Siemens SENTRON User manual

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Manual
08/2017
L1V30368969104A-02
Introduction
1
General information
2
Product information
3
Functions
4
Mounting
5
Connection
6
Operation
7
Commissioning
8
Accessories
9
Service and maintenance
10
Technical specifications
11
Dimension drawings
12
Applications
13
Appendix
A
ESD guidelines
B
List of abbreviations
C

Siemens AG
Division Energy Management
Postfach 32 20
91050 ERLANGEN
GERMANY
Document order number: 3ZW1012-3KC83-0AC1
Ⓟ09/2017 Subject to change Copyright © Siemens AG 2017. All rights reserved
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury
will
result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury
may
result if proper precautions are not taken.
CAUTION
indicates that minor personal injury can result if proper precautions are not taken.
NOTICE
indicates that property damage can result if proper precautions are not taken.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by
personnel qualified
for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.

Manual, 08/2017, L1V30368969104A-02 5
Table of contents
1 Introduction............................................................................................................................................. 9
2 General information .............................................................................................................................. 11
2.1 Certification.............................................................................................................................11
3 Product information............................................................................................................................... 13
3.1 Product description.................................................................................................................13
3.1.1 Design of the 3KC4 and 3KC8 transfer switching equipment.................................................14
3.1.2 Current ratings of the 3KC4 and 3KC8 transfer switching equipment....................................18
3.2 Product family .........................................................................................................................21
3.2.1 The product families 3KC4 and 3KC8 from 250 A to 3200 A.................................................21
3.2.2 Use of 3KC4 and 3KC8 transfer switching equipment ...........................................................22
3.2.3 Properties of the 3KC4 and 3KC8 transfer switching equipment ...........................................22
3.2.4 Application areas of the 3KC4 and 3KC8 transfer switching equipment................................23
4 Functions.............................................................................................................................................. 25
5 Mounting............................................................................................................................................... 27
5.1 Mounting position....................................................................................................................27
5.2 Installing the 3KC4 and 3KC8 transfer switching equipment..................................................27
5.3 Dimensions of the cover frame for door cut-out .....................................................................30
6 Connection ........................................................................................................................................... 31
6.1 Network types .........................................................................................................................31
6.1.1 Three-phase 4-wire network with neutral (3PH + N) ..............................................................32
6.1.1.1 Circuit diagram for the 3KC4 transfer switching equipment - 4-pole transfer switching
equipment ...............................................................................................................................32
6.1.1.2 Circuit diagram for the 3KC8 transfer switching equipment - 4-pole transfer switching
equipment ...............................................................................................................................33
6.1.2 Three-phase 3-wire network without neutral (3PH)................................................................33
6.1.2.1 Circuit diagram for the 3KC4 transfer switching equipment - 3-pole transfer switching
equipment ...............................................................................................................................34
6.1.2.2 Circuit diagram for the 3KC8 transfer switching equipment - 4-pole transfer switching
equipment ...............................................................................................................................35
6.1.2.3 Circuit diagram for the 3KC8 transfer switching equipment - 3-pole transfer switching
equipment ...............................................................................................................................36
6.1.3 Single-phase network with neutral (1PH + N).........................................................................37
6.1.3.1 Circuit diagram for the 3KC4 transfer switching equipment - 3-pole transfer switching
equipment ...............................................................................................................................37
6.1.3.2 Circuit diagram for the 3KC8 transfer switching equipment - 3-pole transfer switching
equipment ...............................................................................................................................38

