Installing Current And Voltage Terminals; Description - Siemens SIPROTEC 5 Series Hardware Description

5.7

Installing Current and Voltage Terminals

Description

5.7.1
[dwklepos-030211-01.tif, 1, --_--]
Figure 5-22
(1) Current-terminal block
(2) Voltage-terminal block
(3) Spring clips
The spring clips fix the terminal block in place.
[sc_klepos-020414-01, 1, --_--]
Figure 5-23
Current-Terminal Block of the Modular Devices
The following transformers can optionally be installed in a current-terminal block for modular devices:
•
4 protection-class current transformers
•
3 protection-class current transformers and 1 instrument transformer
•
4 instrument transformers
Protection-class current transformers on modular devices are transformers with a rated current of 1 A or 5 A
and a device-dependent measuring range of 20 x rated current or 100 x rated current.
NOTE
i i
You can read the type of the current transformer used on the side of the terminal block:
•
C73334A 1A18 *7* = 4 protection-class current transformers
•
C73334A 1A18 *8* = 3 protection-class current transformers and 1 instrument transformer
•
C73334A 1A18 *9* = 4 instrument transformers
SIPROTEC 5, Hardware Description, Manual
C53000-G5040-C002-C, Edition 10.2017
Current and Voltage Terminals with Spring Clips
Voltage Terminal with Screw Connection
Working on the Device
5.7 Installing Current and Voltage Terminals
183