Siemens SIPROTEC 7UM62 User Manual

Appendix
A.3 Connection Examples
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
557
Figure A-9 Startup Earth Fault Protection
Connection of DC Voltage Input TD1 with Series-Connected Amplifier 7KG6 for Systems with
Startup Converter
Figure A-10 Rotor Earth Fault Protection
with additional unit 7XR61 for injecting nominal-frequency voltage in the rotor circuit using series
resistor 3PP1336
Note 3PP13 is only necessary if more than 0.2 A
eff
are flowing permanently; (rule: UExc. load > 150 V).
In this case the internal resistors of the 7XR61series device are to be shorted.
Figure A-11 Rotor Earth Fault Protection
with series device 7XR61 for injection of a rated-frequency voltage into the rotor circuit if the sensitive
earth current input is used.
Note 3PP13 is only necessary if more than 0.2 A
eff
are flowing permanently; (rule: UExc. load > 150 V).
In this case the internal resistors of the 7XR61series device are to be shorted.

Siemens SIPROTEC 7UM62 Specifications

General

Brand	Siemens
Model	SIPROTEC 7UM62
Category	Protection Device
Language	English