Siemens SIPROTEC 7SJ62 Instruction Manual

Functions
6-597SJ62 Manual
C53000-G1140-C121-1
User Specified
Curves
If address  1172& was set to 8VHU'HILQHG3LFNXS&XUYH or 8VHU
'HILQHG3LFNXSDQG5HVHW&XUYH during configuration of the user-specified
curve option, a maximum of 20 value pairs (current and time) may be entered at ad-
dress  0RI387' to represent the time-current characteristic curve associated
with the 67N-TOC element. This option allows point-by-point entry of any desired
curve.
If address  was set to 8VHU'HILQHG3LFNXSDQG5HVHW&XUYH during
configuration of the user-specified curve option, additional value pairs (current and re-
set time) may be entered at address  to represent the reset curve associated with
the 67N-TOC element.
Current and time values are entered as multiples of the address  and  set-
tings. Therefore, it is recommended that addresses  and  be initially set to
 to simplify the calculation of these ratios. Once the curve is entered, the settings
at addresses  and  may be modified if necessary.
Upon delivery of the device, all time values are set at ∞, preventing pickup of the de-
vice from initiating a trip signal.
When entering user specified curve data, the same instructions apply as in Subsection
6.3.2.1 for the phase elements.
6.3.2.5 Settings for Directional Ground Overcurrent Protection
In the list below, the setting ranges and default setting values for the pickup currents
are for a device with a nominal current rating I
N
= 5 A. For a nominal current rating I
N
= 1 A, divide the Setting Options values and Default Setting values by 5. Consider the
current transformer ratios when setting the device with primary values.
Addr. LCD-Text Setting options Default Setting Comments Configuration
Definite Time Only IEC Curve ANSI Curve User Defined Pickup User def. Reset
1601 FCT 67N/67N–TOC ON
OFF
OFF Directional overcurrent
protection enabling
XXXXX
1602 67N–2 PICKUP 0.25 ~ 175.00 A 2.50 A Pickup setting of the 67N-2
element
XXXXX
1603 67N–2 DELAY 0.00 ~ 60.00 sec 0.10 sec Delay setting of the 67N-2
element
XXXXX
1604 67N–1 PICKUP 0.25 ~ 175.00 A 1.00 A Pickup setting of the 67N-1
element
XXXXX
1605 67N–1 DELAY 0.00 ~ 60.00 sec 0.50 sec Delay setting of the 67N-1
element
XXXXX
1607 67N–TOC PICKUP 0.50 ~ 20.00 A 1.00 A Pickup setting of the 67N-
TOC element
XXXX
1608 67N–TOC T– DIAL 0.05 ~ 3.20 sec 0.20 sec Time multiplier T IGp, User
Defined, IEC
XXX
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Siemens SIPROTEC 7SJ62 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SJ62
Category	Relays
Language	English