Schweitzer Engineering Laboratories SEL-700G1 - Figure 4.112 Synchronism-Check Voltage Window and Slip Frequency Elements

4.165
Date Code 20170814 Instruction Manual SEL-700G Relay
Protection and Logic Functions
Group Settings (SET Command)
Figure 4.112 Synchronism-Check Voltage Window and Slip Frequency Elements
q Figure 4.113
59VPY
59VSY
SFY
Relay
Word
Bits
25VLOY
Settings
25SF
Setting
BSYNCHY
SEL
OGIC
Setting
25VHIY
VPY
VS
Settings
Block Synchronism Check
VP Within
"Healthy Voltage" Window
VS Within
"Healthy Voltage" Window
Slip
Frequency
Calculator
Enable
2 CYC
to Angle Difference Calculator
Slip Frequency
Maximum Slip Frequency
Absolute Value
Slip
Frequency Element
SFY
(FNOM + 5) Hz
FREQY
(FNOM —5) Hz
VPY = 25RCFY *VPH
where VPH = VAY, VBY, VCY,
VABY, VBCY, or VCAY
depending on
the SYNCPY setting.
High Threshold
High Threshold
High Threshold
Low Threshold
Low Threshold
Low Threshold
0
25VDIFY
| (1—VPY/VS) | * 100
1
1
VDIFY (Relay Word)