9.26
SEL-700G Relay
Instruction Manual
Date Code 20170814
Analyzing Events
Event Reporting
Table 9.4 gives the ground event report digital column definitions for the
protection and control elements and the base model inputs and outputs.
Differential Event
Report (EVE DIFz
Command)
The differential event report includes:
➤
Differential analog quantities for 87-1, 87-2 and 87-3 differential
elements
➤
Digital states of differential and harmonic protection elements,
plus status of base model digital inputs and outputs
➤
Event summary
➤
Relay settings
Use the EVE DIFz n command to view the normal differential report (z = 1
for 87-1 element, z = 2 for 87-2 element and z = 3 for 87-3 element) with
4 samples/cycle for report n (if not listed, n is assumed to be 1). This
command is only available in models with the differential element.
Refer to the example event report in Figure 9.10 to view the differential event
report columns. This example event report displays rows of information each
¼ cycle. Retrieve this report with the EVE DIF1 command.
Table 9.5 gives the differential event report column definitions for the analog
quantities IOPz, IRTz, IzF2 and IzF5 for z = 1, 2 and 3. Table 9.6 gives the
differential event report digital column definitions for the protection and
control elements and the base model inputs and outputs.
Table 9.4
Stator Ground Event report (EVE GND) Digital Column Definitions
for Protection, Control, and I/O Elements
Column Designation
Column Symbols
Column Symbol RWBs
64G1
*
t
64G1 picked up
64G1T picked up
64G2
*
t
64G2 picked up
64G2T picked up
T64G
T
T64G picked up
N64G
N
N64G picked up
In12
1
2
b
IN101 picked up
IN102 picked up
Both IN101 and IN102 picked up
Out12
1
2
b
OUT101 picked up
OUT102 picked up
Both OUT101 and OUT102 picked up
Out3
*
OUT103 picked up
Table 9.5
Differential Event Report Column Definitions for Analog
Quantities
(Sheet 1 of 2)
Column
Heading
Description
IOP1
Operate current for differential element 87–1 (multiples of TAP)
IRT1
Restraint current for differential element 87–1 (multiples of TAP)
I1F2
Second-harmonic current for differential element 87–1 (multiples of TAP)
I1F4
Fourth-harmonic current for differential element 87–1 (multiples of TAP)
I1F5
Fifth-harmonic current for differential element 87–1 (multiples of TAP)
IOP2
Operate current for differential element 87–2 (multiples of TAP)
Содержание SEL-700G Series
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