M-3520 Instruction Book
6–28
59 Overvoltage, 3-Phase (#1 or #2)
VOLTAGE INPUTS:
Configuration V1
CURRENT INPUTS:
None
TEST SETTINGS:
Pickup
P
Volts
(5 to 180)
Time Delay
D
Cycles
(1 to 8160)
Programmed Outputs
Z
Output
(1 to 8)
Functions 60FL , 79
Disable
Function 59 #1 or #2
Disable
■
■
■
■
■
NOTE
: If 59 #1 and 59 #2 have different pickup settings, it would be efficient to disable the one with the
lower setting first and test the higher setting operation, since the lower setting operation could then
be tested without disabling the higher setting.
1.
Disable functions as shown. Refer to Section 3.2, Configure Relay Data, for procedure.
2.
Confirm settings to be tested.
3.
Connect inputs in Configuration V1 designated above. Refer to Section 6.1, Equipment/Test Setup
for configuration. Set Voltages to Nominal voltage
4.
Pickup Test
: Hold the
TARGET RESET
button in and slowly increase the input voltage on phase A
until
59 PHASE OVERVOLTAGE
LED light goes on, or the pickup indicator operates on the
computer target screen. The level should be equal to
P
volts
&
0.5 V or 5%. Release the
TARGET
RESET
button and decrease the input voltages to nominal voltage and the
OUTPUT
LEDs will go
out. Press
TARGET RESET
button to remove targets.
5.
Time Test
: With output contacts being connected to the timer, apply (
P
+1) Volts on phase A and
start timing. The contacts will close after
D
cycles within –1 to +3 cycles or
&
1%.
6.
If testing is complete, enable any functions disabled for this test. If other tests are to be completed,
check the proper functions to disable for the next test and proceed from this point.
* When both RMS and Line-to-Ground to Line-to-Line is selected, the accuracy is
&
0.8 V or
&
.75%.
Summary of Contents for M-3520
Page 1: ...Instruction Book M 3520 Intertie Protection Relay ...
Page 83: ...2 50 M 3520 Instruction Book This Page Left Intentionally Blank ...
Page 95: ...M 3520 Instruction Book 3 12 This Page Intentionally Left Blank ...
Page 133: ...M 3520 Instruction Book 5 12 This Page Intentionally Left Blank ...
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Page 213: ...D 12 M 3520 Instruction Book This Page Intentionally Left Blank ...