Product Description

Step-up transformers, also known as boosters, are indispensable basic testing equipment for power stations, power supply and distribution systems, and scientific research units. This equipment is widely used in insulation strength tests of various electrical products, electrical components, and insulating materials, aiming to evaluate the insulation level of products, identify insulation defects, and measure their ability to withstand overvoltage. Through rigorous insulation testing, ensure the safety and reliability of electrical equipment.

The cascade test transformer is manufactured using high-quality materials to ensure superior and stable performance and reliability. The core is a single-phase core structure, made up of high-quality cold-rolled oriented silicon steel sheets, and is robust and durable. The high-voltage coil is a cylindrical multi-layer tower design, utilizingHigh-qualityEnwrap with polyester insulated wire and high-voltage withstand insulation materials, ensuring stable operation under high voltage. The low-voltage coils are placed inside the high-voltage coils, effectively utilizing space. Additionally, the housing is designed in an octagonal shape, which not only reduces weight but also shrinks the volume, making it easy to move and transport.

The operation principle of the cascaded test transformer is based on the electromagnetic induction principle. After the power supply of the working frequency is input to the operation box (or console) and the voltage is adjusted by the autotransformer, it is then input to the primary winding of the test transformer. According to the law of electromagnetic induction, the required working frequency high voltage can be obtained in the secondary (high-voltage) winding. To meet higher voltage testing requirements, cascading technology can be used, involving the serial use of two transformers. In the cascaded state, the capacities of the two transformers must be equal (P1 = P2), and the total output voltage is the sum of the output voltages of the two transformers (U_total = U1 + U2).

Product Synonyms: Power Frequency Voltage Proof Test Device, Power Frequency Voltage Proof Tester, Voltage Proof Test Device, Series Test Transformer, Series Excitation Test Transformer

Product Features

High-voltage output capability: By using a cascading connection method, it can output higher test voltages to meet the needs of tests at higher voltage levels.

Modular Design: The product is designed for modularity, consisting of two independent transformers. It can be used individually or connected in series to achieve higher voltage, enhancing flexibility and convenience of use.

◆ High qualityMaterial and Structure:

○ Core material usedHigh-qualityCold-rolled取向 silicon steel sheets stacked, sturdy and durable.

High-voltage coil features a cylindrical, multi-layer tower structure, consisting of...High qualityWound with polyester enameled wire and high-voltage insulation materials, ensuring stable and safe voltage performance.

Low-voltage windings are designed inside, with high-voltage windings on the outside, resulting in a compact structure and superior performance.

◆ Portable:八角形外壳设计，lightweight and compact, easy to move and transport, suitable for various testing environments.

◆ Reliable and safe electrical protection:

○ Equipped with overcurrent relays and timers, the protection action values can be set according to testing requirements, ensuring the safety of the testing process.

During the process of voltage rise or pressure resistance, if abnormal conditions such as short circuits, corona discharges, or breakdowns occur, the equipment will automatically disconnect the main circuit to prevent damage to the equipment and the tested item.

Accurate instrument measurement:

The instrument coil is an independent winding, typically 100V, capable of accurately measuring and displaying voltage and current values during the test process.

High-voltage voltmeters and current meters provide real-time indication of test voltage and current, ensuring the accuracy of test data.

Easy operation and maintenance:

Operation is simple, with the regulator handle, voltage adjustment and boosting can be achieved.

The equipment has a clear structure, with convenient connections between components, making it easy to maintain and inspect.