ABB REU 513 User Manual page 56

Combined overvoltaqge and undervoltage relay
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REU 513
56
User's Guide
Table 46: Standard tests
Insulation tests
Dielectric tests
• Test voltage
Impulse voltage test
• Test voltage
Insulation resistance measurements
• Isolation resistance
Mechanical tests
• Vibration tests (sinusoidal)
• Shock and bump test
Table 47: Data communication
Front panel
• Optical RS-232 connection for opto-cable
• SPA-bus protocol
• 4.8 or 9.6 kbps
Auxiliary voltage
For its operation the relay requires a secured auxiliary voltage supply. The internal
power supply of the relay forms the voltages required by the relay electronics. The
power supply is a galvanically isolated (flyback-type) DC/DC converter. A green
READY LED on the front panel is lit when the power supply module is operating.
Input voltage ranges are:
• AC range 80...265 V ac, rated 110/120/220/240 V
• DC range 38...265 V dc, rated 48/60/110/125/220 V
The primary side of the power supply is protected with a fuse located on the PCB of
the relay. The fuse size is 2.5 A (slow).
ABB Substation Automation
Products and Systems
According to IEC 60255-5
2 kV, 50 Hz, 1 min
According to IEC 60255-5
5 kV, unipolar impulses, waveform 1.2/50 µs,
source energy 0.5 J
According to IEC 60255-5
> 100 MΩ, 500 V dc
According to IEC 60255-21-1 class I
According to IEC 60255-21-2 class I
1MRS750886-MUM

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