NТМ

Three-phase voltage transformers of the NTM series are designed for large-scale conversion of alternating current electrical voltage for the purpose of further measurement and supply to protection and signaling devices. They are used for metering, including commercial, of electric energy and are used in networks with an isolated neutral.

Design features

The transformer consists of an active part, which is placed in a tank filled with transformer oil, and a cover. The active part consists of three armored magnetic cores and windings wound on a cylinder made of electrical cardboard. Porcelain high and low voltage inputs located on the transformer cover are used to connect the transformer to the electrical installation. There is a plug on the transformer cover for taking a sample and filling oil. There are four oval holes in the bottom of the tank for fastening the transformer at the installation site. For connection to the grounding circuit, the transformer is equipped with a special boss. The transformer cover and oil drain plug are sealed. The design provides reliable insulation and protection from external influences, which guarantees durability and safe operation.

Technical characteristics of NTM transformers

Dimensions and weight of transformers

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Advantages of using NTM transformers

1. High measurement accuracy: Provide accurate voltage conversion, which is critical for electricity metering and protection system operation.
2. Reliability and durability: Robust design and high-quality materials guarantee a long service life even under intensive operating conditions.
3. Resistance to anti-resonance phenomena: Special design avoids the negative effects of resonance in networks with an isolated neutral.
4. Multifunctionality: Suitable for various industries and energy sectors where accurate voltage measurement and control are required.

Areas of application

• Energy: Used in substations and distribution networks to control electricity parameters.
• Industry: Used in various production processes where precise voltage control and equipment safety are required.
• Transport: Used in electric transport to ensure stable operation of power supply and control systems.
• Construction: Used in construction sites to ensure reliable power supply and control of network parameters.

Compliance with standards

NTM transformers comply with international quality and safety standards, in particular IEC 60044-2:2008 and DSTU GOST 1983-2001. Production is carried out in accordance with the ISO 9001:2008 quality management system, which guarantees high product quality and customer satisfaction.

Three-phase voltage transformers of the NTM series are a reliable and effective solution for accurate measurement and control of voltage in electrical networks with an isolated neutral. Their technical characteristics, high quality of performance and the ability to adapt to specific customer requirements make them the optimal choice for ensuring stable and safe operation of power systems.

For more detailed information and advice on the selection of NTM transformers, please contact the official representative of Ukrelektroaparat LLC.