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6Manual, 08/2017, L1V30368969104A-02
6.2 Connecting the main circuit.................................................................................................... 39
6.2.1 Connecting terminals of the transfer switching equipment.................................................... 39
6.2.2 Load connection..................................................................................................................... 40
6.2.3 Arrangement of the power supply systems............................................................................ 40
6.2.4 Connection of transfer switching equipment for current ratings 250 A to 1600 A ................. 42
6.2.4.1 Connecting bridging bars on the load side ............................................................................ 42
6.2.4.2 Connecting current ratings 250 A to 1600 A to the main circuit ............................................ 46
6.2.5 Connection of transfer switching equipment for current ratings 2000 A to 3200 A ............... 49
6.2.5.1 Copper bar connection kit...................................................................................................... 49
6.2.5.2 Connecting current ratings 2000 A to 3200 A to the main circuit (on the line side)............... 55
6.2.5.3 Connecting current ratings 2000 A to 3200 A to the main circuit (on the load side) ............. 65
6.3 Connecting the control circuit................................................................................................. 72
6.3.1 Inputs and outputs of the motor operator............................................................................... 72
6.3.1.1 Overview of motor operator ................................................................................................... 72
6.3.1.2 Connecting the inputs and outputs of the motor operator ..................................................... 73
6.3.2 Power supply of the motor operator (3KC4 only)................................................................... 75
6.3.2.1 Mounting and connecting the dual power supply (DPS)........................................................ 77
6.3.2.2 Installing and connecting an autotransformer (400 V / 230 V) .............................................. 79
6.3.3 Auxiliary switch of the transfer switching equipment ............................................................. 81
6.3.3.1 Installing auxiliary switches 250 A to 630 A........................................................................... 82
6.3.3.2 Installing auxiliary switches of current rating 800 A to 1600 A .............................................. 84
6.3.4 Inputs and outputs of the electronic module (3KC8 only)...................................................... 88
6.3.5 Connecting the inputs and outputs of the electronic module (3KC8 only)............................. 89
6.3.5.1 Installing accessories for the electronic module.................................................................... 89
6.3.5.2 Connecting power supply kit 3KC9830-, 3KC9831- (4-pole)................................................. 92
6.3.5.3 Connecting the auxiliary conductor terminal 3KC9822-, 3KC9832- for a three-phase
3-wire network (3-pole) .......................................................................................................... 95
6.3.5.4 Connecting power supply kit 3KC9833-, 3KC9834- for single-phase network...................... 98
7 Operation.............................................................................................................................................101
7.1 Operating modes of the transfer switching equipment ........................................................ 101
7.1.1 Remote mode....................................................................................................................... 102
7.1.2 Manual operation ................................................................................................................. 103
7.1.3 Padlocking mode.................................................................................................................. 104
7.1.4 Automatic mode (3KC8 only)............................................................................................... 105
7.2 Functions of the inputs and outputs..................................................................................... 106
7.2.1 Inputs and outputs of the motor operator............................................................................. 106
7.2.1.1 Outputs of the motor operator.............................................................................................. 111
7.2.2 Auxiliary switches................................................................................................................. 114
7.2.3 Inputs and outputs of the electronic module (3KC8 only).................................................... 115
7.2.3.1 Inputs for voltage measurement and power supply............................................................. 115
7.2.3.2 Control inputs of the electronic module ............................................................................... 118
7.2.3.3 Functions of the control inputs for network / generator application ..................................... 119
7.2.3.4 Functions of the control inputs for network / network application........................................ 121
7.2.3.5 Outputs of the electronic module......................................................................................... 123
7.3 Remote mode....................................................................................................................... 126
7.3.1 Impulse logic........................................................................................................................ 126
7.3.2 Continuous operation logic .................................................................................................. 129

