How to connect the transfer switch to 5, how to connect the transfer switch

Automatic transfer switch has manual, automatic, bypass and stop and other four gears, each gear corresponding to the wiring mode and the object of wiring is different, facing the switch, divided into left and right up and down four aspects, the back of the switch panel is the wiring place, first the left and right and up and down are divided into groups, through the line grouping mode to wiring. This requires one's own personal experience to understand the mystery.

Automatic transfer switches are plentiful and cheap. The function is to automatically switch to standby power when the mains power fails; When the mains power calls, the handover switch will automatically switch to the mains, make a bell alarm at the mains, and turn off the generator in time. If you want to ensure that the computer does not restart when switching, you also need to add a UPS (uninterruptible power supply) in front of the computer.

No, you'd better change the switch and choose a switch with a good capacity, preferably a switch with a two-way choice. The capacity of the front and rear wires should be appropriate. Do a good job of protective grounding

Isn't your toggle switch dual input, single output?

1. How to operate the universal transfer switch:

1. Use the handle to drive the hinge and cam.

Push the contacts on or off. Due to the different shapes of the cams, when the handle is in different positions, the contact fit is different, so as to achieve the purpose of converting the circuit.

2. Commonly used products are LW5 and LW6 series. LW5 series can control and below small capacity motors; The LW6 series can only control small capacity motors and below. When used for reversible operation control, reverse starting is only allowed after the motor has stopped.

LW5 series universal transfer switch can be divided into self-resetting according to the operation mode of the handle.

and self-positioning. The so-called self-resetting means that when the handle is toggled in a certain gear by hand, the handle will automatically return to its original position after the hand is released; Positioning, on the other hand, means that the handle is placed in a certain gear.

, it cannot automatically return to its original position and stop in that gear.

3. The operating position of the handle of the universal transfer switch is expressed by angle. The handle of different types of universal transfer switch has different contacts and circuit diagrams of universal transfer switches.

The graphic symbols in are shown in the following figure. However, since the opening and closing state of the contact is related to the position of the operating handle, in addition to drawing the contact graphic symbol in the circuit diagram, the relationship between the operating handle and the contact opening and closing state should also be drawn. In the figure, when the universal transfer switch is 45° to the left, contact -6 is closed, and contacts 7-8 are openedWhen hitting 0°, only contacts 5-6 are closed, and at 45° to the right, contacts 7-8 are closed, and the rest are open.

Second, how to wire the universal transfer switch

1. LW5D-16 CHINT.

The voltage transfer switch has a total of 12 contacts, facing the front of the switch, and divides the switch into four W positions: up, down, left, right, and left. The panel indication is 0 on the top, that is, neutral, AC on the left, AB on the right, and BC phase on the bottom. Behind the panel are the terminal blocks.

It is also divided into top and bottom, left and right. Let's talk about the left and right first.

2. The 6 terminals on the left side have been connected when they leave the factory, from front to back, respectively, they are up 1 and 3 for the first group, do phase A, up 5 and 7 for group 2, do phase B, up 9 and down 11 for group 3, do phase C. The first group of contacts in the order of the three voltage lines is connected to A, the second group of contacts is connected to B, and the third group is connected to C. Namely. , connected to ABC three-phase.

3. The 6 terminals on the right are separated from each other, but the front and rear terminals have been connected separately. That is, the first set of contacts on the top right is the second set of contacts below. That is, with the connected voltmeter.

These two sets of contacts are respectively connected to the voltage of the two wires of the voltmeter can be connected to these two points arbitrarily, and there is no order between these two points.

4. When the switch handle goes to indicate 0, all terminals are in the open circuit state, and no contacts are connected. When the switch handle turns to indicate AB phase, the 1 end point above the first row of A phase terminals on the left front is in contact with the 2 points above the first row of terminals on the right front, that is, the end communicates with the end, simultaneously, the lower point 7 of the second row on the left, that is, the B phase terminal is connected with the lower point 8 of the same row on the right, that is, with Unicom, the two terminals that lead out the wire from the end and the end are connected to the two terminals of the voltmeter, just form a line voltage loop. This can be seen clearly when you get the switch to observe.

In the same way, explain the circuits of AC and BC separately.

