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Startup
7.7 Applying the measuring current
SENTRON PAC3200
Manual, 02/2008, A5E01168664B-04
101
7.7
Applying the measuring current
The device is designed for connection of current transformers with secondary currents of 1 A
and 5 A. It is only possible to measure alternating currents.
The current measuring inputs can each be loaded with 10 A (max. 300 V) continuously or
with 100 A for 1 second.
DANGER
Short-circuiting secondary connections of the current transformers
Will cause death, serious injury or considerable property damage.
Electric shock and danger of arcing in the case of open transformer circuits
It is only possible to measure the current with current transformers. The circuits must NOT
be protected with a fuse here! Never open the secondary circuit of the current transformers
under load. Short-circuit the secondary current terminals of the current transformer before
removing the device. The safety information for the current transformers used must be
followed!
CAUTION
Do not measure direct currents
Direct currents cannot be measured with the device.
Direction of current flow
Please take account of the direction of current flow when connecting the current measuring
inputs. With inverse connection, the measured values are inverted and receive a negative
sign.
To correct the direction of current flow, it is not necessary to reverse the input terminals.
Instead, change the interpretation of the direction in the device settings.
You can find more information in the chapter "Parameterizing", "INVERTED CURRENT".
See also
Safety notes (Page 17)
Measuring inputs (Page 22)
Safety notes (Page 73)
Summary of Contents for SENTRON PAC3200
Page 16: ...Introduction 1 6 Further documentation SENTRON PAC3200 16 Manual 02 2008 A5E01168664B 04 ...
Page 90: ...Connection 6 4 Connection examples SENTRON PAC3200 90 Manual 02 2008 A5E01168664B 04 ...
Page 124: ...Operator control 8 2 Operator input steps SENTRON PAC3200 124 Manual 02 2008 A5E01168664B 04 ...
Page 125: ...Operator control 8 2 Operator input steps SENTRON PAC3200 Manual 02 2008 A5E01168664B 04 125 ...
Page 126: ......
Page 178: ...Glossary SENTRON PAC3200 178 Manual 02 2008 A5E01168664B 04 ...
Page 182: ...Index SENTRON PAC3200 182 Manual 02 2008 A5E01168664B 04 ...