Tait T809-10, Руководство по обслуживанию

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MBZ-00001-01
Functional Testing 33
Copyright © 2004 Tait Electronics Ltd November 2004
4 Functional Testing
The following test procedures will confirm that the T809-10 has been set up and
adjusted correctly and is fully operational. For the test equipment refer to the diagram
below:
Figure 4.1 Test equipment setup
4.1 Basic Operation
To confirm the basic operation of the power supply:
1 Ensure that the mains supply to the T809-10 is switched OFF.
2 Set up the test equipment as shown in Figure 4.1 above.
3 Set the DC output load to maximum resistance/minimum current.
4 Connect the T809-10 to the mains supply and switch it on. The power switch
and the ON LED should be illuminated.
5
Vary the DC load and check that the output voltage and current are within
the specifications (refer to Section 1.2.4).
4.2 Output Current Overload
To confirm the operation of the current overload protection circuitry:
1 Ensure that the mains supply to the T809-10 is switched OFF.
2 Set up the test equipment as shown in Figure 4.1 above.
V A _ _*
+
-
V A _ _
Mains supply
Earth leakage
Circuit breaker
Isolating
transformer
1kVA Variac
0 to 260V
AC
1kVA
AC
Input
Output
Oscilloscope
T809 PSU
Variable
DC load