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1.0 OVERVIEW
The ED2.0 electronic control board is comprised of a Power Supply Recharge Unit, Control Unit,
and FET Switching circuit which connects the Storage Unit Capacitors to the Magnetic Actuator
coils.
The power supply recharge circuitry adapts whatever input voltage, within the specified range
(Section 2.0), is supplied to maintain an 80 V charge voltage across the capacitors. The Control
Unit monitors binary inputs and outputs, hardware and software configurations, position sensors,
capacitor charge, and switches the FET circuit to connect the capacitor voltage to the Magnetic
Actuator coils following an open or close command.
The Capacitor Storage Unit consists of two 0.1 farad Aluminum Electrolytic capacitors connected
in parallel to provide a total capacitance of 0.2 farad on the 15 kV rating. The Capacitor Storage
Unit consists of three 0.1 farad Aluminum Electrolytic capacitors connected in parallel to provide
a total capacitance of 0.3 farad on the 27 kV rating. The energy stored is approximately 640
Joules on 15 kV and 960 Joules on 27 kV. When called to energize the Magnetic Actuator coils,
the capacitors will deliver a peak current of approximately 35 A and a pulse width of 45 millisec-
onds for opening operations and 60 milliseconds for closing operations.
The ED2.0, with external circuitry, system Block Diagram is given in Illustration 1 below.
ILLUSTRATION 1 – ELECTRICAL SYSTEM BLOCK DIAGRAM
Summary of Contents for R-MAG
Page 12: ...Figure 3 Interrupter Assembly 15 5 kV 1250 A 12 ...
Page 13: ...Figure 4 Interrupter Assembly 15 5 kV 2000 A 13 ...
Page 14: ...Figure 5 Interrupter Assembly 15 5 kV 3000 A 3700 FA 14 ...
Page 15: ...Figure 6 Interrupter Assembly 27 kV 1250 A 15 ...
Page 16: ...Figure 7 Interrupter Assembly 27 kV 2000 A 16 ...
Page 19: ...19 Figure 11 High Voltage Cabinet Layout 15 5 and 27 kV ...
Page 20: ...20 Figure 12 Typical Schematic Diagram ...
Page 21: ...Figure 13 Standard ED2 0 Circuit Board 21 ...
Page 22: ...22 Figure 14 Typical Outline 15 5 kV 1250 A ...
Page 23: ...23 Figure 15 Typical Outline 15 5 kV 2000 3000 3700 A and 27 kV 1250 2000 A ...
Page 40: ...40 9 0 TROUBLESHOOTING FLOWCHARTS ILLUSTRATION 5 READY LED CONTINUALLY FLASHING ...
Page 41: ...41 ILLUSTRATION 6 READY LED OFF ...
Page 42: ...42 ILLUSTRATION 7 CB WILL EITHER NOT OPEN OR CLOSE ...
Page 50: ...NOTES 50 ...
Page 51: ...NOTES 51 ...