Isolation transformer generally is made without shielding layer between the primary and secondary and is 1 to 1 isolation transformer, mainly used for electrical isolation between the input and output. Therefore, it is called insulating transformer. There are added copper foil between the primary and secondary in isolation transformer to isolate and to filter harmonics so as to avoid the distortion of current waveform and pollution of the mains grid. Further more, it will avoid the electric shock caused by touching live objects (or parts that has electricity due to insulation damage) and ground at the same time.

Isolation transformer is one type of many transformers, is generally used to isolate the impurities of the mains grid and maintain equipment, etc., and has a function of protecting devices, lightning protection and filtering. PEACO-SG series three phase isolation transformer, dry type isolation transformer, is a new generation of energy-saving power transformer developed and produced by Peaco Support teams. The primary and secondary voltage of the isolation transformer can be designed as required. There are single phase isolation transformer, three phase isolation transformer with optional delta connection and star connection, rated power varies from 50VA to 2500KVA (maximum 2500KVA) and CE is qualified.

Peaco Support isolation transformers adopt high-quality raw materials, using advanced production equipment and superb technical process, advanced winding machines and a full set of vacuum pressure dipping equipment. The method of whole-column winding is provided for the isolation transformer windings. The complete set of transformer is dipped in sections with the incremental baking method of 60°C, 80°C, 100°C and 120°C, so that the insulating paint adheres to the coil better, which can effectively reduce the working noise, loss, temperature rise of the transformer and increase the transformer service life.

PEACO-SG series three phase isolation transformers are widely used in CNC machinery, photovoltaic power generation systems, subways, high-rise buildings, airports, stations, wharves, ships, mining and tunnel for power transmission and distribution.

Futures of the isolation transformer at the input end of the AC power supply:

1. If there are large triple harmonics of the power grid and interference signals, an isolation transformer can be used to remove such harmonics and reduce the signals.

2. The isolation transformer can be used to generate a new neutral line to avoid the abnormal operation of the equipment due to the poor neutral line of the power grid.

3. Current waveform distortion (such as the triple harmonics) caused by nonlinear loads can be isolated by isolation transformer and there will be no power grid pollution.

Futures of the isolation transformer at the output end of the AC power supply:

1. An isolation transformer can prevent the current distortion of the nonlinear load from affecting the normal operation of the AC power supply and polluting the power grid and play an important role in purifying the power grid.

2. When sampling at the input end of the isolation transformer is done, the distortion of the nonlinear load current does not affect the accuracy of the sampling and a control signal that can reflect the actual situation can be obtained.

3. If the load is unbalanced, it will not affect the normal operation of the regulated power supply.

Isolation Transformer Advantages:

1. High security. Reliable isolation transformers comes with high safety performance. Even if the human accidentally touches the power supply during use, electric shock will not happen.

2. Prevent electronic devices from polluting the power grid. Durable isolation transformers provide stable quality and can reduce environmental pollution.

3. Anti-interference. Both single phase isolation transformer and three phase isolation transformer have a good anti-interference function.

4. Isolation transformer featurs stable performance, low energy consumption as well as high working efficiency.

Isolation Transformers Functions

Isolation transformers are widely used in photovoltaic power generation systems, have the functions of changing voltage and transferring energy, and they also have the following functions.

1. Electrical isolation: The primary and secondary of the isolation transformer depend on the magnetic circuit to transfer energy and on the components and power grid to isolate electrically, which can prevent the DC component and electric leakage from entering the power grid so as to protect the equipment and the power grid.

2. Suppressing the component PID. The isolation transformer is connected behind the inverter to increase the potential of the n-pole to the ground and then to Indirectly increases the potential of the negative pole of the component so that the purpose of suppressing the component PID will be achieved the purpose of suppressing the PID of the component.

3. Matching voltage: The grid voltage varies from different countries. A isolation transformer can be added behind the inverter to match the according voltage.

4. Elimination of the triple harmonics: Dyn11 connection is adopted in isolation transformer, the triple harmonics circulation in the D-connected winding can generate the magnetomotive force of triple harmonics in the transformer, which is balanced with the one in the low-voltage winding.

5. Stronger power grid adaptability: In some factories where large motors or electric welding machines have to be used, There will be some situations that we can not control that the power grid voltage will fluctuate greatly, the harmonic current is large and the three-phase voltage is extremely unbalanced. It is hard for conventional string inverters to solve these problems, but the inductance of the primary and secondary side of the isolation transformer can prevent the sudden change of current. The transformer with Dyn11 connection allows the current of neutral wire to reach more than 75% of the phase current and can bear the three-phase unbalance. In this case, such 240V to 110V isolation transformer, 120V to 100V isolation transformer, 440V to 220V isolation transformer, 120V to 120V isolation transformer, 230V to 230V isolation transformer, 480V to 480V isolation transformer, 480V to 240V isolation transformer, etc. can be used. Custom isolation transformers are also available for your special needs.