3.3 Commissioning
436
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
Figure 3-39
Polarity testing for
I
N
, example with current transformers configured in a
Holmgreen-connection (VTs Wye-connected)
3.3.13 Checking the Temperature Measurement via RTD-Box
After the termination of the RS485 port and the setting of the bus address have been
verified according to Section 3.2, the measured temperature values and thresholds
can be checked.
If temperature sensors are used with 2-phase connection you must first determine the
line resistance for the temperature detector being short-circuited. Select mode 6 at the
RTD-Box and enter the resistance value you have determined for the corresponding
sensor (range: 0 to 50.6
Ω
).
When using the preset 3-phase connection for the temperature detectors no further
entry must be made.
For checking the measured temperature values, the temperature detectors are re-
placed by adjustable resistors (e.g. precision resistance decade) and the correct as-
signment of the resistance value and the displayed temperature for 2 or 3 temperature
values from the following table are verified.
Table 3-37
Assignment of the resistance value and the temperature of the sensors
Temperature in
°
C
Temperature in
°
F
Ni 100 DIN 43760 Ni 120 DIN 34760 Pt 100 IEC 60751
–50
–58
74.255 89.106 80.3062819
–40
–40
79.1311726 94.9574071 84.270652
–30
–22
84.1457706 100.974925 88.2216568
–20
–4
89.2964487 107.155738 92.1598984
–10
14
94.581528 113.497834
96.085879
0
32
100
120
100
10
50
105.551528 126.661834 103.902525
20
68
111.236449 133.483738 107.7935
Содержание siprotec SJ62
Страница 3: ...3 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 9: ...Preface 9 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 21: ...Contents 19 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 35: ...1 Introduction 33 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 365: ...2 Functions 363 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 443: ...3 Mounting and Commissioning 441 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 529: ...4 Technical Data 527 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 699: ...A Appendix 697 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 701: ...Literature 699 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 714: ...Index 712 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...
Страница 715: ...Index 713 SIPROTEC 4 7SJ62 63 64 Handbuch C53000 G1140 C147 A Edition 07 2015 ...