10.8
SEL-400 Series Relays Instruction Manual Date Code 20171006
Testing, Troubleshooting, and Maintenance
Test Methods
Example: Testing the 50P1 Element With a Control Output
This procedure shows how to set control output OUT105 to test the SEL-451
50P1 Phase Instantaneous Overcurrent element.
For this test, you must have a computer with QuickSet for the relay, a variable
current source for relay testing, and a control output closure indicating device
such as a test set or a VOM (volt ohmmeter).
In this example, use QuickSet to configure the relay. You must have a computer
that is communicating with the relay and running QuickSet (see Making Settings
Changes in Initial Global Settings on page 3.20).
Step 1. Prepare to control the relay with QuickSet by establishing communi-
cation, checking passwords, and reading relay settings.
Step 2. Click the Outputs > Main Board branch of the QuickSet Settings
tree structure to view output settings (shown in Figure 10.2).
The Main Board Outputs dialog box appears.
Step 3. Set OUT105 to respond to the 50P1 element pickup.
a. Move the cursor to the OUT105 Main Board Output105
(SEL
OGIC) text box and double-click the left (regular) mouse
button.
b. Delete the NA default setting.
c. Type 50P1.
d. Press <Tab> or click in any other text box.
Figure 10.2 Setting Main Board Outputs: QuickSet
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