GE Mark VIe System Manual page 120

5.3.3 Supply Voltage
5.3.3.1 Line Variations
Mark VIe control equipment meets the requirements for Overvoltage Category II equipment (IEC 60664-1:2007) under the
Conditions for Compliance specified in this document.
Ac Supplies – Operating line variations of ±10%
IEEE STD 141-1993 defines the Equipment Terminal Voltage – Utilization voltage.
The above meets IEC 60204-1 2005, and exceeds IEEE STD 141-1993, and ANSI C84.1-1989.
Dc Supplies – Operating line variations of -30%, 10% or 140 V dc. This meets IEC 60204-1 2005.
5.3.3.2 Voltage Unbalance
Less than 2% of positive sequence component for negative sequence component
Less than 2% of positive sequence component for zero sequence components
This meets IEC 60204-1 2005 and IEEE STD 141-1993.
5.3.3.3 Harmonic Distortion Voltage Unbalance
Voltage: Less than 10% of total rms voltages between live conductors for 2nd through 5th harmonic
Additional 2% of total rms voltages between live conductors for sum of 6th through 30th harmonic
This meets IEC 60204-1 2005.
Current: The system specification is not per individual equipment
Less than 15% of maximum demand load current for harmonics less than 11
Less than 7% of maximum demand load current for harmonics between 11 and 17
Less than 6% of maximum demand load current for harmonics between 17 and 23
Less than 2.5% of maximum demand load current for harmonics between 23 and 35
The above meets IEEE STD 519 1992.
5.3.3.4 Frequency Variations
Frequency variation of ±5% when operating from ac supplies (20 Hz/sec slew rate)
This exceeds IEC 60204-1 2005.
5.3.3.5 Surge
Withstand 2 kV common mode, 1 kV differential mode
This meets IEC 61000-4-5 (ENV50142), and ANSI C62.41 (combination wave).
120 GEH-6721_Vol_I_BP GEH-6721_Vol_I Mark VIe and Mark VIeS Control Systems Volume I
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