9170700990 Rev D
BE1-60 Testing
5-1
SECTION 5
•
TESTING
OPERATIONAL TEST PROCEDURE
The following procedure verifies operation of the BE1-60 Voltage Balance Relay. Stated voltages refer to
line-to-neutral for single-phase and wye inputs, and line-to-line for delta inputs. Terminal numbers may be
found in Section 4,
Installation
. Target indicators, if present, should operate in conjunction with their
corresponding output.
1. Set the differential limit control to the “A” position.
2. Apply 120 Vac +0.1% to Circuit 1 and Circuit 2 inputs. After allowing conditions to stabilize, both
outputs should be in their normal states. If present, reset the target indicators.
3. Slowly increase the Circuit 1A input until the Circuit 2 output changes states. Circuit 1A input should
be between 125 and 127 Vac.
4. Decrease the Circuit 1A input to 120 Vac. Circuit 2 output should return to its normal state in
approximately 0.75 seconds. Reset the target indicator.
5. Set the differential limit control to the “K” position.
6. Slowly decrease the Circuit 1A input until the Circuit 1 output changes states. Circuit 1A input should
be between 57 and 63 Vac.
7. Increase the Circuit 1A input to 120 Vac. Circuit 1 output should return to its normal state in
approximately 0.75 seconds. Reset the target indicator.
8. For units with Sensing Input Types B, C, or D, repeat steps 3 through 7 accordingly for phase B and
C inputs.
9. For units with push-to-energize outputs, actuate pushbuttons. Observe output contacts.
Содержание BE1-60
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