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Main network or
house
L2
distribution
board
Generator AC
METERS
Main ballast
load
Supplementary
ballast load
4. Connect the user load cables L1 and L2 between the control box and the house.
5. Connect the main and supplementary ballast loads to the control box as shown.
The combined (total) ballast load is rated 10-15% (maximum) higher than the
rated power output of the generator e.g. 11kW or 12kW for a 10kW generator.
The main ballast load will be approximately 7kW or 8kW (approx. 66%) while the
supplementary ballast load will be approximately 3kW or 4kW (approx. 33%).
The ballast loads will become hot, up to 100°C. To prevent injury and the risk of
fire, they must be installed in a safe place and preferably in an additional
enclosure.
6. Close the control box door. The system is now ready for its first operation.
OPERATION
1. Check that the power conduit and forebay are free of debris.
2. Ensure that the turbine is shut down and that all supply lines are electrically dead.
The switch on the door of the control box must be in the 'off' position.
3. Fully open both the spear valve and gate valve. The gate valve is always opened
when the turbine is operating and is only closed when servicing or repairing the
turbine.
4. Fill the forebay and allow the water to flow freely into the penstock. The turbine
runner will rotate and spent water will flow out in front of the turbine stand (into
an escape drain). Once the water is flowing freely the electrical testing may begin.
ELC single phase- 20kW
Transformer
240V ~
24 V ~
L1
line
1
2
neutral
3
4
neutral to main ballast load
5
6
line to main ballast load
7
8
neutral to supp. ballast load
9
10
line to supp. ballast load
11
12
Connector
1
1
Pin
Pin
go to Triac 1
1
3
1
1
Pin
Pin
4
1
Pin
go to Triac 2
1
Pin
Heatsink
BTA26
600B
TRIAC 2
T1 T2 G
Heatsink
BTA26
600B
TRIAC 1
T1 T2 G
PowerPal™ T8 & T16 Turgo 10