Technical Data - ABB RELION REX640 Technical Manual

Section 4
Protection functions
4.9.10
4.10
4.10.1
4.10.2
4.10.3
992

Technical data

Table 932: ARCSARC Technical data
Characteristic
Operation accuracy
Operate time TC
Operation mode =
"Light+current"
Operation mode =
"Light only"
Reset time
Reset ratio
Phase start value = 1.0 × I
1)
nominal frequency, results based on statistical distribution of 200 measurements
2) Includes the delay of the power output (PO) contact
3) Measured with static power output (SPO)
Motor start-up supervision STTPMSU
Identification
Function description
Motor start-up supervision
Function block
GUID-F0483D84-BC5D-44ED-90E7-F34C6294CB24 V1 EN
Figure 537: Function block
Functionality
The motor start-up supervision function STTPMSU is designed for protection against
excessive starting time and locked rotor conditions of the motor during starting. For
a good and reliable operation of the motor, the thermal stress during the motor starting
is maintained within the allowed limits.
Value
±3.0% of the set value or ±0.01 × I
Minimum
2)
9 ms
1)
3 ms 3)
2)
8 ms
2)
3 ms 3)
Typically 50 ms
Typically 0.96
, current before fault = 2.0 × set
n
IEC 61850
identification
STTPMSU
1MRS759142 C
n
Typical Maximum
2)
10 ms 13 ms
5 ms 3) 6 ms
2)
10 ms 13 ms
5 ms 3) 6 ms
Phase start value , f
= 50 Hz, fault with
n
IEC 60617 ANSI/IEEE C37.2
identification device number
Is2t n< 49,66,48,50TDL
R
Technical Manual
2)
3)
2)
3)
REX640