What is Submersible Motor? Salient Features, Advantages & Application

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The submersible electric motors are the prime moves of an electric submersible pumping system. It is supplied with electrical power from surface via the cable and converts this into meaningful mechanical work. Submersible motors are generally squirrel cage type totally enclosed, wet type induction motor suitable for single phase, 230 V/3 phase, 415 volts, 50Hz supply, 2 pole 3000 RPM (Syn. speed) filled with pure drinking water. Dual seals and sand gaurds are provided for protection and to avoid contamination of outside bore well water.

Submersible Motor

There are different types of electric pumps submersible motor of 4”, 10” and 12”. Submersible motors are suitable to be immersed in well having diameter 4” and coupled to hydraulic submersible centrifugal pump with 4” coupling. The motors are designed to start at low voltage and worked in wide voltage fluctuation. It is available in rating of 0.37 kW to 2.2 kW.

What is Submersible Motor

Fig. 1: The submersible pump with motor assembly

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What is Anderson Bridge? Theory, Diagram, Derivation & Advantages

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Anderson bridge is used to measure inductance in terms of a standard capacitance (C). This method is applicable for precise measurement of inductance over a wide range of values, from micro henry to several henries. The Fig. 1. shows the circuit diagram of the bridge. The circuit has the following components.

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How to make PCB (Printed Circuit Board)? Components & Steps

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List of Components Needed for making PCB (Printed Circuit Board)

  1. Circuit diagram
  2. Components to be mounted
  3. Tracing paper and sketch pen
  4. Piece of thermocole
  5. Copper clad board and carbon paper
  6. Hacksaw
  7. File
  8. Emery paper
  9. Hard pencil
  10. Hand drill machines
  11. Drill bits (1/32)”, (l/8)”
  12. Drawing brush –
  13. White paint
  14. Razor
  15. Tray or dish
  16. Ferric chloride as etchant
  17. Hydrochloric acid as activator
  18. Turpentine oil.

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What is RLC bridge? Working, Diagram & Applications

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The RLC Bridge is the single bridge which can be used for measurement of all the three parameters viz., resistance, inductance and capacitance.

It consists of signal source (ac or dc) and a detector along with following inbuilt bridges:

  1. Wheatstone Bridge: For measurement of resistance.
  2. Maxwell’s or Hay Bridges: For measurement of inductance.
  3. De Sauty Bridge: For measurement of capacitance.

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