Sepam™ Substation Applications
Sepam Substation / Feeder Applications
 S84 |
Substation/Feeder advanced protection is covered with the Sepam S84 and covers current, voltage, frequency, and synchro check protection functions.
Advanced Protection Relay S84
Typical Catalog Number: SQ1S84P1J5A0B0 Series 80 - Substation/Feeder Protection S84 (24-250Vdc), mimicBus Graphical Display, 1/5A CT inputs, 14In/11Out Digital Module (110-125Vdc/mid p.u.), 2 x RJ-45 ports (Modbus or IEC61850 with GOOSE), ladder logic firmware (PLC base).
Features
|
Feature |
Advanced Protection Relay S84 Sepam 80 Series |
|
|---|---|---|
|
Current Protection |
● |
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Built in CB Control |
● |
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Native Zone Selective Interlocking |
● |
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Waveform Captures |
● |
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Event Records |
● |
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Voltage Protection |
● |
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Frequency Protection |
● |
|
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Field Expandable Communications |
● |
|
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Synchro-check Protection (optional) |
● |
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Native Automatic Throw over Scheme |
● |
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Field expandable I/O |
● |
|
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Ladder Logic PLC custom programming (optional) |
● |
|
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Mimic-bus graphical display (optional) |
● |
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Onboard data logging |
● |
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Communications options |
Modbus RTU |
● |
|
DPN |
● |
|
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Modbus TCP/IP |
● |
|
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IEC61850–MMS |
● |
|
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IEC61850–MMS + GOOSE |
● |
|
Functions
|
ANSI Device Number |
Description |
Advanced Protection Relay S84 Sepam 80 Series |
|---|---|---|
|
25 |
Synch Check |
● |
|
27 |
Phase-to-phase undervoltage |
● |
|
27D |
Positive sequence undervoltage |
● |
|
27R |
Remnant undervoltage |
● |
|
27S |
Phase-to-neutral undervoltage |
● |
|
32P |
Directional Power |
● |
|
37 |
Phase Undercurrent |
● |
|
46 |
Negative Sequence Current/Unbalance |
● |
|
47 |
Negative Sequence undervoltage |
● |
|
49 |
Thermal Overload |
● |
|
50 |
Instantaneous Phase Overcurrent |
● |
|
50BF |
Breaker Failure |
● |
|
50G |
Instantaneous Ground Overcurrent (Measured) |
● |
|
50N |
Instantaneous Ground Overcurrent (Calculated) |
● |
|
51 |
Time Phase Overcurrent |
● |
|
51G |
Time Ground Overcurrent(Measured) |
● |
|
51N |
Time Ground Overcurrent(Calculated) |
● |
|
59 |
Phase-to-phase overvoltage |
● |
|
59N |
Neutral Voltage Displacement |
● |
|
67 |
Directional Phase Overcurrent |
● |
|
67N |
Directional Ground Overcurrent |
● |
|
79 |
Reclosing |
● |
|
81H |
Overfrequency |
● |
|
81L |
Underfrequency |
● |
|
81R |
Rate of Change of Frequency |
● |