Siemens SIPROTEC 7UM62 User manual

SIPROTEC
Multifunction Generator,
Motor and Transformer
Protection Relay
7UM62
V4.1
Manual
C53000-G1176-C149-3
Preface
Table of Contents
Introduction 1
Functions 2
Installation and Commissioning 3
Technical Data 4
Appendix A
Index

Siemens Aktiengesellschaft Manual No. C53000-G1176-C149-3
Liability Statement
We have checked the text of this manual against the
hardware and software described. Exclusions and de-
viations cannot be ruled out; we accept no liability for
lack of total agreement.
The information in this manual is checked periodically,
and necessary corrections will be included in future
editions. We appreciate any suggested improvements.
We reserve the right to make technical improvements
without notice.
Release V4.10.01
Copyright
Copyright © Siemens AG 2002. All rights reserved.
Dissemination or reproduction of this document, or evalu-
ation and communication of its contents, is not authorized
except where expressly permitted. Violations are liable for
damages. All rights reserved, particularly for the purposes
of patent application or trademark registration.
Registered trademarks
SIPROTEC, SIMATIC®,SIMATICNET®,SINAUT®,SI-
CAM®, and DIGSI®are registered trademarks of Siemens
AG. Other designations in this manual may be trademarks
that if used by third parties for their own purposes may vi-
olate the rights of the owner.

i7UM62 Manual
C53000-G1176-C149-3
Preface
Purpose of This
Manual This manual describes the functions, operation, installation, and placing into service of the device. In particular, one will find:
•Information regarding customizing of the device and descriptions of device
functions and settings →Chapter 2;
•Instructions for mounting and commissioning →Chapter 3;
•Instructions for mounting and commissioning →Chapter 4;
•As well as a compilation of the most significant data for experienced users in the
Appendix A.
For general information on the operation and configuration of SIPROTEC®4 devices,
please refer to theSIPROTEC®4 System Manual (Order No.: E50417–H1176–C151).
Target Audience Protection engineers, commissioning engineers, personnel concerned with
adjustment, checking, and service of selective protective equipment, automatic and
control facilities, and personnel of electrical facilities and power plants.
Applicability of
This Manual This manual is valid for: SIPROTEC®4 7UM62 Multifunction Generator, Motor and
Transformer Protections; firmware version 4.1.
This product is UL–certified with the data as stated in Section 4.1:
Indication of Conformity
This product complies with the directive of the Council of the European Communities
on the approximation of the laws of the member states relating to electromagnetic
compatibility (EMC Council Directive 89/336/EEC) and concerning electrical
equipment for use within certain voltage limits (Low-voltage Directive 73/23/EEC).
This conformity is proved by tests conducted by Siemens AG in accordance with
Article 10 of the Council Directive in agreement with the generic standards EN 50081
and EN 50082 for EMC directive, and with the standard EN 60255–6 for the low-
voltage directive.
The product conforms with the international standard of the series IEC 60255 and the
German standard DIN 57435 /Part 303 (corresponds to VDE 0435/Part 303).
IND. CONT. EQ.
TYPE 1
69CA
IND. CONT. EQ.
TYPE 1

