Siemens Siprotec 7SD600 User guide
Siemens AG 1999
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Siemens AG ⋅January 1999
The following does not represent a complete list of all
the safety measures required for the operation of the
equipment (device, module) as certain operating
conditions may necessitate further measures.
During the operation of electric equipĆ
ment, certain parts of the equipment will
always be subject to dangerous voltages.
Improper use can cause serious personal
injury or material damage.
DBefore setting up any electrical conĆ
nections, the E terminal of the
equipment must be correctly earthed.
DAll parts of the circuit linked to the
power supply may be subject to danĆ
gerous voltages.
DEquipment (capacitor storage) can still
be subject to dangerous voltages
even after the supply voltage has
been disconnected.
DOpen operation of current transĆ
former circuits is not permitted.
DThe threshold values specified in this
manual, i.e. operating instructions,
must not be exceeded; this also
applies to testing and commissioning.
DOnly competent persons are perĆ
mitted to operate this equipment. In
order to ensure the trouble-free and
safe operation of this equipment, it is
essential that it is properly transĆ
ported, as well as correctly stored,
assembled, operated and maintained.
These instructions cannot provide detailed informaĆ
tion on all product types or cover every conceivable
method of assembly, operation or maintenance.
If you require any further information, or if you experiĆ
ence any problems not dealt with in detail in the sysĆ
tem manual, please contact your local Siemens dealer
for assistance.
are persons who are familiar
with the installation, assembly, commissioning and
operation of the product and who have the relevant
qualifications, such as, e.g.
DTraining or instruction, i.e. authorization to switch
electric circuits and devices/systems on and off,
as well as disconnect, earth and mark said equipĆ
ment in accordance with standard safety requireĆ
ments.
DTraining or instruction in the maintenance and imĆ
plementation of appropriate safety equipment in
accordance with standard safety requirements.
DFirst Aid training.
The product is herewith confirmed to comply with the
requirements set out in the Council Directive on the
Approximation of the Laws of the Member States
relating to Electromagnetic Compatibility
(89/336/EEC) and the use of electrical equipment
within certain voltage limits (the Low Voltage DirecĆ
tive 73/23/EEC).
This conformity has been tested by SIEMENS AG in
accordance with article 10 of the Directive which
complies with the basic specifications of EN 50081
and EN 50082 for the EMC Directive and the basic
specifications of EN 60255-6 for the Low Voltage DiĆ
rective.
The device has been developed and manufactured for
industrial use to EMC standards.
The evaluation has been carried out in accordance
with the international standards of the IEC 255 series
and the national standards DIN 57 435 / art 303
(corresponds to VDE 0435 / art 303).
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III
iemens AG ⋅January 1999
5.4 Configuring the protective functions 5 - 18................................................
5.4.1 Introduction 5-18.....................................................................
5.4.2 Configuring the functional scope of the device - block 00 5 - 19.............................
5.5 Marshalling of binary inputs, binary outputs and displays 5 - 20..............................
5.5.1 Introduction 5-20.....................................................................
5.5.2 Marshalling of the binary inputs - block 61 5 - 22..........................................
5.5.3 Marshalling of signal relay - block 62 5 - 24...............................................
5.5.4 Marshalling of the LEDs - block 63 5 - 26.................................................
5.5.5 Marshalling of the command relays - block 64 5 - 28......................................
6.1 afety measures 6-1.................................................................
6.2 Operating the device 6-1.............................................................
6.2.1 Membrane keypad/Display panel 6 - 1...................................................
6.2.2 Operation with a PC 6-2..............................................................
6.2.3 Prerequisites for operation 6 - 2........................................................
6.2.4 Front view of the device 6 - 3..........................................................
6.3 etting of function parameters 6 - 4....................................................
6.3.1 Introduction 6-4.....................................................................
6.3.1.1 Procedure for parameterization 6 - 4....................................................
6.3.1.2 etting date and time 6-6............................................................
6.3.2 Initial display 6-7....................................................................
6.3.3 ystem and station data - Block 01 6 - 8................................................
6.3.4 ettings for the line differential protection 6 - 10...........................................
6.3.5 ettings for the pilot wire monitoring 6 - 14...............................................
6.3.6 ettings for the remote tripping 6 - 15....................................................
6.3.7 ettings for tripping on receiving remote command 6 - 16..................................
6.4 Events (alarms) 6-17..................................................................
6.4.1 Introduction 6-17.....................................................................
6.4.2 Operational events - Block 81 6 - 19.....................................................
6.4.3 Fault events - Block 82 6 - 22...........................................................
6.4.4 Reading out operational measured values - Block 84 6 - 25.................................
6.5 Operational control capabilities 6 - 26....................................................
6.5.1 etting date and time 6 - 26............................................................
6.6 Testing and commissioning 6 - 28.......................................................
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8 Repairs 8-1.........................................................................
9 Storage 9-1........................................................................
A.1 Overview diagram A-1..............................................................
A.2 Co ectio diagrams A - 2...........................................................
A.3 Me u tree, Tables A-7...............................................................
A.4 Detailed calculatio of the curre t tra sformer requireme ts A - 32......................
I I dex I-I..........................................................................
