EasyManuals Logo

Siemens SIPROTEC 4 7SJ61 User Manual

Siemens SIPROTEC 4 7SJ61
456 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #44 background imageLoading...
Page #44 background image
Setting Notes
Definition of Nominal Rated Values
At address 1102 FullScaleCurr., the primary reference current (phase) of the protected equipment is
entered (e.g. motors). If this reference variable matches the primary value of the current transformer, it is
equivalent to the setting at Address 204 (Section 2.1.3.2 Setting Notes). They are generally used to show
values as a percentage of full scale.
Recognition of Running Condition (only for Motors)
When the configured current value at Address 1107 I MOTOR START is exceeded, this will be interpreted as
motor starting. This parameter is used by the start-up time monitoring and overload protection functions.
For this setting the following should be considered:
•
A setting must be selected that is lower than the actual motor start-up current under all load and voltage
conditions.
•
During motor start-up the thermal replica of the overload protection is "frozen", i.e. kept at a constant
level. This threshold should not be set unnecessarily low since it limits the operating range of the over-
load protection for high currents during operation.
Settings
The table indicates region-specific presettings. Column C (configuration) indicates the corresponding secon-
dary nominal current of the current transformer.
Addr.
Parameter C Setting Options Default Setting Comments
1102 FullScaleCurr. 10 .. 50000 A 100 A Measurem:FullScaleCur-
rent(Equipm.rating)
1107 I MOTOR START 1A 0.40 .. 10.00 A 2.50 A Motor Start Current (Block
49, Start 48)
5A 2.00 .. 50.00 A 12.50 A
1114A Op.I meas.<1% NO
YES
NO Operational current meas-
urement < 1%
Information List
No.
Information Type of
Informa-
tion
Comments
126 ProtON/OFF IntSP Protection ON/OFF (via system port)
356 >Manual Close SP >Manual close signal
501 Relay PICKUP OUT Relay PICKUP
511 Relay TRIP OUT Relay GENERAL TRIP command
533 Ia = VI Primary fault current Ia
534 Ib = VI Primary fault current Ib
535 Ic = VI Primary fault current Ic
561 Man.Clos.Detect OUT Manual close signal detected
2720 >Enable ANSI#-2 SP >Enable 50/67-(N)-2 (override 79 blk)
4601 >52-a SP >52-a contact (OPEN, if bkr is open)
4602 >52-b SP >52-b contact (OPEN, if bkr is closed)
16019 >52 Wear start SP >52 Breaker Wear Start Criteria
16020 52 WearSet.fail OUT 52 Wear blocked by Time Setting Failure
16027 52WL.blk I PErr OUT 52 Breaker Wear Logic blk Ir-CB>=Isc-CB
16028 52WL.blk n PErr OUT 52 Breaker W.Log.blk SwCyc.Isc>=SwCyc.Ir
2.1.6.2
2.1.6.3
2.1.6.4
Functions
2.1 General
44 SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016

Table of Contents

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Siemens SIPROTEC 4 7SJ61 and is the answer not in the manual?

Siemens SIPROTEC 4 7SJ61 Specifications

General IconGeneral
BrandSiemens
ModelSIPROTEC 4 7SJ61
CategoryRelays
LanguageEnglish

Related product manuals