Terminal
at 750V
nominal voltage up to
max ± 1000V
and at 1500V
up to
max. ±2000V
with respect to earth.
Short-circuit Protection
All units are short-circuit proof. The maximum current can be supplied for all output
voltages, even into a short-circuit.
ATTENTION! During short-circuit or flash over, the internal filter-capacitors will
be discharged very fast. The output current is only limited by internal safety
resistors, and can reach 500 x the nominal value.
Load Types
The type of load is not critical. All passive bipolar loads can be connected.
Power Limitation
The maximum of supplied power is limited 750W / 1500W / 3000W.
Series Connection
A series connection is possible, paying attention to the stated output isolation. That
means, at a series connection of power supplies the sum voltage of both power
supplies may not exceed the mentioned value.
Parallel Connection
Parallel connection of power supplies with same output voltage is supported.
Type Number
From the type number you can see both the power class and the maximum output
voltage of the unit.
Example:
MCA 750 - 3 000
= Power class 750W / Nominal voltage 3 000V
Modified types with differing electrical or mechanical data are indicated by "MOD"
within the type number on the label at the rear panel.
(In this case pay attention to the description in section 8)
Serial Number
The label on the rear of the unit, the technical manual and the circuit diagrams show
the serial number.
It has the following content:
IMPORTANT
Please indicate on all further enquiries for warranty, service or spare parts
orders the serial number and the model number of the unit.
internal order number
Item number
Consecutive number out of this item
Serial No.:
AAAAA-PP-NN YYYY/MM
Delivery Year / Month