Preface
ii 7UM62 Manual
C53000-G1176-C149-3
Additional Support For questions regarding SIPROTEC®4 devices, please contact your Siemens
representative.
Training Courses Individual course offerings may be found in our Training Catalog, or questions can be
directed to our training center. Please contact your Siemens representative.
Instructions and
Warnings The following indicators and standard definitions are used:
DANGER
means that death, severe personal injury, or considerable equipment damage will
occur if safety precautions are disregarded.
WARNING
means that death, severe personal injury, or considerable equipment damage will
occur if safety precautions are disregarded.
Caution
means that death, severe personal injury, or considerable equipment damage will
occur if safety precautions are disregarded. This manual describes the functions,
operation, installation, and placing into service of the device.
Instruction
is an important piece of information regarding the product or the part of the manual
that deserves special attention.
QUALIFIED PERSONNEL
Prerequisites to proper and safe operation of this product are proper transport, proper
storage, setup, installation, operation, and maintenance of the product, as well as
careful operation and servicing of the device within the scope of the warnings and
instructions of this manual.
GTraining and instruction (or other qualification) for switching, grounding, and
designating devices and systems.
GTraining and instruction (or other qualification) for switching, grounding, and
designating devices and systems.
GFirst aid training.
WARNING
During operation of electrical equipment, certain parts of these devices are under high
voltage. Severe personal injury or significant equipment damage could result from
improper behavior.
Only qualified personnel should work on this equipment or in the vicinity of this
equipment. These personnel must be familiar with all warnings and service
procedures described in this manual, as well as with safety regulations.
Prerequisites to proper and safe operation of this product are proper transport, proper
storage, setup, installation, operation, and maintenance of the product, as well as
careful operation and servicing of the device within the scope of the warnings and
instructions of this manual.
In particular, the general facility and safety regulations for work with high-voltage
equipment (e.g. ANSI, IEC, EN, or other national or international regulations) must be
observed. Noncompliance may result in death, injury, or significant equipment
damage.

Preface
iii
7UM62 Manual
C53000-G1176-C149-3
Typographic and
Graphical
Conventions
The following text formats are used to identify concepts giving device information
described by the text flow:
Parameter names, or identifiers for configuration or function parameters that appear
in the device display or on the screen of a PC (with DIGSI®4) are shown in mono-
script (same point size) bold text. This also applies to header bars for selection menus.
Parameter conditions,or possible settings of parameters that appear in the
device display or on the screen of a PC (with DIGSI®4), are additionally shown in italic
style. This also applies to header bars for selection menus.
“Annunciations”, or identifiers for information produced by the device or required
by other devices or from the switch-gear is shown in mono-script (same point size) and
placed into quotation marks.
For diagrams in which the identifier type results from the representation itself, text
conventions may differ from the above-mentioned.
The following symbols are used in diagrams:
possible conditions On and Off
IL1
GND Fault device-internal (logical) input signal
GND Fault device-internal (logical) input signal
internal input signal of an analog quantity
>Release
Dev. Trip
external binary input signal with function number F# (binary input,
On
Off
1234 FUNCTION
Parameter address
Parameter name
Parameter Conditions
example of a parameter switch FUNCTION with address 1234 and
F#
F# external binary input signal with function number F# (binary input,
from device)
respective annunciation to the device)
Input signal of an analog quantity
≥1
&
OR gate
AND gate
Signal inversion
OR

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iv 7UM62 Manual
C53000-G1176-C149-3
n
I2>
1706 I2>>
0T
S
R
Q
Input signals of dynamic quantity
Formation of one output signal from a number
of analog inputs
Timer (dropout delayed)
Limit stage with parameter address and
TDynamic triggered pulse timer (monoflop)
Static memory (RS–flipflop) with setting input (S),
=1 Exclusive–OR gate: output is active, if only one
of the inputs is active
=Coincidence gate: output is active, if both inputs
are active simultaneously
0T
1706 T I2>>
Timer (pick up delayed) with parameter address
and designator
resetting input (R), output (Q) and inverted
Q
designator
output (Q)

