SEL-547 Distributed Generator Interconnection Relay

Description

Up for sale is gently pre-owned SEL-547 Distributed Generator Interconnection Relay (Utility-Grade Protection for Distributed Generation) by Schweitzer Engineering Laboratories.
Please review posted photographs and read below to verify cosmetic condition, learn about SEL-547 to verify that it will properly fit your application.
<-- Features and Benefits -->
<< Protection and Control Elements (ANSI Device Number) >>
• Four undervoltage elements (device number 27)
• Four overvoltage elements (device number 59)
• Four over-/underfrequency elements (device number 81)
• Directional power element (device number 32)
• Synchronism check element (device number 25)
<< Modbus and SEL Communications Interface >>
• Modbus communications protocol interfaces the SEL-547 to
outside communications networks.
• Integrate with SEL communications processors using SEL Fast
Meter and Fast Operate messages
<< Trip for System Problems—Supervise System Restoring >>
• Over-/undervoltage or over-/underfrequency elements operate
for local system islanding or system-wide voltage/frequency
disturbances.
• Directional power element operates for power export violations
or generator motoring.
• Synchronism check element detects healthy voltage, frequency,
and angle, and supervises breaker/switch closing
<<-- General Specifications -->>
AC Voltage Inputs (wye-connected): 208—480 VL-L nominal (120—277 VL-N nominal)
[additional input for synchronism check, 120—277 VL-N nominal]
AC Current Input: 5 A nominal
System Frequency and Phase Rotation: 50 or 60 Hz; ABC or ACB rotation
Optoisolated Inputs (three): Apply 6—32 Vdc whetting voltage
Power Supply: 6—32 Vdc input range; power consumption <10 W
Output Contacts (five plus one alarm):
6 A continuous carry @ 70°C; 4 A continuous carry @ 85°C
30 A make per IEEE C37.90; 8 ms pickup time
Serial Communications (300—19200 bps):
EIA-232 port (factory set: SEL ASCII protocol)
EIA-485 port (factory set: Modbus protocol)
Operating Temperature: —40° to +85°C (—40° to +185°F)
Weight: 2.55 pounds (1.16 kg)