How To Wire As Well As Gather 3-Phase Motor Panels [Part#2]

How to Wire together with get together 3-Phase Motor Panels?
This article is a continuation of the previous article, entitled "Learning to Assemble Electric Motor Panels iii Phase, [Complete Guide] Part-1", if y'all convey non read Part-1 Articles, y'all should read first, earlier continuing the news inward this Part-2 Articles.

After diverse explanations nearly how to get together the Electric Motor Panel on Part-1, thence nosotros volition travail an event of how to brand a iii Phase Electric Motor Panel, every bit follows:


How to Wire together with get together 3-Phase Motor Panels Part#2 [Complete Guide]

This article is a continuation of the previous article How to Wire together with get together 3-Phase Motor Panels [Part#2]
How to wiring together with Install 3-phase Panel

Example: We volition travail to wiring a uncomplicated Panel for an Electro Motor 5.5 KW, 3Phase, 380Volt, amongst the organization Starting DOL Series. Wiring the motor using the Cable Tray.

Required Panel Components:
  • Panel Box Width 30cm x Height 40cm x 20cm Thickness
  • NYY iv x 1.5mm² Cable, for Cables from Panel to Motor (Length every bit needed)
  • 1.5mm NYAF cable (Red, Yellow, Black), for Power Cables within the Panel used for Phase R-S-T from MCCB to Magnetic Contactor, together with to Thermal Overload Relay (Length every bit needed)
  • NYAF cable 0.75mm², for wiring inward panels (length every bit needed)
  • MCCB 15A 3Pole
  • MCB 4A 1Pole
  • Magnetic Contactor LC1-D18 (or equivalent)
  • Thermal Overload Relay 7-9A
  • Pilot Lamp (Red together with Green)
  • Push Button (On together with Off)
  • Ampere Meter 100/5
  • CT 100/5
  • 1.5mm Skun Cable (As needed)
  • Heat Shrink (Red, Yellow, Black) As needed
  • Cable Wrapping (As needed)
  • Cable Ties (As Required)

Installation of Components
Install MCCB, Magnetic Contactor, Thermal Overload, MCB, within the Panel, past times making a hole inward the inner wall of the panel to house the bolt binder, for the installation of MCB together with Magnetic Contactor ask additional Rail Mounting, thence that the Components tin sack stick.

Arrange MCCB, Magnetic Contactor, Thermal Overload Parallel downward, piece MCB tin sack live installed adjacent to Magnetic contactor, together with conform the distance of each Component amongst Panel size.

Installation of components at panel door
Other Panel Components, such every bit the Pilot Lamp, Ampere Meter, Push Button, are installed inward the Door Panel.

Attach the Green together with Red Pilot Lamp parallel to the side at the bottom of the panel door, every bit a sign that Electro Motor is Run (Green) or Trip (Red).

Install the Push Button On together with Off parallel to the Pilot Lamp Run together with Trip.
Push push Green is a type of NO (Normally Opened) together with functions every bit a push to plough on the Motor Panel, piece the Red Push Button is a type of NC (Normally Closed) together with functions every bit a push to plough off the Motor Panel.

Wiring Panel Installation
After all the Components are installed inward the Panel, thence nosotros tin sack thence start assembling the wiring cables, See: Direct On Line (D.O.L) Wiring Diagram

First install the Neutral Cable using NYAF Cable 0.75mm², from the Source to ane of the Coil Magnetic Contactor Terminals (A1 or A2), thence connect to ane of the Red together with Green Pilot Lamp terminals.

Install the Phase cable for Wiring using 0.75mm² NYAF Cable from the MCB to lastly 95 together with 97 on Overload.

Remember: Terminals 95 together with 96 are NC (Normally Closed) which functions to drain electricity to the adjacent panel circuit, together with volition live interrupted when Overload occurs, together with terminals 97 together with 98 are NO (Normally Closed) which role when at that topographic point is overload (Overload) the menstruum of electricity volition menstruum towards the Trip sign lite (Red) thence that the Trip sign lite is on, if the Normal nation of this lastly is non connected.

Plug the cable from Terminal 98 on Overload to the ruby Pilot Lamp lastly (Trip), Plug the cable from Terminal 96 on Overload to ane of the terminals inward the Push Button Off (Red).

Plug the Cable from the other Terminal inward the Push Button Off (Red) towards ane of the lastly inward the Push Button On (Green), thence connect the cable to lastly fourteen (NO) on the Magnetic Contactor.

