GE DGP Series, Instruction Manual

Page: 115 / 278

GE Power Management DGP Digital Generator Protection System 4-
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4 ACCEPTANCE TESTS 4.6 GENERAL RELAY TESTS
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4.6.3 T2: DIGITAL OUTPUT TESTS
This test checks all relay outputs. It is a convenient way to determine proper system connections and verify the
operation of all relay contacts without having to apply currents and voltages to simulate faults.
If GE-Link is used to perform this test, none of the outputs will operate unless Jumper J1 on
the MMI module is removed. Refer to Figure 3–4: DGP MMI MODULE on page 3–5.
1. Connect the relay as shown in Figure 4–3: DIGITAL OUTPUT TEST CONNECTIONS.
2. Enter the Control Level password.
3. Press the [ACT] key and then select DIG OUT TEST. Press the [ENT] key.
4. Select the output to test by using the arrow keys to scroll to the desired output, such as 94G, and press the
[ENT] key.
After all tests are done you must end this test mode using step 6.
Before the contact is allowed to close you will be prompted to turn protection off during the test. The
prompt is: DISABLE PROT?. Press the [1/Y] key followed by the [ENT] key to turn protection off. Protec-
tion will remain off until the test mode is ended.
Once the protection choice is chosen, the selected relay output will close.
Using an ohmmeter or other suitable device, verify that the output under test has closed.
5. After the output is tested, scroll to the next output to test and press the [ENT] key. This output will close and
the previously selected output will open. Continue in this fashion until all outputs are tested.
6. End the test mode by scrolling to the END TEST MODE item and press the [ENT] key. Alternatively, the
[END] [ENT] key sequence can be entered to end the test and re-enable protection.
NOTE
NOTE