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Manual, 08/2017, L1V30368969104A-02 7
7.4 Automatic mode - programming of the electronic module (3KC8 only)................................132
7.4.1 Step 1: Preset network conditions........................................................................................132
7.4.2 Step 2: Setting the potentiometer .........................................................................................134
7.4.3 Step 3: Automatic configuration of the transfer switching equipment (only with
potentiometer Un = 0)...........................................................................................................136
7.4.4 Step 4: Saving the configuration...........................................................................................137
7.4.5 Step 5: Switching the 3KC8 transfer switching equipment to automatic mode....................137
8 Commissioning ................................................................................................................................... 139
8.1 Commissioning the 3KC4 transfer switching equipment ......................................................139
8.2 Commissioning the 3KC8 transfer switching equipment ......................................................141
9 Accessories ........................................................................................................................................ 145
9.1 Terminal covers ....................................................................................................................146
9.1.1 Mounting terminal covers......................................................................................................147
9.2 Phase barriers.......................................................................................................................148
9.2.1 Mounting phase barriers.......................................................................................................149
9.3 Terminal plates .....................................................................................................................150
9.3.1 Mounting terminal plates.......................................................................................................151
9.4 Mounting spacers..................................................................................................................153
9.4.1 Fitting mounting spacers.......................................................................................................153
9.5 Bridging bars.........................................................................................................................154
9.6 Copper bar connection kit.....................................................................................................155
9.7 Autotransformer ....................................................................................................................157
9.8 Dual power supply (DPS, 3KC4 only)...................................................................................158
9.9 Power supply kit 3KC9830-, 3KC9831- (4-pole, 3KC8 only)................................................159
9.10 Auxiliary conductor terminal 3KC9822-, 3KC9832- (3-pole, 3KC8 only)..............................160
9.11 Power supply kit 3KC9833-, 3KC9834- (2-pole, 3KC8 only)................................................161
9.12 Cover frame (3KC8 only)......................................................................................................162
9.13 Auxiliary switches..................................................................................................................163
9.14 Display (3KC8 only)..............................................................................................................164
9.15 Connection cable (3KC8 only)..............................................................................................167
9.16 Sealable cover (3KC8 only)..................................................................................................168
9.17 Motor operator ......................................................................................................................170
9.18 Electronic module (3KC8 only) .............................................................................................175
10 Service and maintenance.................................................................................................................... 177
10.1 Fault rectification...................................................................................................................177
10.1.1 Fault states and fault detection on the 3KC4 transfer switching equipment.........................177
10.1.2 Fault states and fault detection on the 3KC8 transfer switching equipment.........................179
10.2 Regular service and maintenance ........................................................................................181

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8Manual, 08/2017, L1V30368969104A-02
11 Technical specifications .......................................................................................................................183
11.1 Technical specifications 3KC4 and 3KC8 from 250 A to 1000 A......................................... 183
11.2 Technical specifications 3KC4 and 3KC8 from 1250 A to 3200 A....................................... 186
11.3 Technical specifications of the electronic module................................................................ 189
12 Dimension drawings.............................................................................................................................191
12.1 Dimension drawings of the 3KC4 transfer switching equipment ......................................... 192
12.2 Dimension drawings of the 3KC8 transfer switching equipment ......................................... 198
13 Applications .........................................................................................................................................205
13.1 Transfer between two sources with one outgoing load ....................................................... 206
13.2 Transfer between two sources with two outgoing loads...................................................... 207
13.3 Transfer between three sources with one outgoing load..................................................... 209
13.4 Transfer between three sources with two outgoing loads ................................................... 210
13.5 Transfer between two loads with one incoming source (with 3KC4 transfer switching
equipment only).................................................................................................................... 213
A Appendix .............................................................................................................................................215
A.1 Environmental conditions..................................................................................................... 215
A.2 Operating conditions............................................................................................................ 216
A.2.1 Temperature......................................................................................................................... 216
A.2.2 Humidity ............................................................................................................................... 216
A.2.3 Altitude conditions................................................................................................................ 216
A.3 Storage conditions ............................................................................................................... 217
A.3.1 Temperature......................................................................................................................... 217
A.3.2 Storage conditions ............................................................................................................... 217
A.3.3 Storage position................................................................................................................... 217
B ESD guidelines....................................................................................................................................221
B.1 Electrostatic sensitive devices (ESD) .................................................................................. 221
C List of abbreviations.............................................................................................................................223

