Protection And Control Equipment; Voltage Detecting Systems - Siemens 8DA10 Series Installation And Operating Instructions Manual

861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11
Version 6
Version 7
13

Protection and control equipment

The protection equipment and control equipment is designed customer-specifically. T
he devices are installed in the low-voltage compartment or in the low-voltage niche.
Details are given in the respective circuit documentation.
14

Voltage detecting systems

For voltage detection according to IEC 61243-5 and VDE 0682 Part 415 with the following
voltage detecting systems:
• LRM plug-in sockets
• VOIS+, VOIS R+ (option)
• CAPDIS -S1/-S2+ (option)
• WEGA 1.2/2.2 (option)
Fig. 12: Voltage detecting system via capacitive voltage
divider (principle)
• -C1: Capacitance integrated into bushing
• -C2: Capacitance of the connection leads and the voltage indicator to earth
• U = U / √ 3 during rated operation in the three-phase system
LE N
• U = U = Voltage at the interface (plug-in sockets) of the plug-in voltage indicator or
2 A
the test socket of the integrated voltage indicator
Solid-insulated bar connection
1
Gas-insulated bar connection
1
Description
①
Integrated voltage indicator
② Plug-in LRM voltage indicator
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