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PT Transformer

The Potential Transformer (PT), also known as a Voltage Transformer (VT), is a key component in electrical power systems. It is designed to step down high voltage levels to a lower, more manageable voltage that can be safely measured and monitored. PTs play a crucial role in various applications, including metering, protection, and control.

The primary function of a PT is to provide an isolated secondary voltage that is proportional to the primary voltage input. This secondary voltage is accurately scaled down based on a specified turns ratio, usually in the range of 100:1 to 5000:1. By stepping down the voltage, PTs allow for safe and accurate measurements using various instruments and devices.

Similar to a Current Transformer (CT), PTs consist of a primary winding and a secondary winding wound around a high permeability magnetic core. The primary winding is connected in parallel to the circuit where the voltage is to be measured, while the secondary winding is connected to the measuring or monitoring device. As primary voltage is applied, it induces a scaled-down voltage in the secondary winding based on the turns ratio.

PTs are commonly used in metering applications to measure voltage levels and calculate power consumption accurately. They provide voltage signals to watt-hour meters, power analyzers, and other devices that require precise voltage measurements. PTs are also employed in protective relays and circuit breakers to detect anomalies, such as overvoltage or undervoltage conditions. By providing reliable voltage readings, PTs assist in maintaining the integrity and stability of electrical networks.

PTs come in various types, including electromagnetic and capacitive PTs, which are chosen based on the specific requirements of the electrical system. Electromagnetic PTs are widely used for indoor applications, while capacitive PTs find application in outdoor and high-voltage installations.

In summary, PT Transformers are vital components in electrical power systems that step down high voltage levels to manageable levels for measurement and monitoring purposes. They play a crucial role in metering, protection, and control applications, providing accurate and scaled-down voltage readings. With their reliable and precise measurements, PTs contribute to the efficient operation and safety of electrical networks.

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10KV  single phase high tension voltage potential transformer

10KV single phase high tension voltage potential transformer

The JDZX(F)9-10G potential transformer is an epoxy resin fully enclosed casting insulation indoor type product. It is suitable for various high-voltage switchgear and is designed for voltage, electric energy measurement, and relay protection in power systems with a rated frequency of 50Hz and a rated voltage of 10kV (or 6kV) and below. This product features a single-phase, dual-winding fully enclosed structure, with epoxy vacuum resin cast molding. The core is made of high-quality cold-rolled silicon steel sheets wound into a circular shape. Both the primary and secondary windings are wound around the core. The secondary winding has a terminal box with user-friendly output slots. The product has excellent resistance to contamination and moisture, demonstrated by its compliance with Level......

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Three-Phase Indoor High Voltage Dry type resin potential transformer

Three-Phase Indoor High Voltage Dry type resin potential transformer

The JSZV18-10R is a dry type resin potential transformer designed for use in inflatable ring main units. It features a fully enclosed structure with epoxy resin casting, providing excellent insulation and protection. This product meets the standards of GB20840.3 and IEC60044-2, ensuring reliable performance and compatibility. It is rated for insulation levels of 12/42/75KV and operates at a frequency of 50HZ. Developed and manufactured by Zhejiang Rongzhi Electric Co., Ltd., the company specializes in the research, production, and sales of current transformers, voltage transformers, fault indicators, and dehumidifiers for switchgear. One of the key features of this product is its built-in protection device for prevention of abnormal overvoltage on the secondary side of various current t......

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Pouring type with power supply potential transformer

Pouring type with power supply potential transformer

JDZ12-10 series Pouring type with power supply potential transformer is an outdoor voltage transformer designed for reliable and accurate voltage measurement in power distribution systems. It consists of a primary terminal, a pouring body, a secondary winding, an iron core, and primary and secondary frameworks. The primary terminal is positioned at the top of the pouring body and connected to the primary winding via a primary fuse. The secondary winding is wound separately on the secondary framework. The primary and secondary frameworks are placed on the core column of the cruciform iron core, with the secondary framework positioned inside the primary framework. To ensure durability and stability, the primary terminal, windings, and pouring body are integrated using resin pouring, creati......

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Single Phase Castable Insulation High Sensitive Voltage Transformer

Single Phase Castable Insulation High Sensitive Voltage Transformer

The JDZ9-10 Single Phase Castable Insulation High Sensitive Voltage Transformer is a reliable and efficient transformer that operates on the same principle as traditional transformers. It features a small and constant capacity, ensuring normal operation even in an unloaded state. With a low impedance, this voltage transformer is equipped with a fuse on the primary side and a reliable grounding on the secondary side to prevent coil burnout and potential accidents in case of insulation failure. This transformer is designed for measurement purposes and can be used in a single phase or connected in a V-V configuration to form a three-phase system. It is suitable for various voltage measurement requirements, with multiple tapping points on the primary side. Additionally, it is equipped with a......

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Miniature voltage power electrical single phase transformers

Miniature voltage power electrical single phase transformers

The JDZ-10 Miniature Voltage Power Electrical Single Phase Transformers are designed for compact size and excellent weather adaptability. The transformer core is made of high-quality cold-rolled silicon steel sheets, stacked into a square shape and exposed to the air. The primary and secondary windings are wound together and then cast in epoxy resin. The casting body is fixed on a metal base plate, and the lower part of the epoxy resin casting body is coated with semiconductor paint, which is connected to the metal base plate and the core. This design helps improve the uniformity in power plants and reduce distortions in power lines. The JDZ-10 transformers are suitable for both single-phase and three-phase circuits. When used in three-phase circuits, two transformers can be connected in ......

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China PT Transformer is one kind of products from RZMV factory. As one of leading manufacturers and suppliers in China, we provide durable products. We can sell them at a low price and can be customized. We sincerely look forward to becoming your reliable long-term business partner!