ABB RER620 Technical Manual

Section 10 1MAC309294-MB F
General function block features
480 RER620
Technical Manual
10.2.1.2 Recloser inverse-time characteristics
For inverse-time operation, standard recloser inverse-time characteristics are supported.
The trip times for the curves are defined with the coefficients A, B and C.
The values of the coefficients can be calculated according to the formula:
(Equation 57)
t[s] Trip time in seconds
I measured current
I> set
Pickup value
kset Time multiplier
Table 422: Curve parameters for recloser curves
Curve name A B C D
Recloser 1 (102) Point to point data
Recloser 2 (135) 11.4161 0.488986 1.84911 0.239257
Recloser 3 (140) 13.5457 0.992904 1.76391 0.379882
Recloser 4 (106) Point to point data
Recloser 5 (114) Point to point data
Recloser 6 (136) Point to point data
Recloser 7 (152) Point to point data
Recloser 8 (113) 1.68546 0.158114 1.78873 0.436523
Recloser 8+ (111) 1.42732 -0.003704 1.70112 0.366699
Recloser 8* 1.42302 -0.007846 1.42529 0.442626
Recloser 9 (131) 2.75978 5.10647 1.0353 0.614258
Recloser 11 (141) 21.6149 10.6768 2.69489 -0.67185
Recloser 13 (142) Point to point data
Recloser 14 (119) Point to point data
Recloser 15 (112) Point to point data
Recloser 16 (139) Point to point data
Recloser 17 (103) Point to point data
Recloser 18 (151) Point to point data
Recloser A (101) Point to point data
Recloser B (117) 4.22886 0.008933 1.7822 0.319885
Recloser C (133) 8.76047 0.029977 1.80788 0.380004
Recloser D (116) 5.23168 0.000462 2.17125 0.17205
Recloser E (132) 10.7656 0.004284 2.18261 0.249969
Recloser F (163) Point to point data
Recloser G (121) Point to point data
ts
A
I
I>
------


C
D–
-------------------------
B+





k=

ABB RER620 Specifications

General

Brand	ABB
Model	RER620
Category	Controller
Language	English