Where And Why Are Isolation Transformers Used - Miracle Electronics
Isolation transformers are one of the most unique types of transformers used in the industrial sector in machineries. These are transformers that transfer electrical power from a source of AC power to an equipment or device, while isolating the powered device from the power source for safety reasons. They provide galvanic isolation with no conductive path present between the source and load; the isolation used to protect against electric shock, and to suppress electrical noise in sensitive devices.
Applications of isolation transformers
Sensitive equipment – Isolation transformers block the transmission of the DC component in signals from one circuit to the other, while allowing AC components in signals to pass. And, there is special insulation between the primary and secondary windings, specified to withstand a high voltage between them. These characteristics make isolation transformers ideal for use in sensitive equipment like medical devices, laboratory instruments, and computers.
Pulse circuits – Certain small isolation transformers are used for isolation in pulse circuits.
Electronics testing – Isolation transformers are used in electronics testing equipment to avoid exposing live metal in a device under test, which may otherwise prove hazardous because of the high voltage. When isolation transformers are used, there is no conductive connection between the primary and secondary windings, which results in a very small leakage current flow if the exposed live metal is connected to the earth.
Equipment at elevated potentials – Isolation transformers are used for the power supply of devices that are not at ground potential; for example, radio antenna masts. Without the isolation transformers on such masts, the lighting circuits would conduct radio-frequency energy to the ground through the power supply.
Benefits of using isolation transformers
Voltage control – Isolation transformers have their primary and secondary windings isolated from each other; thus reducing the electrical noise between them.
Impedance matching – The low voltage side of a transformer has low impedance, while the high voltage side has high impedance. Isolation transformers can generate superior impedance matching of a critical load to an electrical circuit. And, internal low impedance isolation transformers can create complete isolation from the input AC line.
Other benefits – There are many other benefits that an isolation transformer can provide, such as continuous filtering of power line noise, reduction of electrical surges, removal of neutral-to-ground voltage and noise, improved reliability, and lowered costs.
With all these benefits, you can have isolation transformers installed in a variety of different critical applications, may it be laboratory equipment, hospital equipment, sensitive equipment, electronics testing equipment, diagnostic testing equipment, telecom, and equipment related to transactions. No matter what your application, you can get the best quality isolation transformers by partnering with Miracle Electronics, the most reliable and genuine isolation transformer manufacturer in India. Here, you’ll get only RoHS and REACH compliant transformers that adhere to UL 60601-1 standards, in terms of minimum enclosure leakage current, limited maximum earth leakage current, minimum temperature rise at load, maximum high voltage test between windings, excellent creepage distance, and excellent air distance.
