Ups Inverter Connection for Computer!
Automatic UPS / Inverter Connections
In case of emergency breakdown when utility power is not available from the power house, we may use automatic inverter / UPS and batteries to connect the power without interruption.
We will show two basic UPS / Inverter with batteries connection to the home distribution board.
Auto UPS / Inverter with Two Wires
Automatic USP / Inverter Wiring with One Live Wire
Note: To be in safe mode, use 6 AWG (7/064″ or 16mm2) cable and wire size to connect the UPS to the main panel board.
Related Post: How to Connect a Portable Generator to the Home Supply – 4 Methods
Automatic UPS / Inverter Wiring with two Wires.
No rocket science here. Just connect the outgoing Neutral and Live wires to the UPS. Now connect the two outgoing Neutral and Phase wires from UPS / Inverter (As output) to the appliances as shown in fig 1.
UPS / Inverter Wiring with Single Additional Live Wire
As a basic, we know that each load points should be connected through Live (Phase) and Neutral wire to operate normally. In case below, we have already connected the Phase & Neutral (from Power house to the utility pole & Distribution board then) to each electrical appliance i.e. Fans, Light points etc. That’s what we do in our distribution board for home wiring.
Related Electrical Wiring Tutorial: UPS/Inverter Wiring Diagram With Auto & Manual Changeover Switch System.
Now, according to the below UPS connection diagram, connect an extra wire (Phase) to those appliances where we have already connected Phase and Neutral wires from (Power house & DB) (i.e., two wire as phase (Live) as shown in the below fig). And no need to connect extra Neutral wire from UPS as it is already installed & connected before. In simple words, You only need a live wire to connect to the appliances as shown in fig 2. Now the quieten arises here “Why extra Phase wire and not a Neutral ? …Yes.. Read the following working and operation of the circuit to get the idea.
Working and Operation of UPS Connection
(1)When utility power is not available from power house
In this case, electric supply will continue through Phase wire (Output of UPS) which is connected to the batteries and UPS and then to electrical appliances (Note that Neutral is already connected). So the first one phase wire which has already connected before UPS installation (i.e. Live Wire from Main board to UPS) would be inactive because power supply is not available from power house. In this case, connected electrical appliances through the live wire from UPS / Inverter consume the stored electrical energy in the batteries without interruption.
Related Tutorials:
Three Phase Electrical Wiring Installation in Home – NEC & IEC
Three Phase Electrical Wiring Installation in a Multi-Story Building
(2) When power supply restores from power grid
Then power supply will continue through the Phase wire (Note that Neutral is already connected) which is connected to the UPS from main board (it will charge your battery as well) and then from UPS to connected electrical appliances. So the second one (phase or live wire) which is connected after UPS installation (i.e. One Live Wire from UPS) would be inactive because power supply is not available from UPS and batteries (Because it is Automatic UPS System).
The below fig 3 shows that how to connect a UPS / Inverter with batteries to the Main Distribution Unit for continues power supply in case of the utility power failure.
Ups Inverter Connection for Computer!
Automatic UPS / Inverter Connections
In case of emergency breakdown when utility power is not available from the power house, we may use automatic inverter / UPS and batteries to connect the power without interruption.
We will show two basic UPS / Inverter with batteries connection to the home distribution board.
Auto UPS / Inverter with Two Wires
Automatic USP / Inverter Wiring with One Live Wire
Note: To be in safe mode, use 6 AWG (7/064″ or 16mm2) cable and wire size to connect the UPS to the main panel board.
Related Post: How to Connect a Portable Generator to the Home Supply – 4 Methods
Automatic UPS / Inverter Wiring with two Wires.
No rocket science here. Just connect the outgoing Neutral and Live wires to the UPS. Now connect the two outgoing Neutral and Phase wires from UPS / Inverter (As output) to the appliances as shown in fig 1.
UPS / Inverter Wiring with Single Additional Live Wire
As a basic, we know that each load points should be connected through Live (Phase) and Neutral wire to operate normally. In case below, we have already connected the Phase & Neutral (from Power house to the utility pole & Distribution board then) to each electrical appliance i.e. Fans, Light points etc. That’s what we do in our distribution board for home wiring.
Related Electrical Wiring Tutorial: UPS/Inverter Wiring Diagram With Auto & Manual Changeover Switch System.
Now, according to the below UPS connection diagram, connect an extra wire (Phase) to those appliances where we have already connected Phase and Neutral wires from (Power house & DB) (i.e., two wire as phase (Live) as shown in the below fig). And no need to connect extra Neutral wire from UPS as it is already installed & connected before. In simple words, You only need a live wire to connect to the appliances as shown in fig 2. Now the quieten arises here “Why extra Phase wire and not a Neutral ? …Yes.. Read the following working and operation of the circuit to get the idea.
Working and Operation of UPS Connection
(1)When utility power is not available from power house
In this case, electric supply will continue through Phase wire (Output of UPS) which is connected to the batteries and UPS and then to electrical appliances (Note that Neutral is already connected). So the first one phase wire which has already connected before UPS installation (i.e. Live Wire from Main board to UPS) would be inactive because power supply is not available from power house. In this case, connected electrical appliances through the live wire from UPS / Inverter consume the stored electrical energy in the batteries without interruption.
Related Tutorials:
Three Phase Electrical Wiring Installation in Home – NEC & IEC
Three Phase Electrical Wiring Installation in a Multi-Story Building
(2) When power supply restores from power grid
Then power supply will continue through the Phase wire (Note that Neutral is already connected) which is connected to the UPS from main board (it will charge your battery as well) and then from UPS to connected electrical appliances. So the second one (phase or live wire) which is connected after UPS installation (i.e. One Live Wire from UPS) would be inactive because power supply is not available from UPS and batteries (Because it is Automatic UPS System).
The below fig 3 shows that how to connect a UPS / Inverter with batteries to the Main Distribution Unit for continues power supply in case of the utility power failure.
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