v7UM62 Manual
C53000-G1176-C149-3
Table of Contents
1 Introduction.......................................................................................................................................... 1
1.1 Overall Operation ................................................................................................................... 2
1.2 Applications............................................................................................................................ 5
1.3 Features ................................................................................................................................. 7
2 Functions............................................................................................................................................ 13
2.1 Introduction, Reference Power System................................................................................ 16
2.2 Functional Scope.................................................................................................................. 18
2.2.1 Description ........................................................................................................................... 18
2.2.2 Setting Hints......................................................................................................................... 18
2.2.2.1 Settings .............................................................................................................................. 23
2.3 Power System Data 1........................................................................................................... 27
2.3.1 Functional Description.......................................................................................................... 27
2.3.2 Setting Hints......................................................................................................................... 27
2.3.2.1 Settings 1 ............................................................................................................................. 33
2.3.2.2 List of Information ................................................................................................................ 34
2.4 Setting Groups ..................................................................................................................... 35
2.4.1 Functional Description.......................................................................................................... 35
2.4.2 Setting Hints......................................................................................................................... 35
2.4.2.1 Settings ................................................................................................................................ 35
2.4.2.2 Information .......................................................................................................................... 35
2.5 Power System Data 2........................................................................................................... 36
2.5.1 Functional Description.......................................................................................................... 36
2.5.2 Setting Hints......................................................................................................................... 36
2.5.2.1 Settings ................................................................................................................................ 36
2.5.2.2 Information ........................................................................................................................... 36
2.6 Definite-Time Overcurrent Protection (I>, ANSI 50/51)
with Undervoltage Seal-In38
2.6.1 Functional Description.......................................................................................................... 38
2.6.2 Setting Hints......................................................................................................................... 39
2.6.2.1 Settings for the Definite-Time Overcurrent Protection (Stage I>)......................................... 40
2.6.2.2 Information from Definite-Time Overcurrent Protection (Stage I>)....................................... 41
2.7 Definite-Time Overcurrent Protection (I>>, ANSI 50, 51, 67)
with Direction Detection........................................................................................................ 42
2.7.1 Functional Description.......................................................................................................... 42

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vi 7UM62 Manual
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2.7.2 Setting Hints ......................................................................................................................... 44
2.7.2.1 Settings for the I>> Stage of the Definite-Time Overcurrent Protection ............................... 47
2.7.2.2 Information for the I>> stage of the Definite-Time Overcurrent Protection .......................... 47
2.8 Inverse-Time Overcurrent Protection (ANSI 51V) ................................................................ 48
2.8.1 Functional Description..........................................................................................................48
2.8.2 Setting Hints ......................................................................................................................... 52
2.8.2.1 Settings of the Inverse O/C Time Protection ........................................................................53
2.8.2.2 Information for the Inverse-Time Overcurrent Protection ..................................................... 54
2.9 Thermal Overload Protection (ANSI 49)............................................................................... 55
2.9.1 Functional Description..........................................................................................................55
2.9.2 Setting Hints ......................................................................................................................... 59
2.9.2.1 Thermal Overload Protection Settings.................................................................................. 63
2.9.2.2 Information List for the Thermal Overload Protection........................................................... 64
2.10 Unbalanced Load (Negative Sequence) Protection (ANSI 46).............................................65
2.10.1 Functional Description..........................................................................................................65
2.10.2 Setting Hints ......................................................................................................................... 67
2.10.2.1 Settings of the Unbalanced Load Protection ........................................................................69
2.10.2.2 Information for the Unbalanced Load Protection.................................................................. 70
2.11 Startup Overcurrent Protection (ANSI 51)............................................................................71
2.11.1 Functional Description..........................................................................................................72
2.11.2 Setting Hints ......................................................................................................................... 72
2.11.2.1 Settings of the Startup Overcurrent Protection..................................................................... 74
2.11.2.2 Information for the Startup Overcurrent Protection............................................................... 74
2.12 Differential Protection (ANSI 87G/87M/87T).........................................................................75
2.12.1 Functional Description..........................................................................................................75
2.12.1.1 Protected Object Generator or Motor: Particularities............................................................ 77
2.12.1.2 Protected Object Transformer: Particularities....................................................................... 78
2.12.1.3 Evaluation of Measured Quantities....................................................................................... 81
2.12.2 Setting Hints ......................................................................................................................... 89
2.12.2.1 Differential Protection for Generators and Motors................................................................ 89
2.12.2.2 Differential Protection for Transformers................................................................................ 91
2.12.2.3 Settings of the Differential Protection ................................................................................... 95
2.12.2.4 Information for the Differential Protection............................................................................. 96
2.13 Earth Current Differential Protection (ANSI 87GN, TN)........................................................ 98
2.13.1 Functional Description..........................................................................................................98
2.13.2 Setting Hints .......................................................................................................................103
2.13.2.1 Settings of the Earth Current Differential Protection...........................................................105
2.13.2.2 Information for the Earth Current Differential Protection..................................................... 105
2.14 Underexcitation (Loss-of-Field) Protection (ANSI 40).........................................................106
2.14.1 Functional Description........................................................................................................ 106
2.14.2 Setting Hints .......................................................................................................................109
2.14.2.1 Settings of the Underexcitation (Loss-of-Field) Protection ................................................. 113
2.14.2.2 Information for the Underexcitation (Loss-of-Field) Protection .......................................... 114
2.15 Reverse Power Protection (ANSI 32R)............................................................................... 115
2.15.1 Functional Description........................................................................................................115
2.15.2 Setting Hints .......................................................................................................................116

