ABB RET670 Product Guide

Table 53. Directional overpower protection GOPPDOP
Function Range or value Accuracy
Power level
for Step 1 and Step 2
(0.0–500.0)% of SBase ±1.0% of S
r
at S ≤ S
r
±1.0% of S at S > S
r
Characteristic angle
for Step 1 and Step 2
(-180.0–180.0) degrees ±2.0 degrees
Operate time, start at 0.5 to 2 x S
r
and k = 0.000 Min. =10 ms
Max. = 25 ms
Reset time, start at 2 to 0.5 x S
r
and k = 0.000 Min. = 35 ms
Max. = 55 ms
Independent time delay to operate for Step 1
and Step 2 at 0.5 to 2 x S
r
and k = 0.000
(0.01-6000.00) s ±0.2% or ±40 ms whichever is greater
Table 54. Broken conductor check BRCPTOC
Function
Range or value Accuracy
Minimum phase current for operation (5–100)% of IBase ±1.0% of I
r
Unbalance current operation (50–90)% of maximum current ±1.0% of I
r
Independent operate time delay (0.000-60.000) s ±0.2% or ±45 ms whichever is greater
Independent reset time delay (0.010-60.000) s ±0.2% or ±30 ms whichever is greater
Start time at current change from I
r
to 0 Min. = 25 ms
Max. = 35 ms
-
Reset time at current change from 0 to I
r
Min. = 5 ms
Max. = 20 ms
-
Transformer protection RET670 2.0
1MRK 504 141-BEN C
Product version: 2.0
ABB 69

ABB RET670 Specifications

General

Rated Frequency	50/60 Hz
Inputs	Analog and binary inputs
Application	Protection of power systems
Communication Protocols	IEC 61850, DNP3, Modbus
Operating Temperature Range	-25°C to +55°C
Mounting	Rack mounted
Number of Binary Inputs	Up to 48
Number of Binary Outputs	32
Protection Functions	Overcurrent Protection
Outputs	Binary outputs
Enclosure	IP 54
Type	Line Differential Protection
Number of Analog Inputs	24