Siemens ISGS SG8158-00 - Manual (Page 10)

Introduction
4 Siemens Energy & Automation, Inc.
1.5 Technical Specifications
Applicable Standards
ANSI / IEEE C37.90-1989 IEEE Standard Relays and Relay
Systems Associated With Elec-
tric Power Apparatus
IEC 255-4 Single Input Energizing Quantity
Measuring Relays With Depen-
dent or Independent Time
General Technical Data
Operating ambient temperature -20°C to +55°C (-4°F to +131°F)
Storage temperature -40°Cto+75°C (-40°F to+167°F)
Relative humidity The average relative humidity
may be up to 55% outside of
enclosure for temperatures up to
40°C, with excursions up to
95% for a maximum of 96
hours, without condensation.
Altitude < 1500 meters
Frequency 50 Hz or 60 Hz, software select-
able
Power Supply AC/DC
DC Rated voltages 48 V (19-56 V),
125 V (46-144 V),
250 V (92-288 V)
Permissible ripple <10%
AC Rated voltage 120 V rms (102-132 V, 50-60 Hz)
Power consumption <15W
Input Circuit Ratings
Rated current (In) 1 or 5 A, independently for
phase and ground inputs
Maximum input current 4 x In continuous
10 x In for 10 s
100 x In for 1 s
CT burden <0.1 VA for 1A CT
<0.5 VA for 5A CT
Rated voltage (Vn) 115 or 120 volts
Maximum input voltage for measurement: 1.25 x Vn
MOV protected at: 2.5 x Vn
VT burden 150k Ω
Trip Circuit
Tripping relays 2 or 3
Contact configuration
(Trip 1, Trip 2, Trip 3)
Contact rating IEEE/ANSI C37.90-1989, Sec-
tion 6.7 (Make and carry 30 A for
at least 2000 duty cycles, resis-
tive load, interrupted by indepen-
dent means. Duty cycle:
200 ms on, 15 s off, 250 V)
Trip Circuit (continued)
Binary output contacts
(BO1 and BO2)
2 x N.O. (independent,
not rated for tripping)
Maximum switching voltage 300 VDC, 250 VAC
Maximum switching current 8 A
Maximum switching capac-
ity (for currents not inter-
rupted by independent
means)
DC: voltage dependent;
50 W at V ≥ 70 VDC
100 W at 48 VDC
270 W at 35 VDC
AC: 2000 VA
Trip source monitor 215 mA for 48 VDC supply
63 mA for 125 VDC supply
36 mA for 250 VDC supply
Source quality checked approxi-
mately every 4 minutes
Isolation
Applicable standards ANSI/IEEE C37.90-1989,
IEC 255-4, IEC 255-5
Between all circuits (except
communications interfaces, ana-
log inputs and outputs) and
ground, and between these cir-
cuits.
2 kV rms, 50/60 Hz, 1 minute
Between communications inter-
faces, analog inputs and outputs
and ground, and between these
circuits
500 VDC, 1 minute
Across open contacts rated for
tripping
1500 V rms, 50/60 Hz, 1 minute
Across open contacts not rated
for tripping
1000 V rms, 50/60 Hz, 1 minute
Impulse
Applicable standards IEC 255-4, IEC 255-5
For all circuits (except communi-
cations interfaces, analog
inputs and outputs), transverse
and common mode
class 3, 5 kV, 1.2/50 µ s, 0.5 J
RS-485 and local communica-
tions interfaces, analog I/Os
class 1, 0 kV
Electrostatic Discharge
Applicable standards IEC 801-2 (test without cover)
Contact discharge class 3, 6 kV
Air discharge class 3, 8 kV
Surge Withstand Capability
Applicable standards ANSI/IEEE C37.90-1989,
IEC 255-4, IEC 255-22-1,
IEC 41B (CO) 53
For all circuits except communi-
cations interfaces, analog
inputs and outputs
ANSI: Oscillatory and Fast Tran-
sient, transverse and common
mode
IEC: Class 3, 2.5 kV
For RS-485 interface, analog
inputs and outputs
IEC: Class 1, 0.5 kV
Electromagnetic Field
Applicable standards ANSI/IEEE C37.90.2
All six faces 10 V/m (+100%, -0%),
2-1000 MHz
1
isv3o_1.bk : isv3oint.frm Page 4 Wednesday, August 7, 1996 10:51 AM