Manual, 08/2017, L1V30368969104A-02 9
Introduction
1
Purpose of this manual
This manual describes the functions, installation, commissioning, and operation of the
following transfer switching equipment:
●3KC4 remotely operated transfer switching equipment (RTSE)
●3KC8 automatic transfer switching equipment (ATSE)
The following topics are described in the manual:
●Product specifications
●Mounting
●Connection
●Operation
●Commissioning
●Accessories
●Corrective maintenance and fault rectification
●Application examples
Target groups and required basic knowledge
This manual is intended for:
●Users
●Qualified electricians
●Switchgear manufacturers
●Maintenance personnel
A general knowledge of low-voltage power distribution is required to understand this manual.
Technical support
You can find further support on the Internet at:
Technical support (https://www.siemens.com/lowvoltage/technical-support)
Applicable documents
You can find more information on the Internet via the following link:
Manual "3KC Transfer Switching Equipment up to 3200 A"
(https://support.industry.siemens.com/cs/de/en/ps/19749)

Introduction
10 Manual, 08/2017, L1V30368969104A-02

Manual, 08/2017, L1V30368969104A-02 11
General information
2
The transfer switching equipment and its accessories comply with the following international
standards:
Standard
Designation
IEC 60269-1 Low-voltage fuses - Part 1: General requirements
IEC 60269-2 Low-voltage fuses - Part 2: Supplementary requirements for fuses for use
by qualified electrical technicians or electrically trained persons (fuses pre-
dominantly for industrial use)
IEC 60947-1 Low-voltage switchgear and controlgear - Part 1: General requirements
IEC 60947-3 Low-voltage switchgear and controlgear - Part 3: Switches, disconnectors,
switch-disconnectors and fuse-combination units
IEC 60947-5-1 Low-voltage switchgear and controlgear - Part 5-1: Control circuit devices
and switching elements - electromechanical control circuit devices
IEC 60947-6-1 Low-voltage switchgear and controlgear - Part 6-1: Multiple function equip-
ment - Transfer switching equipment
IEC 61010-1 Safety requirements for electrical equipment for measurement, control and
laboratory use - Part 3-1: Conformity verification report for IEC 61010-
1:2001 - General requirements
IEC 61326-1 Electrical equipment for measurement, control and laboratory use - EMC
requirements - Part 1 General requirements
EN 61558-1 Safety of transformers, power supplies, reactors and similar products - Part
1: General requirements and tests
EN 61558-2-13 Safety of transformers, reactors, power supplies and similar products for
supply voltages up to 1100 V - Part 2-13: Particular requirements and tests
for autotransformers and power supply units incorporating autotransform-
ers.
2.1
Certification

General information
2.1 Certification
12 Manual, 08/2017, L1V30368969104A-02

Manual, 08/2017, L1V30368969104A-02 13
Product information
3
3.1
Product description
The following features of the 3KC4 and 3KC8 transfer switching equipment are described in
this chapter:
●Design
●Current ratings

Product information
3.1 Product description
14 Manual, 08/2017, L1V30368969104A-02
3.1.1
Design of the 3KC4 and 3KC8 transfer switching equipment
3KC4 remotely operated transfer switching equipment (RTSE):

Product information
3.1 Product description
Manual, 08/2017, L1V30368969104A-02 15
3KC8 automatic transfer switching equipment (ATSE):
①
②
③
④
⑤
⑥
⑦
⑧
⑨
⑩
Switching unit
Connecting terminal of the main source
(source I)
Connecting terminal of the alternative source
(source II)
Indication of the selected source: O = Off /
I = source I / II = source II
3KC4: Cover of the power supply connection
3KC8: Electronic module (below this is locat-
ed the power supply connection)
Assembly for mounting
Motor operator
"Power" LED
Plug-on handle for manual changeover
Warning LED
⑪
⑫
⑬
⑭
⑮
⑯
⑰
Switch for selecting the mode (Manual /
Automatic)
Padlock assembly
4 outputs for
•"Switch position" (I / O / II) indicator
•"Product availability" indicator
Connection for attachable handle
5 inputs for
•Positioning commands (I / O / II)
•Activation of remote control
•Priority command for the OFF position
Mounting channels for terminal protection /
phase barriers
Fixing assembly for terminal plate

