Increasing the Output Power, Operating Modes
65
7INCREASING THE OUTPUT POWER,
OPERATING MODES
The CMC 353 has a very large application diversity. The current outputs
offer enough output power to test almost all electromechanical relays.
The CMC 353 offers a variety of single-phase operation with which the
output power from the units can be significantly increased.
In cases when the current or the output power - or even the number of
independent voltages or currents - is insufficient, it is possible to switch
individual amplifier groups of the CMC 353 in parallel or to connect external
amplifiers (up to six independent additional channels) to the "LL out 1-6".
The operating modes illustrated in the following sections can be set in the
Hardware Configuration of the OMICRON Test Universe software.
7.1 Safety Instructions for High Current Output
Observe the following safety instructions when using the operating modes
and connection methods described in this chapter.
• For currents greater than 25 A, the test object (load) should be
exclusively connected to the 4 mm/0.16 " banana sockets and not to the
generator combination socket.
• Since a current of 32 A flowing through a test lead (2 m/6 ft. legth,
2.5 mm
2
) causes a loss of 15 ... 18 W, we recommend to use the
connection methods shown in this chapter.
• When connecting current outputs in parallel, it has to be ensured that the
test leads are only connected together immediately at the test object and
that the test leads have sufficient diameter.
• At maximum amplitude of the 64 A mode, the cable losses can amount
to 66 W for AC and 140 W for DC operation.
• For applications drawing DC current: The test object (load) should be
exclusively non-inductive! Note that a load of, for example, 1 Henry can
store 50 J (Joule) at 10 A DC for a long period of time. Electrical shocks
with more than 350 mJ can be life-hazardous for the user.
To Next Page
Loading...
Need help?
General
