ABB Relion RES670, Technical Manual

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Function or quantity Trip and Signal relays
Current carrying capacity
Per relay, continuous
Per relay, 1 s
Per process connector pin, continuous
8 A
10 A
12 A
Making capacity at inductive load with L/R > 10 ms
0.2 s
1.0 s
30 A
10 A
Breaking capacity for AC, cos
j
> 0.4 250 V/8.0 A
Breaking capacity for DC with L/R < 40 ms 48 V/1 A
110 V/0.4 A
125 V/0.35 A
220 V/0.2 A
250 V/0.15 A
Maximum 72 outputs may be activated simultaneously with influencing
factors within nominal range. After 6 ms an additional 24 outputs may
be activated. The activation time for the 96 outputs must not exceed
200 ms. 48 outputs can be activated during 1 s. Continued activation is
possible with respect to current consumption but after 5 minutes the
temperature rise will adversely affect the hardware life. Maximum two
relays per BOM/IOM/SOM should be activated continuously due to
power dissipation.
23.2.9 Static binary output module (SOM)
SEMOD174197-1 v1
23.2.9.1 Introduction
SEMOD174196-4 v4
The static binary output module has six fast static outputs and six change over output
relays for use in applications with high speed requirements.
23.2.9.2 Design
SEMOD175385-4 v4
The Static output module (SOM) have 6 normally open (NO) static outputs and 6
electromechanical relay outputs with change over contacts.
The SOM consists mainly of:
• An MCU
• A CAN-driver
• 6 static relays outputs
• 6 electromechanical relay outputs
• A DC/DC converter
• Connectors interfacing
1MRK 511 408-UUS A
Section 23
IED hardware
Phasor measurement unit RES670 2.2 ANSI 827
Technical manual