Ampcontrol OCS - SPECIFICATIONS; Protection Element Specifications

Ampcontrol Pty Ltd – ABN 28 000 915 542
OCS USER MANUAL
MAG-182 Version 5 – FEB/2020
Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version
Page 49 of 72
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11 SPECIFICATIONS
11.1 Cassette Specifications
General
Nominal System Voltage
Up to 3.3kV
Continuous Current Rating
Up to 500A (Thermal)
Protection Relay
Outlet Cassette Protection Element
Plug-In Capability
Yes
11.2 Protection Element Specifications
I.S. Parameters
Combined Phase and Pilot
RDX Port
RTX
Uo: 28.0V
Uo: 17.3V
Ui: 28.0V
Io: 322mA
Io: 756mA
Ci: 18.8nF
Po: 2.25W
Po: 3.09W
Li: nil
Co: 3.72μF
Co: 9.05μF
Ci: 18.8nF
Lo: 816μH
Lo: 4.5mH
L/R: 134μH/Ohm
General
Temperature Range
0°C < Ta < 60°C
Auxiliary Supply Voltage
24 VDC ± 20%, 30 W
Sys. Phase-Phase Voltage
1100V ± 20%, 3.3kV ± 20%
Contact Ratings
110VAC 20A, 1000VA, Power Factor 0.4
AS/NZS2081:2011 Protection Functions
Earth Leakage
(Standard OCS Protection Element Only)
Trip Settings +/-10%
100mA, 150mA, 200mA, 250mA, 300mA, 350mA, 400mA, 450mA,
500mA
Trip Time +0% -20%
Inst., 50ms, 75ms, 100ms, 150ms, 200ms, 250ms, 300ms, 350ms,
400ms, 450ms, 500ms
CT Failure
4.5s