Current measuring transformers 0.4-0.72 kV

Current transformers from 0.4 kV to 0.72 kV are used to measure current parameters. They are installed in networks made up of wires with large cross-sections. Such networks are designed to work with high loads. The numbers in the device designation indicate the current strength at the input and output of the device. It is necessary for them to correspond as closely as possible to actual data. Then the instrument readings will be the most accurate, and it will not distort them. This is important because, for example, in industrial conditions, inaccuracies can reach significant values.

The choice of current transformers at 0.4 kV is made with the mandatory consideration of the following parameters:

• nominal voltage;
• accuracy class;
• nominal current of the windings - primary and secondary.

These devices are used where other devices cannot cope. For example, when the consumption is more than 100 A, a conventional electric meter with a nominal 60 A will not work. It simply cannot measure the real consumption value. But devices of this type can do this. They reduce the power from 100 A to 5 A, which is actually read. The real readings are given thanks to the accelerated movement of the electric meter - it moves several times faster.

Buy transformers 0.4-0.72 kV

In this section of the catalog, you can choose TOP-0.66 and TOP-0.66-B, busbar and non-busbar devices. The number in the designation indicates the rated voltage in the networks in which these products are installed. The current frequency can be 50 or 60 Hz.

Such products must be protected against fire in case of short circuits and other emergencies. For this purpose, its housing is made of flame retardant self-extinguishing materials.

We offer a 0.4 kV current transformer that can operate in the following conditions:

• an environment that does not contain chemically active vapors and gases in high concentrations;
• no more than 1000 m above sea level;
• operating temperature range from -45 to 50 degrees Celsius;
• non-explosive and non-dusty environment;
• any working position.

Protective transparent covers are provided so that secondary terminals can be sealed separately. Particular attention should be paid to the correct installation, as the devices are not subject to repair.

We offer certified products that meet current quality requirements. We provide the entire package of documents upon sale. Contact us for a price calculation!