Micro Hydro Turbine - Revision history

Lsanten at 17:03, 2 August 2022

2022-08-02T17:03:34Z

Solomondg: Added information about the motor itself.

2021-01-30T06:24:53Z

Added information about the motor itself.

Lsanten at 16:57, 30 November 2020

2020-11-30T16:57:26Z

Lsanten at 16:46, 30 November 2020

2020-11-30T16:46:32Z

Magic: /* Maintenance */

2020-11-25T00:02:56Z

Maintenance

Magic at 00:02, 25 November 2020

2020-11-25T00:02:24Z

Magic: /* Maintenance */

2020-11-24T23:59:43Z

Maintenance

Kgoldstein at 15:48, 11 November 2020

2020-11-11T15:48:57Z

Kgoldstein at 15:36, 11 November 2020

2020-11-11T15:36:36Z

Kgoldstein at 15:35, 11 November 2020

2020-11-11T15:35:52Z

@@ Line 20: / Line 20: @@
 ## How to flash the hydro generator
-Note: We originally believed the generator to be a self-excited asynchronous generator (SEIG), which depends on residual magnetism to begin generating. The following section was written with this assumption:
+Note: We originally believed the generator to be a self-excited asynchronous generator (SEIG), which depends on residual magnetism to begin generating. The following section was written with this assumption. However, this is not correct! The generator has permanent magnets. For this reason, please ignore this section:
 You have to flash the magnetic field of the generator if it loses its magnetic field. Residual magnetism in the generator exciter field allows the generator to build up voltage during start-up. This magnetism is sometimes lost due to shelf time or improper operation, among other reasons. Restoring this residual magnetism is possible and is sometimes referred to as "flashing the exciter field". [^flash-batteries]

@@ Line 1: / Line 1: @@
 The Micro Hydro Turbine system outputs around 60-110 W all day long. We currently don't have any accurate information on its original efficiency, head, or other characteristics. Please update this section and the micro-hydro page if you know more.
 # Maintenance and troubleshooting
-The micro-hydro system uses a brushless generator that luckily doesn't require any maintenance - _as far as we know_.
+If you encounter no or low wattage output, the water bucket could be covered with leaves or the micro-hydro's brushless generator could have lost its magnetism. Only a few leaves on the mesh that sits on the bucket can drastically reduce the system's performance. The water bucket next to the water reservoir needs to be cleaned once a week.
-If you encounter no or low wattage output, the water bucket could be covered with leaves or the micro-hydro's brushless generator could have lost its magnetism. Only a few leaves on the mesh that sits on the bucket can drastically reduce the system's performance. The water bucket next to the water reservoir needs to be cleaned once a week.
+Note: We originally believed the generator to be a self-excited asynchronous generator (SEIG), which depends on residual magnetism to begin generating. The following paragraph was written with this assumption:
 The brushless generator loses its magnetism if the generator is stopped with a load on the system or spins for a long time while disconnected from the batteries. Therefore, it is recommended to disconnect the wires from the batteries before closing the main valve to stop the generator. If the system doesn't output energy even though it is spinning and connected, try to flash the magnetic field of the generator using the guidelines below.
 ## How to flash the hydro generator
 You have to flash the magnetic field of the generator if it loses its magnetic field. Residual magnetism in the generator exciter field allows the generator to build up voltage during start-up. This magnetism is sometimes lost due to shelf time or improper operation, among other reasons. Restoring this residual magnetism is possible and is sometimes referred to as "flashing the exciter field". [^flash-batteries]

@@ Line 1: / Line 1: @@
 The Micro Hydro Turbine system outputs around 60-110 W all day long. We currently don't have any accurate information on its original efficiency, head, or other characteristics. Please update this section and the micro-hydro page if you know more.
-# Maintenance
+# Maintenance and troubleshooting
 ## How to flash the hydro generator
 You have to flash the magnetic field of the generator if it loses its magnetic field. Residual magnetism in the generator exciter field allows the generator to build up voltage during start-up. This magnetism is sometimes lost due to shelf time or improper operation, among other reasons. Restoring this residual magnetism is possible and is sometimes referred to as "flashing the exciter field". [^flash-batteries]
 __Step 1__ [^flash-2] </br>
@@ Line 33: / Line 31: @@
 Press the trigger switch of the cordless drill, so that it spins the chuck of the corded drill. The corded drill acts as a small generator to feed current into the windings of the larger generator to magnetize the field and force it to start working. When this happens, the corded drill will start fighting against the cordless drill.
 # References

