Products-Products-Nanjing Electric International Co., Ltd.

Accuracy:1%,1.6% Blow out back,stainless steel safety case design Wetted part:SUS316 Range:-0.1~160MPa Laminates safety glass Mounting options:Bottom connection;back connection flush mounting.

Stainless Steel Differential Pressure Gauge

Stainless steel pressure gauges are widely used in the petroleum, chemical, metallurgical, light industry, and chemical fiber industries. They can measure the pressure of highly corrosive media and can be used in environments with severe vibration and harsh working conditions.

RGB Series Indoor SF6 Circuit Breaker

This product is a long-life switch developed by our company through the introduction and absorption of excellent similar circuit breakers from domestic and foreign sources, possessing a leading domestic level. It is suitable for three-phase power systems with AC 50/60Hz, used for making and breaking load current, overload current, and short-circuit current. It can also serve as a tie circuit breaker and for switching capacitor banks, especially suitable for frequent operation scenarios.

Cable Junction Box

This product is widely used for node connections in 35kV, 25kV, and 10kV cable systems. It is the main electrical equipment for collecting and distributing cables after they exit the switchgear. The cable joints in the junction box use high-grade imported rubber tight-wrapped insulation with no exposed live parts. The switches in the switch junction box are all SF6 insulated load switches.

Combination Transformer

This product integrates high-voltage load switches and high-voltage fuses into transformer oil, featuring two structural configurations: common tank or separate tank for the transformer core. The oil tank adopts a fully sealed structure and is equipped with components such as oil temperature gauges, oil level gauges, pressure gauges, pressure relief valves, and drain valves to monitor the operational status of the transformer. This product is available in ring main, terminal, and dual-power supply configurations. To better suit the actual requirements of China's power grid, rockwill has introduced pluggable fuses, where fuse failure does not affect transformer performance. Depending on the complexity of low-voltage feeder requirements, the rockwill ZGS series is divided into standard, reinforced, and comprehensive types.

Wind Power Substation

Wind power substations are specialized electrical equipment designed to step up the voltage (0.6–0.69 kV) generated by wind turbines to 35 kV or 10 kV for grid connection. These substations are custom-designed by our company to meet the specific requirements of the domestic wind power market, making them ideal for wind power plants. They are an ideal product for wind power systems, combining reliability, safety, applicability, and cost-effectiveness.

JPX, GZW Series Outdoor Integrated Distribution Box

This product is an integrated distribution device that combines metering, output protection, reactive power compensation, and other functions, allowing users to flexibly select the features they need. By configuring different components, the device can provide protection against short circuits, overloads, overvoltage, overfrequency, leakage, and other issues. It is an ideal product for the new generation of urban and rural power grid upgrades.

GGD Series AC Low-Voltage Distribution Cabinet

This product is suitable for power users such as power plants, substations, and industrial and mining enterprises in AC 50Hz distribution systems with a rated operating voltage of 380V and a rated operating current up to 3150A. It is used for power conversion, distribution, and control of power, lighting, and distribution equipment. It is a new type of low-voltage distribution cabinet designed in accordance with the requirements of the Ministry of Energy and other relevant authorities, as well as the needs of power users and design departments. It is designed based on the principles of safety, economy, rationality, and reliability. The product features high breaking capacity, good dynamic and thermal stability, flexible electrical schemes, convenient combination, strong series compatibility, practicality, innovative structure, and high protection rating. It can be used as a low-voltage switchgear assembly.

VS1 Series Indoor High-Voltage Vacuum Circuit Breaker

This product is a 12/24kV, three-phase AC 50/60Hz indoor high-voltage switchgear, suitable for control or protection switches in power transmission and distribution systems in power plants, substations, and industrial and mining enterprises, especially for breaking important loads and frequent operations.

ZN85 Indoor Vacuum Circuit Breaker

This product is suitable for indoor high-voltage switchgear with a three-phase AC frequency of 50/60 Hz and a rated voltage of 40.5 kV. It is designed for switching various types of loads and applications requiring frequent operation. This product represents the next generation of indoor medium-voltage switchgear with internationally leading technological standards. It can be used for control and protection in power plants, substations, power equipment, and power lines, as well as in applications requiring frequent operations. It is not only suitable for the construction of new substations but also for the upgrading and expansion of existing substations.

