ABB RELION 670 Series Technical Manual page 373

Generator protection
Hide thumbs Also See for RELION 670 Series:
Table of Contents

Advertisement

1MRK 502 066-UUS B
7.9.8
Technical data
Table 155: ZMFCPDIS (21) technical data
Function
Number of zones
Minimum operate current, Ph-
Ph and Ph-E
Positive sequence reactance
reach, Ph-E and Ph-Ph loop
Positive sequence resistance
reach, Ph-E and Ph-Ph loop
Zero sequence reactance
reach
Zero sequence resistive reach
Fault resistance reach, Ph-E
and Ph-Ph
Dynamic overreach
Definite time delay to trip, Ph-
E and Ph-Ph operation
Operate time
Reset time at 0.1 to 2 x Z
Reset ratio
7.10
Pole slip protection PSPPPAM (78)
7.10.1
Identification
Function description
Pole slip protection
7.10.2
Functionality
The phenomenon pole slip, also named out of step conditions, occurs when there is phase
opposition between different parts of a power system. This is often shown in a simplified way as
Technical manual
Range or value
3 selectable
directions, 3 fixed
directions
(5 - 6000)% of IBase
(30 - 3000) Ω/phase
(30 - 3000) Ω/phase
(100.00 - 9000.00)
Ω/p
(15.00 - 3000.00)
Ω/p
(1.00 - 9000.00) Ω/l
< 5% at 85 deg
measured with
CVT's and 0.5 < SIR
<30
(0.000 - 60.000) s
16 ms typically
Min = 20 ms
reach
Max = 35 ms
105% typically
IEC 61850
identification
PSPPPAM
Accuracy
-
±1.0% of I
r
" +- 2.0% static accuracy +- 2.0 deg static angular
accuracy Conditions: Voltage range: (0.1 - 1.1) x Ur
Current range: (0.5 - 30) x Ir Angle: At 0 deg and 85 deg"
±0.2% or ±35 ms whichever is greater
IEC 60255-121
-
-
IEC 60617
ANSI/IEEE C37.2
identification
device number
U
78
cos
Section 7
Impedance protection
GUID-16656307-6B43-47B5-8817-48638FFB5999 v3
SEMOD156709-1 v2
SEMOD158949-2 v4
SEMOD172086-4 v2
367

Advertisement

Table of Contents
loading

This manual is also suitable for:

Reg670

Table of Contents