Remember: Magnetic Contactor used has several terminals, namely:
  • Terminal A1, A2 is a lastly for Coil Magnetic Contactor
  • Terminal 1, ii is NO (Normally Opened) which plant for Line 1 (Phase R) lines
  • Terminal 3, iv is NO (Normally Opened) which plant for Line ii (Phase S) lines
  • Terminal 5, six is NO (Normally Opened) that plant for Line iii lines (Phase T)
  • Terminal 13, fourteen is NO (Normally Opened) which functions for Locking, when Terminal A1 together with A2 are given a voltage, thence lastly 13, fourteen volition live connected together with drain the Voltage to the Coil (Lock) thence that the Magnetic Contactor remains connected, fifty-fifty though the On Button has been removed .
  • Terminal 21, 22 is NC (Normally Closed), inward the DOL series, this lastly is non used.

Magnetic Contactor Working Principles:
When at that topographic point is no Voltage beingness supplied to the Coil, the Magnetic Contactor is non working (Normal), All Terminals that are NO (Normally Opened) are non connected (Open), otherwise All Terminals that are NC (Normally Closed) are inward Connected nation (Closed).
When Terminals A1 together with A2 (Coil) are given Electricity Voltage (according to the specifications of the Voltage on Magnetic Contactor), thence Magnetic Contactor volition work, All Terminals that are NO (Normally Opened) volition live Connected, together with vice versa All Terminals are NC (Normally Closed ) volition live disconnected.

Plug the cable from Terminal thirteen on the Magnetic Contactor to the Coil lastly (A1 or A2, if the lastly A1 has been installed Neutral cable, thence plug the cable inward lastly A2, together with vice versa)

Plug the Cable from the other Terminal inward the Push Button On (Green) to the Coil Terminal (the Terminal is the same every bit the cable from lastly thirteen on the Magnetic contactor, thence connect this cable to the lastly inward the Pilot Lamp On (Green).

After all Wiring Cables are installed correctly, thence cut down together with necktie amongst Cable Ties, thence tin sack live wrapped amongst Wrapping Band, thence that the Cable is to a greater extent than Neat together with protected.

And, usage the Skun Cable for each cable installation at the terminals on the Panel Component, thence that it is installed properly together with neatly

Installation of Power Cables
After all Wiring Cables are installed properly together with neatly, thence nosotros tin sack start installing iii Phase Power (Line) Cables (R-S-T).

Install the R-S-T Cable from the MCCB Output Terminal towards Terminal 1,3,5 inward Magnetic Contactor, (Previously insert CT inward ane of the Phase Cables, together with attach the cable from CT to Ampere Meter).

Install the R-S-T Cable from Terminal 2,4,6 on the Magnetic Contactor to Terminal 1,3,5 inward the Thermal Overload Relay.

Plug the Cable from Terminal 2,4,6 inward the Thermal Overload Relay to Electro Motor.

Make certain all Power Cables are installed using Skun Cable, together with equipped amongst Heat Shrink according to the Color of each Cable.

After all cables are properly installed, together with the lastly bolts convey been tightly locked / firmly, thence nosotros tin sack travail the Panel's surgical operation start past times giving a 220 volt voltage, (Phase cable is installed on the MCB, together with the Neutral Cable connecter from the Source to the neutral cable Wiring Panel).

Testing:
Press the On Button, the Magnetic Contactor plant (connected), together with the On (Green) Light turns on
Press the Off Button, the Magnetic Contactor is disconnected, together with the On lite goes out.
Try Pressing Trip on the Thermal Overload Relay manually, thence the Trip Light (Red) lights up, together with Even though the On Button is pressed the Panel does non work.
Make certain at that topographic point are no cables coming into contact betwixt the dissimilar phases, or betwixt the phases together with neutrals.

After everything is confirmed to live right together with safe, thence nosotros tin sack thence connect the Main Power Cable (R-S-T) from the source to the MCCB Input Terminal.

Prioritize Safety, Make certain the Power Source has been disconnected, at that topographic point is no to a greater extent than voltage, Install Tag-Out, together with Lock MCCB from the Source earlier connecting the Power Cable from the Source to the Panel, together with this piece of job must live done past times a competent Electrician.

Explanation of How to Assemble Electric Motor Panels is the simplest, thence nosotros tin sack larn how to get together to a greater extent than complex panels, such every bit Motor Panels amongst Star-Delta Series, Auto Transformer Series, together with Other Panel Circuits.

To live able to original the How to Assemble Panels, the basic matter nosotros actually convey to original is the agreement of NO (Normally Opened) together with NC (Normally Closed) piece of job systems, because from the working principles of NO together with NC, nosotros tin sack railroad train them into a multifariousness of panel applications.



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