RLS Series Indoor SF6 Load Switch

This product is suitable for use in ring-main and radial-type power grids with an AC frequency of 50/60 Hz and voltages of 12 kV, 24 kV, 36 kV, and 40.5 kV. It is designed for the reception (incoming lines) and distribution (feeder lines) of electrical energy. It can close and interrupt load currents. It can also be used to interrupt no-load long-line currents, no-load transformers, capacitor banks, and other similar applications. When equipped with a current-limiting fuse and a trip interlocking mechanism, the load switch-fuse combination device can interrupt larger overload currents and short-circuit currents. Application areas: residential area distribution, box-type substations, various secondary substations, switching stations, and other locations with high requirements for load switches.

Pole-mounted switch primary and secondary integration

Switch unit configuration and installation, compact and elegant structure, highly reliable and fully functional intelligent terminal device. It adopts a fully enclosed structure to achieve a fully enclosed and fully insulated solution, with intelligent primary equipment and built-in measurement, metering, relay protection, monitoring, and control functions. On-site construction is simple and convenient, saving space. It provides necessary detection information to the outside, facilitating operation and maintenance. Integrated vacuum arc extinguishing chamber utilizing APG technology to enhance overall insulation and environmental resistance performance. Internal dual voltage sensors integrated into the vacuum arc extinguishing chamber enable measurement of incoming and outgoing line voltages. The mechanism employs Ansoft-designed high-performance magnetic actuators, ensuring high reliability and maintenance-free operation.

Outdoor High-Voltage Vacuum Load Switch

This product is suitable for use in 12kV, 24kV, and 40.5kV outdoor AC overhead distribution lines. It is commonly used as a distribution line switch, sectional or branch switch, and user feed-in switch, providing a safe and reliable visible break point for line load switching and user needs. It can be operated manually, electrically, or remotely.

LW Series Outdoor High-Voltage SF6 Circuit Breaker

This product is suitable for use in 63kV-132kV power systems, providing protection and control for high-voltage transmission and distribution systems. It fully utilizes the arc-quenching effect to increase the pressure of SF6 gas in the pressure cylinder, significantly reducing the diameter of the pressure chamber and lowering the operating power required by the circuit breaker. This enables the use of a spring-operated mechanism with no oil leakage and higher reliability. Additionally, operating noise is greatly reduced, making it ideal for urban grid renovation projects.

RVB Series Outdoor Vacuum Circuit Breaker

This product is suitable for three-phase 50Hz AC power systems and is used to switch load currents, overload currents, and short-circuit currents. It is particularly suitable for applications requiring frequent operation.

ZW32 Series Pole-Mounted Vacuum Circuit Breaker

This product is suitable for outdoor distribution equipment with three-phase AC 50–60 Hz. It has a rated voltage of 12 kV or 15 kV and is used for protection and control in substations and industrial and mining enterprise distribution systems, as well as in rural grids where frequent operations are required. It can also be used as a ring network power supply unit and terminal equipment for power distribution, control, and protection of electrical equipment. This circuit breaker can be paired with a controller to form a recloser, enabling remote control, remote measurement, remote signaling, and remote adjustment (“four remote” functions).

PGS Series Pole-Mounted SF6 Load Switches

This product is suitable for power systems with rated voltages of 12kV, 24kV, and 40.5kV, rated currents of 400/630A, and frequencies of 50/60Hz. It is a high-performance, long-life switch capable of closing and interrupting load currents and carrying fault currents during transfers, compliant with standards such as IEC 60265 and GB 3804. The product features a stainless steel housing, extremely short arc duration (within half a cycle), and contacts made from arc-quenching materials, ensuring a long service life and enhanced capability to interrupt short-circuit currents. It can be operated manually or by a DC motor located in the motor compartment beneath the housing.

YB Series Pad-Mounted Transformers

This product is suitable for use in ring main power supply systems, dual power supply systems, or terminal power supply systems operating at 7.2kV, 12kV, 24kV, 40.5kV, and 72kV, serving as high-voltage distribution metering, compensation control, and protection devices. In addition to the transformer, the pre-assembled substation is equipped with a four-position load switch, a two-position load switch, backup protection fuses, and plug-in fuses on the high-voltage side. The low-voltage side is assembled with control devices, distribution devices, compensation devices, and energy meters according to customer requirements.

Dropout Fuse Cutout

Tin-plated cast red copper.

Polymeric Housed Surge arrester without Gaps

Massive productions of surge arrester (MOA),either with porcelain or polymeric housing, are suitable in the systems of power generation,power transmission,power transformation, and power distribution under AC 220kV and below.

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