Your Leading Capacitor Compensation Cabinet Manufacturer in China
Shanghai Nengdu New Energy is a high-tech enterprise focusing on power quality optimization, with core advantages of excellent technology and professional solutions! We have long been deeply engaged in the field of power quality optimization, boasting mature intelligent control technology that can accurately meet the needs of different scenarios. We provide customized compensation solutions that are highly reliable, cost-effective and capable of large-capacity compensation for industries, new energy and other fields, which are far superior to conventional solutions in terms of stability and adaptability, effectively helping you solve the core needs of reactive power compensation.
Capacitor Compensation Cabinets are traditional reactive power compensation devices. As most loads in power systems are inductive, connecting power capacitors generates capacitive reactive power that offsets inductive reactive power in the grid to achieve reactive power compensation. A capacitor compensation cabinet mainly consists of capacitor-reactor modules, switching devices and a controller, and is primarily used to compensate inductive reactive power. Owing to its stepped compensation characteristics and susceptibility to harmonics, it is generally suitable for applications with stable reactive load and low harmonic content.
Advantages of Capacitor Compensation Cabinet

Composed of basic components including capacitors, switching devices and fuses, it has no complex power units, which ensures low failure rate and stable long-term operation.

Compared with active compensation equipment such as SVG and APF, it features lower manufacturing and operating costs, offering excellent overall cost-effectiveness.

Adopting a standardized cabinet design, it can be directly connected to the distribution busbar. The installation is flexible, no complex civil engineering or commissioning is needed, and it saves space for various power distribution rooms.

The only main vulnerable parts are capacitors and switching devices; regular inspections are sufficient for daily use, making maintenance simple, low-cost and low-workload.

By compensating reactive power to meet the grid standard, it effectively prevents fines resulting from unqualified power factor.

It minimizes the transmission of reactive current in lines, lowers heat loss of transformers and cables, improves the effective capacity of transformers, and directly reduces enterprise electricity expenses.

After compensating inductive reactive power, it can raise the terminal voltage of the system, reduce voltage drop and fluctuation, improve the operational stability of motors and equipment, and extend the service life of electrical equipment.

It is well-suited for conventional loads with stable changes and no frequent impacts, such as pumps, fans, machine tools and air compressors, providing timely and stable compensation effect.
Working Principle of Capacitor Compensation Cabinet
By connecting capacitors in parallel to generate capacitive reactive power, it offsets the inductive reactive power produced by motors, transformers, and other equipment in the power grid, so as to improve power factor, reduce line loss, and stabilize system voltage.


Application Scenarios of Capacitor Compensation Cabinet
Suitable for stable load and low harmonic occasions, such as factories, commercial buildings, residential quarters, distribution stations, pump stations, fans, water pumps, air compressors, machine tools, and other conventional industrial and civil power distribution scenarios.
It has simple structure, low investment, stable performance and easy maintenance, and is more cost-effective than active compensation equipment.
It is suitable for stable-load, low-harmonic occasions such as factories, commercial buildings and distribution stations.
The warranty period of the capacitor compensation cabinet is 36 months.
Standard delivery time is 7-15 days, subject to order quantity.



