Siemens SIPROTEC 5 Technical Data

Characteristic curve: see Figure 11-14
Minimum time of the characteristic curve 0.00 s to 30.00 s Increments of 0.01 s
Knee-point time of the curve 0.00 s to 100.00 s Increments of 0.01 s
Maximum time of the characteristic curve 0.00 s to 200.00 s Increments of 0.01 s
Knee-point value 0.030 A to 35.000 A Increments of 0.001 A
Current at minimum time of the curve 0.030 A to 35.000 A Increments of 0.001 A
Time multiplier 0.05 to 1.50 Increments of 0.01
[dwdrloinkn-171013, 1, en_US]
Figure 11-14
Operate Curve of the Logarithmic Inverse Time with Knee-Point Characteristic (In the Example
of Threshold = 0.004 A)
Dropout
The greater dropout differential (= | pickup value – dropout value |) of the following 2 criteria
applies:
Dropout differential derived from the parameter
Dropout ratio
If this parameter is not available, a dropout ratio of 95 % applies for overcurrent and of 105 % for undercur-
rent functionality.
Minimum absolute dropout differential
Protection-class current transformer 15 mA sec. (I
rated
= 1 A) or
75 mA sec. (I
rated
= 5 A)
Instrument current transformer 0.5 mA sec. (I
rated
= 1 A) or
2.5 mA sec. (I
rated
= 5 A)
Technical Data
11.11 Directional Overcurrent Protection, Ground
SIPROTEC 5, High-Voltage Bay Controller, Manual 1155
C53000-G5040-C015-A, Edition 05.2018

Siemens SIPROTEC 5 Specifications

General

Series	SIPROTEC 5
Communication Protocols	IEC 61850, DNP3, Modbus
Cybersecurity	Role-based access control, secure communication
Modular Design	Yes
Hardware Redundancy	Optional
Operating Temperature	-25°C to +70°C
Digital Inputs	Configurable, number depends on I/O modules
Digital Outputs	Configurable, number depends on I/O modules
Analog Inputs	Configurable, number depends on I/O modules
Current Transformer Inputs	Configurable, number depends on I/O modules
Voltage Transformer Inputs	Configurable, number depends on I/O modules
Time Synchronization	IRIG-B, SNTP, PTP
Protection Functions	Overcurrent, Differential, Distance, Over/Under Voltage, Frequency
Housing	19-inch Rack Mount
Dimensions	Depends on module configuration
Weight	Depends on module configuration
Voltage Input	24V DC, 48V DC, 110V DC, 125V DC, 220V DC, 250V DC