It is a switching electrical product that can be used for two or more power supplies or load conversion. The transfer switch is composed of multi-section contacts, and is mostly used in electrical equipment to turn on and off circuits infrequently, connect power and load, measure three-phase voltage, and control the forward and reverse rotation and star-delta start of small-capacity asynchronous motors. These parts are bolted together as a whole.

Rotate the handle and change gears.

skills, the educational process of developing moral and volitional qualities;

1. Place the dual power automatic transfer switch on the debugging table, connect the corresponding power cord in the correct phase sequence, and connect the phase wire and the neutral wire (neutral line) in place, and cannot be connected wrongly.

When debugging the two- and three-pole switches, the common and standby neutral wires should be connected to the neutral terminals (NN and RN) respectively.

3. Set the dual-power automatic transfer switch in the self-throwing and self-resetting working mode, if the voltage of the two power supplies is normal, the switch should be placed in the position of the common power supply, and the common power supply should be closed.

Fourth, set the common power supply NA, NB, NC, NN arbitrary phase disconnection, the dual power supply should be automatically converted to the standby power supply, if the common power supply returns to normal, should be converted back to the common power supply.

5. Adjust the voltage of any phase of the commonly used power supply to the predetermined undervoltage voltage value, and the dual power supply should automatically be transferred to the standby power supply. When the common power supply returns to normal, the switch should return to the common power supply.

First, place the dual power supply on the adjustment table, the phase wire and the neutral wire (zero.

line) docking in place, can not be wrong.

When wiring the three-pole switch, the common and spare neutral wires need to be connected to the neutral terminals (NN and RN).

After the line is connected, it is necessary to check the installed line, and then turn on the main switch of the debugging station to turn on the common and standby working power supply.

When the dual power transfer switch is in self-throwing and self-resetting mode, and the two working power supplies are normal, the switch should be automatically converted to the common power supply position.

Set the common power supply NA, NB, NC, NN arbitrary phase disconnection, dual power supply should be converted to standby power supply, if the common power supply returns to normal, should be re-converted to the common power supply.

Adjust any phase of the commonly used power supply to below the specified voltage value (i.e., undervoltage state), and the dual power supply should be converted to the standby power supply. When the primary power supply returns to normal, switch to the primary power supply again.

If the standby power supply is arbitrarily out of phase, the alarm should emit an alarm sound.

If the common power supply and the standby power supply are disconnected at any time, the corresponding display value on the controller should disappear.

When the dual power supply is set to the manual operation mode, the manual operation button through the controller needs to be freely converted between the common power supply and the standby power supply, and the display screen is accurate.

Operate the two-point button on the controller. The dual power supply should be disconnected at the same time as the main and standby power supply to the double position.

Adjust the multimeter to the voltage AC750V level, and detect the voltage value of the output terminals of the common power supply and the standby power supply indicator respectively.

For example, the dual power switch has its own generator function, adjust the multimeter to the buzzer gear, survey the generator signal terminal, and the buzzer will not sound when the commonly used power supply is normal. When the commonly used power supply phase A or all power is off, the buzzer emits a beep sound, if the common power supply is out of power and the buzzer does not sound, it means that there is a problem with the power generation signal.

When the switch has DC24V fire protection function, use DC24V voltage to survey the fire alarm terminal, and the positive and negative poles of the power supply correspond to the positive and negative terminals on the terminals.

In special cases, it is necessary to operate the transfer switch through the staff, first operate the double division through the controller, and then use the special handle to transfer the switch. The transfer switch should not be turned in the wrong direction or used too much force.

It is suitable for the switching of two low-voltage circuits or the conversion or safety isolation of two load equipment, etc., and this knowledge is to check it on the ****** of Pineo Electric Technology, and they have introduced it more comprehensively.

Dual power transfer switch is widely used in high-rise buildings, residential areas, hospitals, airports, docks, fire protection, metallurgy, chemical industry, textiles and other important places that do not allow power outages. It is very important in industrial production, and it is almost not used in home decoration, although it is not used, but we still want to introduce how to wire the dual power automatic transfer switch today.

First, when wiring, the common power supply N should be pulled into the common power supply to execute the circuit breaker QN, and the standby power supply R should be connected to the standby power supply to execute the circuit breaker QR.

Second, when QN and QR are four-pole circuit breakers, the wiring mode is according to the wiring diagram, wherein 1,3,5 of QN and QR are three-phase inlet ends, 2,4,6 are three-phase outlets, 7 are neutral line inlet ends, and 8 are neutral line outlets.

