Functions, Codes And Symbols - ABB REM610 Product Manual

Motor Protection
REM610
Product version: C

21. Functions, codes and symbols

Table 37. Functions included in REM610
Functionality
Protection
Three-phase thermal overload for motors
Motor startup based on thermal stress calculation
Three-phase definite-time overcurrent, low-set
stage
Three-phase overcurrent, high-set stage
Inverse-time unbalance protection based on
negative phase-sequence current
Phase reversal protection
Undercurrent (loss-of-load)
Non-directional earth fault, low-set stage
Cumulative startup time counter and restart inhibit
function
Circuit-breaker failure
Temperature protection using RTD sensors or
thermistors
Lockout relay function
Condition monitoring
Trip circuit supervision
Restart inhibit function
Measurement
Disturbance recorder
Residual current
Three-phase current
Thermal level
Negative phase-sequence current
Temperature measurements via RTD inputs
32
Issued: 30.10.2009
IEC 60617 IEC-ANSI
θ>
49M
2
I x t
48/14
s s
I >
51/14
s
I>> 50/51
I >
46
2
REV 46R
I< 37
I >
51N
0
Σtsi
66
CBFP 62BF
ThA>, ThB> 49/38
86
TCS TCS
RESTART
RESTART INHIBIT DISABLE
I I
0 n
L , L , L I , I
1 2 3 a
θ
TH LEVEL
I I
2 2
RTD1, RTD2, RTD1, RTD2,
RTD3, RTD4, RTD3, RTD4,
RTD5, RTD6 RTD5, RTD6
1MRS756304 C
, I
b c
ABB