Schweitzer Engineering Laboratories SEL-487V - Synchrophasors and Auxiliary Controls; Functional Overview and Protection Types; Protection Element Overview

Schweitzer Engineering Laboratories, Inc. SEL-487V Data Sheet
3
➤
Configurable Synchrophasor Data Streams. The
relay supports up to five unique synchrophasor
data streams over Ethernet. Each data stream shall
provide selectable voltage and current quantities
with configurable data labels.
➤ Auxiliary Trip/Close Pushbuttons. These
optional pushbuttons are electrically isolated from
the rest of the relay. They function independently
from the relay and do not need relay power.
➤ Directional Elements. Phase and ground direc-
tional elements shall be provided with voltage
polarization.
Functional Overview
Figure 1 Functional Diagram
Table 1 Protection Elements (Sheet 1 of 2)
Element ANSI Number Description Quantity
27 Undervoltage 6
32 Directional Power 10
46 Current Unbalance 1
50 Instantaneous Overcurrent 3 Phase, 3 Negative-Sequence, 3 Ground
50BF Breaker Failure 1
51S Selectable Time Overcurrent 10
59 Overvoltage 6
60N Neutral-Current Unbalance 3
60P Phase-Current Unbalance 3
87V Voltage Differential 3
87VN Neutral-Voltage Differential 3
LOP Loss of Potential 2
ANSI NUMBERS/ACRONYMS AND FUNCTIONS
27P
27 (P, Q, B)
32 (P, G)
37C
46P
49
50BF
50FO
50 (P, G, Q)
51 (P, G, Q)
59 (P, G, B)
60
60N
60P
67 (P, G, Q)
81 (O, U, R)
85 RIO
87V
87VN
DFR
HMI
LGC
MET
PMU
RTU
SER
ADDITIONAL FUNCTIONS
BRM
LDP
1
Copper or Fiber Optic * Optional Feature
Phase Undervoltage
Undervoltage (Phase, Neg. Seq., Bank)
Real and Reactive Power (Phase, Ground)
Undercurrent
Phase Current Unbalance
Programmable Thermal Control and Logic
Breaker Failure Overcurrent
Flashover Overcurrent
Overcurrent (Phase, Ground, Neg. Seq.)
Time-Overcurrent (Phase, Ground, Neg. Seq.)
Overvoltage (Phase, Neg. Seq., Bank)
Loss-of-Potential
Neutral Current Unbalance
Phase Current Unbalance
Directional Overcurrent (Phase, Ground, Neg. Seq.)
Frequency (Over, Under, Rate)
SEL M
IRRORED BITS Communications
Tapped Current Differential
Neutral Voltage Differential
Event Reports
Operator Interface
Capacitor Bank Control*
High-Accuracy Metering
Synchrophasors
Remote Terminal Unit
Sequential Events Recorder
Breaker Wear Monitor
Load Data Profiling*
1
1
3
31
SEL-2600
SEL-2800
ENV
52
3
49
60N 60P
87V
46
27
87VN
50FO
27
50
P
G
Q
81
O
U
R
59
P
Q
T
59
P
Q
B
51
67
P
G
Q
BRM
DFR HMI MET PMU
RTU
LOP
50BF
85
RIO
SER
4
EIA- 232
2
Ethernet
1
*
1
IRIG-B
SEL-487V
32
LGC
37C