Settings; Information - Siemens SIPROTEC 7SJ62 Instruction Manual

6.1.3.1

Settings

Addr. Setting
1101 V PRIMARY OP.
1102 I PRIMARY OP.
1103 RG/RL Ratio
1104 XG/XL Ratio
1105 x'
1106 x'
1107 I MOTOR START
6.1.3.2

Information

F# LCD-Text
533 IA =
534 IB =
535 IC =
501 Device Pickup
511 Device Trip
126 Prot ON/OFF
561 Man.Clos.Detect
356 > Manual Close
2720 > Enable ANSI#-2
4601 > 52-a
4602 > 52-b
7SJ62 Manual
C53000-G1140-C121-1
• Because the thermal cure of the overload protection is "frozen" (held constant) dur-
ing motor start-up, the setting must be high enough to allow operation of the over-
load protection at higher load current levels.
In the list below, the setting ranges and default setting values are for a device with a
nominal current rating I
N
the device with primary values
For a nominal current rating I
− For the pickup current (I MOTOR START) , divide the Setting Options values and
default setting values by 5.
− For the Ground resistance and reactance ratios, multiply Setting Range and Setting
Increments by 5!
Setting Options
0.10 ~ 400.00 kV
10 ~ 50,000 A
0.33 ~ 7.00
0.33 ~ 7.00
Ω
1
0.002 ~ 2.000 /mile )
0.001 ~ 1.243 Ω/km
1
)
3.00 ~ 50.00 A
1
) depending of the ordering code
Primary interrupted current Phase A
Primary interrupted current Phase B
Primary interrupted current Phase C
Pickup (protection)
device trip (general)
Protection On/Off (IEC60870-5-103)
Manual Close Detection (Impulse)
Manual Close
> Enable 50/67-(N)-2 (override 79 blk)
contact is open if breaker is open
contact is open if breaker is closed
= 5 A. Consider the current transformer ratios when setting
= 1 A:
N
Default Setting
12.00 kV Nominal operating voltage of primary
equipment
100 A Nominal operating current of primary
equipment
1.00 Ground resistance ratio
1.00 Ground reactance ratio
Ω
1
0.200 /mile ) Line reactance value in secondary
ohms
0.124 Ω/km
1 Line reactance value in secondary
)
ohms
1
Motor start-up current
12.50 A )
Comment
Functions
Comments
6-17