final report of internship EWB Rwanda Mukindo water project by Ntambara Sylvestre Owen Berbason
this report shows a brief and summarised details of the project done at Gisagara in Mukindo sector and it is entitled as MUKINDO WATER PROJECT and it was implemented by EWB Rwanda an partnership with EWB Quebec and it where i did my intership and more of this documenyt is all about the solar power for provision of electric energy to pump the water from down upto hill.
this report shows a brief and summarised details of the project done at Gisagara in Mukindo sector and it is entitled as MUKINDO WATER PROJECT and it was implemented by EWB Rwanda an partnership with EWB Quebec and it where i did my intership and more of this documenyt is all about the solar power for provision of electric energy to pump the water from down upto hill.
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3. The deviation between the phases should be within 10 %. If the deviation is too high, the<br />
reason is likely a damaged submersible cable or a faulty cable splice.<br />
4. The absolute value is made up <strong>of</strong> the resistance <strong>of</strong> the motor winding and the submersible<br />
cable. The resistance <strong>of</strong> the submersible cable depends on its length and size. For copper cable,<br />
the values <strong>of</strong> the table below,<br />
“Table 7: Motor cable resistance”, can be used as a rough approximation.<br />
Table 7: Motor cable resistance<br />
Insulation resistance<br />
Use a Megohmmeter at 500 –1,000 V.<br />
Measure each phase to ground. Connect one test prod to the phase hold the other test prod to the<br />
pipe work, or if plastic pipes are used to the ground wire.<br />
If the insulation resistance is below 0.5 MΩ, the motor cable must be checked for damage.<br />
Assembly<br />
Preparation <strong>of</strong> the installation<br />
To lower the pumps into the borehole, a crane or hoist is required. You need also two clamps and<br />
ropes to lift the components.<br />
All parts must be strong enough to withstand the weight <strong>of</strong> the pump, the motor, the motor cable<br />
and the pipe system.<br />
It is also helpful to lower a pump dummy into the borehole before you lower the pump to make<br />
sure that the hole is completely free and the pump can slide into the hole without collisions.<br />
Installation<br />
To connect the pump end and the motor you must set the motor with the clamps in the bore hole<br />
to fix it, cf. figure below, “Figure 17: Motor in borehole”.<br />
Figure 17: Motor in borehole
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