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page
V
Siemens AG ⋅January 1999
Figures
Figure 1.1 Line differential protection 7SD600 for operation with two pilot wires, block diagram 1 - 1..
Figure 2.1 Dimensioned drawing of 7XP20 for panel surface mounting with terminals on the sides
(dimensions in mm) 2 - 2...........................................................
Figure 2.2 Dimensioned drawing of 7XP20 for panel surface mounting with terminals at top and bottom
2-3.............................................................................
Figure 2.3 Dimensioned drawing of 7XP20 for panel flush mounting or cubicle mounting
(dimensions in mm) 2 - 4...........................................................
Figure 2.4 Dimensioned drawing of the 4AM4930 2 - 5..........................................
Figure 3.1 Stabilization characteristic of the differential protection (shown for pre-settings) 3 - 7......
Figure 3.2 Summation transformer 4AM4930 3 - 9..............................................
Figure 4.1 Hardware structure of the line differential protection 7SD600 4 - 1.......................
Figure 4.2 Standard connection of summation transformer 4AM4930 4 - 3.........................
Figure 4.3 Connection of summation transformer 4AM4930 to 2-current transformers
in isolated-neutral systems or systems which are not effectively earthed. 4 - 4............
Figure 4.4 Basic principle of differential protection 4 - 5..........................................
Figure 4.5 Differential protection with two pilot wires - flow chart 4 - 6............................
Figure 4.6 Stabilization characteristic of the differential protection 4 - 7............................
Figure 4.7 Simplified logic diagram of the differential protection 4 - 10..............................
Figure 4.8 Coupling of pilot wire monitoring 4 - 12................................................
Figure 4.9 Logic diagram of the functions related to the pilot wire monitoring 4 - 14..................
Figure 5.1 Check set nominal voltage of the integrated power supply 5 - 4.........................
Figure 5.2 Check of selected control voltages of binary inputs 1 to 3 on the p.c.b. 5 - 5..............
Figure 5.3 Standard connection L1ā-āL3ā-āE 5 - 7.................................................
Figure 5.4 Connection L1ā-āL2ā-āL3 with reduced earth-fault sensitivity 5 - 7.........................
Figure 5.5 Connection L1ā-āL3ā-āE with increased earth-fault sensitivity 5 - 7.........................
Figure 5.6 Matching unequal primary currents 5 - 8..............................................
Figure 5.7 wo-phase connection L1ā-āL3 5 - 8..................................................
Figure 5.8 Connection of isolating transformer 7XR9513 5 - 10.....................................
Figure 5.9 Excerpt from the menu tree: Selection of configuration blocks 5 - 13......................
Figure 5.10 Excerpt from the menu tree: Selecting configuration block for the protective functions 5 - 18
Figure 5.11 Excerpt from the menu tree: Example for selecting marshalling of binary inputs 5 - 21.......
Figure 6.1 Front view of 7SD600 with control panel and displays 6 - 3.............................
Figure 6.2 Selection of parameters for the system and station data 6 - 4...........................
Figure 6.3 rip characteristic of the 7SD600 6 - 11................................................
Figure 6.4 Selection of the event blocks 6 - 18...................................................
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Figure 1.1 Line differential protection 7SD600 for operation with
two pilot wires, block diagram
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1 - 2 iemens AG ⋅January 1999
During a system fault (short-circuit in the protected
zone), the instantaneous values of the measured siĆ
gnals are stored in the device for a maximum period
of 5 s and are subsequently available for fault analyĆ
sis. For this purpose, the 7 D600 is equipped with an
R 485 interface with bus-capability so that, with the
DIG I 3 operating program, user-friendly operation as
well as convenient and clear fault recording and evaĆ
luation is possible. The interface is also suited for
operation through a modem connection.
Both hardware and software are constantly monitored
in the device so that faults are detected and indicated
immediately. This ensures an extremely high level of
reliability and availability.
The device cannot operate in conjunction with 7 D24
or 7 D502 but must always be implemented in pairs.
The previously used summation transformer 4AM49
can continue to be used if the device used to replace
a 7 D24.
DNumerical device with powerful 16-bit microproĆ
cessor system;
DComplete numerical measured value processing
and control, from the sampling and digitization of
measured variables through to the trip decisions
for the circuit-breaker;
DComplete galvanic and interference-free isolation
of the internal processing circuits from the measuĆ
ring, control and supply circuits of the station and
the pilot wires by means of screened measured
value transducers, binary in and output modules
and DC converters;
Delf-contained measuring unit for each line end;
DLow demands on the current transformer;
DComprehensive additional functions (see section
1.3);
DContinuous calculation and display of operational
measured values at the front of the device;
Dimple operation via integrated keypad and display
panel or via connected PC with DIG I 3;
Dtorage of fault events and instantaneous values
for disturbance recording;
DData exchange with remote station via a symmeĆ
trical pilot wire pair; thus enabling implementation
of existing pilot wires;
DCommunication with central control and storage
device via serial interface;
DConnection to fiber optic cable via external
R 485/opt. module
DContinuous monitoring of signal path and measuĆ
red signals, as well as all device hardware and
software;
Dimple installation and commissioning, integral
commissioning aids;
DLow maintenance.
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∅
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∅
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