@@ Line 3: / Line 3: @@
 # Maintenance
-https://www.hunker.com/13403116/how-to-flash-the-field-of-a-brushless-generator
+## How to flash the hydro generator
-http://www.dieselduck.info/machine/03%20electricity/flashing_generator.htm
+You have to flash the magnetic field of the generator if it loses its magnetic field. Residual magnetism in the generator exciter field allows the generator to build up voltage during start-up. This magnetism is sometimes lost due to shelf time or improper operation, among other reasons. Restoring this residual magnetism is possible and is sometimes referred to as "flashing the exciter field". [^flash-batteries]
-http://www.jencin.com/Fixing.htm
+Furthermore, we could get a flashing module to automatically flash the generator. Another option is to use a drill to excite the magnetic field again.[^flash-1]
-Step 1
+- https://www.hunker.com/13403116/how-to-flash-the-field-of-a-brushless-generator
 Start the generator. Check the circuit breakers. Reset them if they are tripped.
-Step 2
+__Step 2__ </br>
 Insert the steel rod into the chuck of the corded drill. Tighten the chuck.
-Step 3
+__Step 3__ </br>
 Insert the other end of the steel rod into the cordless drill. Tighten the chuck.
-Step 4
+__Step 4__ </br>
 Plug the corded drill into the generator. Make sure both drills are set for forward (clockwise as viewed from the handle) rotation.
-Step 5
+__Step 5__ </br>
 Hold both drills tightly. Press the trigger switch of the corded drill.
-Step 6
+__Step 6__ </br>
 # References
-[^flash-batteries]: http://www.dieselduck.info/machine/03%20electricity/flashing_generator.htm</br>
+[^flash-batteries]:http://www.dieselduck.info/machine/03%20electricity/flashing_generator.htm
-[^flush-1]: https://www.ehow.co.uk/how_7987906_flash-field-brushless-generator.html

← Older revision		Revision as of 00:02, 25 November 2020
Line 38:		Line 38:

	Press the trigger switch of the cordless drill, so that it spins the chuck of the corded drill. The corded drill acts as a small generator to feed current into the windings of the larger generator to magnetize the field and force it to start working. When this happens, the corded drill will start fighting against the cordless drill.		Press the trigger switch of the cordless drill, so that it spins the chuck of the corded drill. The corded drill acts as a small generator to feed current into the windings of the larger generator to magnetize the field and force it to start working. When this happens, the corded drill will start fighting against the cordless drill.
		+
		+	(https://www.hunker.com/13403116/how-to-flash-the-field-of-a-brushless-generator)

	# References		# References

← Older revision		Revision as of 23:59, 24 November 2020
Line 13:		Line 13:
	http://www.jencin.com/Fixing.htm		http://www.jencin.com/Fixing.htm

		+	## How to flash the hydro generator
		+
		+	Plug in an electric drill into the generator receptacle.
		+
		+	If the drill is reversible, move the direction switch to the forward position.
		+
		+	Start the generator.
		+
		+	While depressing the trigger on the drill, spin the drill chuck in reverse direction. This will excite the field and the generator will now produce electricity. If spinning the chuck one direction does not work, try spinning the chuck in the other direction as you may have the reverse switch positioned backward. (http://www.jencin.com/Fixing.htm)

	# References		# References

← Older revision		Revision as of 15:36, 11 November 2020
Line 1:		Line 1:
−	The [[Micro Hydro Turbine] system outputs around 60-110 W all day long. We currently don't have any accurate information on its original efficiency, head, or other characteristics. Please update this section and the micro-hydro page if you know more.	+	The Micro Hydro Turbine system outputs around 60-110 W all day long. We currently don't have any accurate information on its original efficiency, head, or other characteristics. Please update this section and the micro-hydro page if you know more.

	# Maintenance		# Maintenance

← Older revision		Revision as of 15:35, 11 November 2020
Line 1:		Line 1:
−	---	+	The [[Micro Hydro Turbine] system outputs around 60-110 W all day long. We currently don't have any accurate information on its original efficiency, head, or other characteristics. Please update this section and the micro-hydro page if you know more.
		+
		+	# Maintenance
		+
		+	You have to flash the magnetic field of the generator if it looses its magnetic field. Residual magnetism in the generator exciter field allows the generator to build up voltage during start-up. This magnetism is sometimes lost due to shelf time or improper operation, among other reasons. Restoring this residual magnetism is possible and is sometimes referred to as "flashing the exciter field". [^flash-batteries]
		+
		+	https://www.hunker.com/13403116/how-to-flash-the-field-of-a-brushless-generator
		+
		+	http://www.dieselduck.info/machine/03%20electricity/flashing_generator.htm
		+
		+	http://www.jencin.com/Fixing.htm
		+
		+
		+	# References
		+
		+	[^flash-batteries]: http://www.dieselduck.info/machine/03%20electricity/flashing_generator.htm