Measurements and settings
51
TemBreak
PRO
P_SE-UM-001-EN
– V1.2.0
Accuracy of Measurements
The measurement accuracies of the P_SE OCR complies with the requirements of standard IEC 61557-12 Edition 1:
-
Class 0.2 for measuring frequency,
-
Class 0.5 for measuring voltages,
-
Class 1 for measuring current,
-
Class 2 for measuring active energy / power.
The accuracy of each measurement is defined, in accordance with IEC 61557-12 Ed 1, for a supply within the rated ambient temperature range of the
MCCB (-25°C...+70°C).
Variables
Symbols
Measurement range for accuracy
class
IEC 61557-12 Accuracy
Class
RMS and min./max. currents
I
1
, I
2
, I
3
, I
N
, I
avg
, I
max
, I
min
, ...
0.2...1.2 x I
n
Class 1
Ground / Earth current
I
g
0.2 ... 1.2 x I
n
Class 1
Current imbalance
I
1 Unb
, I
2 Unb
, I
3 Unb
, I
N Unb,
I
max Unb
─
─
Ph-Ph RMS and min./max. voltages U
12
, U
23
, U
31
, U
avg
, U
max
, U
min
12
0…
690 V
Class 0.5
Ph-N RMS and min./max. voltages V
1N
, V
2N
, V
3N
, V
avg
, V
max
, V
min
70
…
440V
Class 0.5
Voltage imbalance
U
12 Unb
, U
23 Unb
, U
31 Unb
, U
max Unb
,
V
1N Unb
, V
2N Unb
, V
3N Unb
, V
max Unb
0.8...1.2 x V
n
─
Frequency
f
45
…
65 Hz
Class 0.2
Power
P
1
, P
2
, P
3
, P
tot
Q
1
, Q
2
, Q
3
, Q
tot
S
1
, S
2
, S
3
, S
tot
0.05
…
1.2 x I
n
Class 2
Energy
E
a In
, E
a Out
, E
a Abs
, E
a net
E
r In
, E
r Out
, E
r Abs
, E
r net
E
s net
0.05...1.2 x I
n
Class 2
Average powers over interval
(Demand powers)
P
1 Dmd
, P
2 Dmd
, P
3 Dmd
, P
tot Dmd
Q
1 Dmd
, Q
2 Dmd
, Q
3 Dmd
, Q
tot Dmd
S
1 Dmd
, S
2 Dmd
, S
3 Dmd
, S
tot Dmd
0.05...1.2 x I
n
─
Average currents over interval
(Demand currents)
I
1 Dmd
, I
2 Dmd
, I
3 Dmd
, I
N Dmd
, I
avg Dmd,
I
1 Dmd max
, I
2 Dmd max
, I
3 Dmd max
; I
N Dmd max
0.2...1.2 x I
n
─
Power factors
PF
1
, PF
2
, PF
3
, PF
tot
,
Cosφ
1
, Cosφ
2
,
Cosφ
3
, Cosφ
tot
Capacitive (current leading)
0.5
…1
Inductive (current lagging)
0.8
…1
─
THD voltage
THD
U12,
THD
U23,
THD
U31
THD
V1N,
THD
V2N,
THD
V3N
0...20%
Class 2
THD current
THD
I1,
THD
I2,
THD
I3,
THD
Imax
0...200%
Class 2
Summary of Contents for Terasaki TemBreak PRO P SE Series
Page 106: ...106 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex A Dimensions P160 Dimensions...
Page 107: ...Annex A Dimensions 107 TemBreak PRO P_SE UM 001 EN V1 2 0 P250 Dimensions...
Page 108: ...Annex A Dimensions 108 TemBreak PRO P_SE UM 001 EN V1 2 0 P400 Dimensions...
Page 109: ...Annex A Dimensions 109 TemBreak PRO P_SE UM 001 EN V1 2 0 P630 Dimensions...
Page 111: ...111 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex C I2t Let Through Curves P160_SE...
Page 112: ...Annex C I2t Let Through Curves 112 TemBreak PRO P_SE UM 001 EN V1 2 0 P250_SE...
Page 113: ...Annex C I2t Let Through Curves 113 TemBreak PRO P_SE UM 001 EN V1 2 0 P400_SE...
Page 114: ...Annex C I2t Let Through Curves 114 TemBreak PRO P_SE UM 001 EN V1 2 0 P630_SE...
Page 115: ...115 TemBreak PRO P_SE UM 001 EN V1 2 0 Annex D Peak Let Through Curves P160_SE...
Page 116: ...116 TemBreak PRO P_SE UM 001 EN V1 2 0 P250_SE...
Page 117: ...117 TemBreak PRO P_SE UM 001 EN V1 2 0 P400_SE...
Page 118: ...118 TemBreak PRO P_SE UM 001 EN V1 2 0 P630_SE...
Page 121: ...121 TemBreak PRO P_SE UM 001 EN V1 2 0 This page is intentionally left blank...
