- The COMPANO 100 test set can output life-hazardous voltages and currents.
- Before operating any such electrical equipment, carefully read the Safety Instructions chapter in this manual (see Safety instructions).
| WARNING | ||
| Death or severe injury can occur if the appropriate safety instructions are not observed.
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Voltage relays trip when the monitored voltage considerably deviates from the nominal voltage. To test such a voltage relay, use output V OUT with a pulse ramp.
Configuration:
Turn off the output I OUT by first pressing the I OUT key, and then by pressing the "Off" soft key.
Voltage output V OUT is configured to be AC by default.
Configure input IN 1 to be a binary input to connect dry (potential-free) or wet contacts (carrying potential when closed), depending on the relay's contact.
Connect voltage output V OUT to the voltage input of the relay, and IN 1 to the trip contact of the relay.
Running the test:
In FLEX, as a first sequence step, configure V OUT to nominal voltage at nominal frequency, set the timeout to 5 seconds and the trigger to "Off".
Then add a second state.
This state is exclusively used to determine the start value for the first pulse of the pulse ramp.
Set the voltage in this state to the over- or undervoltage value that you would like to have for the first pulse.
Set the timeout to 1 ms. The first pulse will be 1 ms longer but this does generally not affect the result.
Add a third state.
Configure the transition from sequence step 2 to sequence step 3 as ramp with V OUT as value to be pulse-ramped.
Set the pulse duration long enough for the relay to be able to trip once the pickup voltage is reached.
Configure the third sequence step with the target voltage, i.e., the voltage that should make the relay trip in any case. Set the trigger to IN 1.
Start the test.
The result will show the voltage where the trip occurred in sequence step 3.