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7UM62 Manual
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2.15.2.1 Settings of the Reverse Power Protection.......................................................................... 117
2.15.2.2 Information for the Reverse Power Protection.................................................................... 118
2.16 Forward Active Power Supervision (ANSI 32F).................................................................. 119
2.16.1 Functional Description........................................................................................................ 119
2.16.2 Setting Hints....................................................................................................................... 120
2.16.2.1 Settings of the Forward Active Power Supervision............................................................. 120
2.16.2.2 Information for the Forward Power Supervision................................................................. 121
2.17 Impedance Protection (ANSI 21)........................................................................................ 122
2.17.1 Functional Description........................................................................................................ 122
2.17.1.1 Pickup................................................................................................................................. 122
2.17.1.2 Determination of the Short–Circuit Impedance................................................................... 123
2.17.1.3 Tripping Characteristic........................................................................................................ 125
2.17.1.4 Tripping Logic..................................................................................................................... 126
2.17.2 Setting Hints....................................................................................................................... 128
2.17.3 Power Swing Blocking........................................................................................................ 131
2.17.3.1 Setting Hints....................................................................................................................... 132
2.17.3.2 Settings of the Impedance Protection................................................................................. 135
2.17.3.3 Information from the Impedance Protection ....................................................................... 135
2.18 Out-of-Step Protection (ANSI 78)....................................................................................... 137
2.18.1 Functional Description........................................................................................................ 137
2.18.1.1 Measuring Principle............................................................................................................ 137
2.18.1.2 Out-of-Step Logic ............................................................................................................... 139
2.18.2 Setting Hints....................................................................................................................... 142
2.18.2.1 Settings of the Out-of-Step Protection................................................................................ 146
2.18.2.2 Information for the Out-of-Step Protection.......................................................................... 147
2.19 Undervoltage Protection (ANSI 27).................................................................................... 148
2.19.1 Functional Description........................................................................................................ 148
2.19.2 Setting Hints....................................................................................................................... 149
2.19.2.1 Settings of the Undervoltage Protection............................................................................. 150
2.19.2.2 Information for the Undervoltage Protection....................................................................... 150
2.20 Overvoltage Protection (ANSI 59)...................................................................................... 151
2.20.1 Functional Description........................................................................................................ 151
2.20.2 Setting Hints....................................................................................................................... 151
2.20.2.1 Settings of the Overvoltage Protection............................................................................... 152
2.20.2.2 Information for the Overvoltage Protection......................................................................... 152
2.21 Frequency Protection (ANSI 81)......................................................................................... 154
2.21.1 Functional Description........................................................................................................ 154
2.21.2 Setting Hints....................................................................................................................... 155
2.21.2.1 Settings for the Frequency Protection................................................................................ 157
2.21.2.2 Information for Frequency Protection................................................................................. 157
2.22 Overexcitation (Volt/Hertz) Protection (ANSI 24) ............................................................... 159
2.22.1 Functional Description........................................................................................................ 159
2.22.2 Setting Hints....................................................................................................................... 161
2.22.2.1 Settings of the Overexcitation Protection ........................................................................... 163
2.22.2.2 Information from the Overexcitation Protection.................................................................. 163
2.23 Inverse-Time Undervoltage Protection (ANSI 27).............................................................. 164

