2 Functions
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7UT613/63x Manual
C53000-G1176-C160-2
power of the respective side), thus under address
5112
P< fwd
for undershooting of
active power and under address
5115
P> fwd
for exceeding of active power.
If, however, the forward power monitoring must be set in amps secondary, the active
power must be converted to a secondary value. The settings can then be effected
under address
5111
Pf<
for undershooting of active power and under address
5114
Pf>
for exceeding of active power.
The latter is always the case if the forward power monitoring has been assigned to a
measuring location, and not a side of the main protected object.
The following applies to the conversion:
where
P
sec
secondary power
U
Nprim
primary rated voltage of the voltage transformer (inter-
linked)
U
Nsec
secondary rated current of the voltage transformer (in-
terlinked)
I
Nprim
primary rated current of the current transformer
I
Nsec
secondary rated current of the current transformer
P
prim
primary power
Example:
Transformer
16 MVA
(winding)
20 kV
Current transformer
500 A/5 A
Voltage transformer
20 kV/100 V
Switching off during P<
10 % = 0.1
Connecting a parallel transformer
Parallel transformer during P>
90 % = 0.9
In case of reference setting (with reference to the sides = winding data)
Address
5112
P< fwd
= 0.10
Address
5115
P> fwd
= 0.90
When setting in watt secondary, this has the following effect
the setting values
Address
5111
Pf<
= 80 W
Address
5114
Pf>
= 720 W
P< =
P> =
Summary of Contents for SIPROTEC 7UT613 series
Page 16: ...Contents 16 7UT613 63x Manual C53000 G1176 C160 2 Literature 631 Glossary 623 Index 633 ...
Page 30: ...1 Introduction 30 7UT613 63x Manual C53000 G1176 C160 2 ...
Page 506: ...A Appendix 506 7UT613 63x Manual C53000 G1176 C160 2 7UT633 D E ...
Page 508: ...A Appendix 508 7UT613 63x Manual C53000 G1176 C160 2 7UT633 P Q ...
Page 510: ...A Appendix 510 7UT613 63x Manual C53000 G1176 C160 2 7UT635 D E ...
Page 512: ...A Appendix 512 7UT613 63x Manual C53000 G1176 C160 2 7UT635 P Q ...
Page 515: ...A 2 Terminal Assignments 515 7UT613 63x Manual C53000 G1176 C160 2 7UT633 B ...
Page 517: ...A 2 Terminal Assignments 517 7UT613 63x Manual C53000 G1176 C160 2 7UT633 N ...
Page 519: ...A 2 Terminal Assignments 519 7UT613 63x Manual C53000 G1176 C160 2 7UT635 B ...
Page 521: ...A 2 Terminal Assignments 521 7UT613 63x Manual C53000 G1176 C160 2 7UT635 N ...
Page 622: ...A Appendix 622 7UT613 63x Manual C53000 G1176 C160 2 ...
Page 632: ...Literature 632 7UT613 63x Manual C53000 G1176 C160 2 ...