Product information
3.1 Product description
16 Manual, 08/2017, L1V30368969104A-02
The 3KC8 automatic transfer switching equipment (ATSE) is based on the 3KC4
(RTSE) transfer switching equipment. In contrast to the 3KC4, an electronic module is
additionally integrated into the 3KC8.
The electronic module enables monitoring of 2 sources as well as automatic transfer
switching. In addition, the electronic module supplies the 3KC8 transfer switching equipment
with power.
Electronic module
The 3KC8 transfer switching equipment is programmed using the electronic module.
You can find more information on programming in the section titled Automatic mode -
programming of the electronic module (3KC8 only) (Page 132).
Operator controls
①
Potentiometer 1: Presetting of line voltage/frequency (AutoConf, 1 to 13)
②
Potentiometer 2: Presetting of voltage/frequency limits (1 to 14)
③
Potentiometer 3: Presetting of the transfer time delay for source failure (0 to 60 s)
④
Potentiometer 4: Presetting of the return switching time delay for prioritized source recovered
(0 to 60 min)
⑤
DIP switch for configuration
⑥
"OK-Prog" pushbutton: Saves the current settings

Product information
3.1 Product description
Manual, 08/2017, L1V30368969104A-02 17
Indicators (LEDs)
Designation
Function
Meaning
①
I Availability
source I Shows a continuous green light if source I is available and is within the accepted tolerance.
②
II Availability
source II Shows a continuous green light if source II is available and is within the accepted tolerance.
③
Fault indicator •Flashes red if there is an external fault (e.g. incorrect
position of the neutral conductor).
•Shows a continuous red light if there is an internal
fault of the electronic module.
④
READY "Ready" mode Indicates the status of the transfer switching equipment:
•Shows a continuous green light if the transfer switch-
ing equipment is in "Auto" mode and is ready for
source transfer.
•Flashes green if defaults haven not been saved or a
new change has been made.
⑤
MANUAL "Manual" mode Shows a continuous yellow light if the transfer switching
equipment is in "Manual" mode.
⑥
AUTO "Auto" mode Indicates the activity of "Auto" mode:
•Shows a continuous green light if the transfer switch-
ing equipment is in "Auto" mode and no timer is ac-
tive.
•
Flashes green if the transfer switching equipment is in
"Auto" mode and the timer is active.
⑦
REMOTE "Remote" mode Shows a continuous yellow light if the transfer switching
equipment is in remote mode (controlled via inputs).
⑧
TEST
ON LOAD "Test on load" mode Shows a continuous yellow light if the transfer switching equipment is in "Test on load" mode.

Product information
3.1 Product description
18 Manual, 08/2017, L1V30368969104A-02
⑨
TEST
OFF LOAD "Test off load" mode Shows a continuous yellow light if the transfer switching equipment is in "Test off load" mode.
⑩
- Position II indication Shows a continuous green light if the switch is in posi-
tion II.
⑪
- Position I indication Shows a continuous green light if the switch is in posi-
tion I.
⑫
O Position "0" indica-
tion Shows a continuous yellow light if the switch is in posi- tion "0" (OFF).
3.1.2
Current ratings of the 3KC4 and 3KC8 transfer switching equipment
The 3KC4 and 3KC8 transfer switching equipment are available in 10 current ratings. The
table shows the types of transfer switching equipment according to the current ratings:
Current rating
Device type
3KC4 (RTSE)
3KC8 (ATSE)
3-pole
4-pole
3-pole
4-pole
250 A ✓✓✓✓
400 A ✓✓✓✓
630 A ✓✓✓✓
800 A ✓✓✓✓
1000 A ✓✓✓✓
1250 A ✓✓✓✓
1600 A ✓✓✓✓
2000 A ✓✓✓✓
2500 A ✓✓✓✓
3200 A ✓✓✓✓

Product information
3.1 Product description
Manual, 08/2017, L1V30368969104A-02 19
Designs
The following figures show the different designs of the transfer switching equipment depicted
according to current rating using the example of the 3KC8 transfer switching equipment:
3KC8 250 A
3KC8 400 A
3KC8 630 A
3KC8 800 A / 1000 A
3KC8 1250 A
3KC8 1600 A

Product information
3.1 Product description
20 Manual, 08/2017, L1V30368969104A-02
3KC8 2000 A / 2500 A / 3200 A