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viii 7UM62 Manual
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2.23.1 Functional Description........................................................................................................164
2.23.2 Setting Hints .......................................................................................................................165
2.23.2.1 Settings of the Inverse Undervoltage Protection ................................................................166
2.23.2.2 Information for the Inverse Undervoltage Protection.......................................................... 166
2.24 Rate-of-Frequency-Change Protection df/dt (ANSI 81R) ...................................................167
2.24.1 Functional Description........................................................................................................167
2.24.2 Setting Hints .......................................................................................................................168
2.24.2.1 Settings of the Rate-of-Frequency-Change Protection.......................................................170
2.24.2.2 Information for the Rate-of-Frequency-Change Protection.................................................171
2.25 Jump of Voltage Vector ...................................................................................................... 172
2.25.1 Functional Description........................................................................................................173
2.25.2 Setting Hints .......................................................................................................................174
2.25.2.1 Settings of the Vector Jump Detection ...............................................................................175
2.25.2.2 Information for the Vector Jump Detection.........................................................................176
2.26 90–%–Stator Earth Fault Protection (ANSI 59N, 64G, 67G)..............................................177
2.26.1 Functional Description........................................................................................................177
2.26.2 Setting Hints .......................................................................................................................181
2.26.2.1 Settings of the 90% Stator Earth Fault Protection..............................................................183
2.26.2.2 Information for the 90% Stator Earth Fault Protection........................................................184
2.27 Sensitive Earth Fault Protection (ANSI 51GN, 64R)........................................................... 185
2.27.1 Functional Description........................................................................................................185
2.27.2 Setting Hints .......................................................................................................................187
2.27.2.1 Settings of the Sensitive Earth Fault Protection .................................................................188
2.27.2.2 Information for the Sensitive Earth Current Detection .......................................................188
2.28 100–%–Stator Earth Fault Protection with 3rd Harmonics
(ANSI 27/59TN 3rd Harm.).................................................................................................189
2.28.1 Functional Description........................................................................................................189
2.28.2 Setting Hints .......................................................................................................................191
2.28.2.1 Settings of the 100–%–Stator Earth Fault Protection with 3rd Harmonics ........................ 192
2.28.2.2 Information for the 100–% Stator Earth Fault Protection with 3rd Harmonics....................193
2.29 100–% Stator Earth Fault Protection with 20 Hz Voltage Injection (ANSI 64G - 100%).....194
2.29.1 Functional Description........................................................................................................194
2.29.2 Setting Hints .......................................................................................................................197
2.29.2.1 Settings of the 100-% Stator Earth Fault Protection........................................................... 199
2.29.2.2 Information for the 100-% Stator Earth Fault Protection..................................................... 200
2.30 Rotor Earth Fault Protection R, fn (ANSI 64R)...................................................................201
2.30.1 Functional Description........................................................................................................201
2.30.2 Setting Hints .......................................................................................................................203
2.30.2.1 Settings of the Rotor Earth Fault Protection.......................................................................204
2.30.2.2 Information for the Rotor Earth Fault Protection.................................................................205
2.31 Sensitive Rotor Earth Fault Protection with 1 to 3 Hz Square
Wave Voltage Injection (ANSI 64R - 1 to 3 Hz)..................................................................206
2.31.1 Functional Description........................................................................................................206
2.31.2 Setting Hints .......................................................................................................................211
2.31.2.1 Settings of the Sensitive Rotor Earth Fault Protection........................................................212