37
The ED2.0 board provides access through KM1003 for discharging the Storage Unit capacitors.
Make sure the ED2.0 Control Board Power is removed before attempting to discharge the capac-
itors.
PROCEDURE:
A 10 kOhm capacitor discharge resistor is mounted on the circuit board. Discharging is done by
jumpering KM1003 pins 4 and 5. The time constant is 33 minutes. An external resistor can be
used for quicker discharging, but the discharge current should be restricted to 10 A maximum.
This means that no lower than 10 Ohms external resistance should be used to perform capacitor
discharging. In this case an external 10 Ohm, 25 watt resistor can be connected to KM1003 Pins
4 and 6. Approximately 30 seconds is needed to discharge the capacitors using the 10 Ohm
external resistor.
6.2 Capacitor Life
The 0.1 Farad Electrolytic capacitors are designed to be operated in the temperature range of -
40°F to 185°F. The End of Life corresponds to the point at which the capacitance decreases by
20% or more.
It is recommended that replacement of capacitors be performed every 15 years for tropical cli-
mates and 20 years for an average yearly temperature (in the outdoor breaker enclosure) of less
than 122°F.
6.3 Breaker Ready / Not Ready Binary Output Contacts and Ready Light Status
CIRCUIT BREAKER POSITION
CONDITION
CLOSE
OPEN
Capacitor Energy sufficient
Ready LED:
on
Ready LED:
on
For O-CO operations
Ready contact:
closed
Ready contact:
closed
Not ready contact:
opened
Not ready contact:
opened
Capacitor Energy sufficient for
Ready LED:
blinking
Ready LED:
blinking
CO operations
Ready contact:
closed
Ready contact:
closed
Not ready contact:
opened
Not ready contact:
opened
Capacitor Energy sufficient for
Ready LED:
blinking
Ready LED:
off
O operations
Ready contact:
closed
Ready contact:
opened
Not ready contact:
opened
Not ready contact:
closed
Capacitor Energy insufficient for
Ready LED:
off
Ready LED:
off
any operations
Ready contact:
opened
Ready contact:
opened
Not ready contact:
closed
Not ready contact:
closed
Close Coil continuity not right
Ready LED:
blinking
Ready LED:
off
Ready contact:
closed
Ready contact:
opened
Not ready contact:
opened
Not ready contact:
closed
Open Coil continuity not right
Ready LED:
off
Ready LED:
off
Ready contact:
opened
Ready contact:
opened
Not ready contact:
closed
Not ready contact:
closed
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 ...