Third, if the circuit breaker is a three-pole circuit breaker, the neutral NN of the common power supply (N) and the neutral NR of the standby power supply (R) must be connected to the zero terminal of the three-pole special wiring at the same time.

Fourth, the working power supply of the automatic controller of the dual power supply transfer switch is taken from the incoming line state and neutral line of the circuit breaker QN and QR, if the circuit breaker is selected as the three-pole circuit breaker, it is necessary to connect the zero line NN and NR from two ways, and the three-pole special wiring zero terminal is in the middle of the two circuit breakers.

Specification for operation of dual power switches.

First, when there is a power outage for any reason, and the power supply cannot be restored in a short time, the backup power supply must be enabled.

Second, when the power supply is restored, the power conversion should be done in time, the standby power supply should be cut off, and the mains power supply should be restored.

Third, check whether the indicators and indicator lights indicate whether the liquid is normal, and start the cooling fan in the transformer.

The above is the knowledge introduced to you today about the wiring method of dual power automatic switching and the operation specification of dual power automatic transfer switch, I hope to provide you with some small help. The presence of dual power automatic transfer switches plays a great role in industrial production and can guarantee a continuous power supply.

The connection method of the switch is as follows:

1. First of all, the most important step that cannot be ignored is to turn off the electric switch and cut off the power supply at home. Then find three wires, and use pliers to remove the rubber from the front head of the wire that needs to be connected to the switch, so that it can expose the copper wire that can conduct electricity.

2. The copper wire part that can be conductive with the two wires just processed is connected to the two wiring holes of the switch respectively, and then the other end of the two wires is connected with the power supply and the lamp respectively.

3. Next, use a wire to connect the power supply to the lamp to form a circuit. Check that the wire is secure, and if not, you can fix it with insulating tape. After completion, you can turn on the power and turn on the switch to check whether the wiring is successful.

Precautions for switch wiring

1. Before the operation of switch wiring, we must pay attention to the wire disconnection power supply, if the power supply is not turned on during wiring, it is easy to cause the danger of electric shock, so this step must not be forgotten.

2. When cutting the rubber wrapped at the head of the wire, you can make the length a little longer, in case the length is not enough when wiring, the wire will not be connected firmly, and it is easy to have poor contact.

3. If the wire is unstable and always shakes and is easy to fall, you can use some insulating tape to fix the wire.

4. Don't forget to use a wire to connect the power supply to the lamp, so as to form a circuit, otherwise the circuit will not be energized, and the lamp will not be lit.

When it comes to switches, I believe there is no one who does not understand. There are all kinds of switches everywhere in our lives, and because of the emergence of switches, our electricity has become safe and simple. And the types of switches are also varied.

The dual-power manual transfer switch is one of them. Next, let's take a closer look at the dual-power manual transfer switch.

Dual power manual transfer switch back to fiber what is this.

The dual power transfer switch is a switch that automatically switches to another power supply in case of power failure. Generally, the dual power transfer switch is widely used in high-rise buildings, residential areas, hospitals, airports, docks, fire protection, metallurgy, chemical industry, textiles and other important places that do not allow power outages.

Dual power manual transfer switch classification.

1. ATS and STS

STS, static switch, also known as static transfer switch, is an automatic switching system for the power supply, after the first fault of the STS will automatically switch to the second way to supply power to the load, and the second fault of the STS will automatically switch to the first way to supply power to the load. It is suitable for UPS-UPS, UPS-generator, UPS-mains, mains-mains and other uninterruptible power conversion, all of the above power supplies need a synchronization device to ensure that the two power supplies are basically synchronized, otherwise STS can not be switched.

2. STS static switch switch.

It is mainly composed of intelligent control board, high-speed thyristor and circuit breaker. The standard switching time is 8ms, which will not cause power outages for IT loads. It not only reliably supplies power to the load, but also ensures the safety of the STS when switching between different phases.

The above is the introduction of the mother's network encyclopedia about what the dual power manual transfer switch is, and the relevant content of the classification of the dual power manual transfer switch. I believe that after reading this article, you also have a better understanding of the dual power manual transfer switch. It is worth noting that the dual-power manual transfer switch has obvious on-off position indication and padlock function, which can reliably realize the isolation between the power supply and the load, with high reliability and a service life of more than 8,000 times.