product introduction
The compact ring network cabinet is a special medium-voltage power distribution equipment adapted to modern power distribution scenarios. It is widely used in urban power grids, industrial plants, commercial buildings, residential communities and new energy grid-connected projects. It mainly undertakes core tasks such as power distribution, load switching, circuit protection and fault isolation. The equipment adopts a miniaturized and compact design, which greatly reduces the footprint while retaining a full set of core performance and safety standards, and is specially adapted to installation sites with small spaces. The whole machine is equipped with high-quality insulation materials and precision manufacturing technology, stable operation and high safety. At the same time, it adopts a mature modular structure. On-site installation, daily inspection and maintenance, and later expansion and upgrade are very simple, in line with international electrical standards, can effectively reduce power distribution failures, shorten power outages, and adapt to various conventional and new power distribution projects.
Product Advantages
It occupies a small area and is easy to install
The overall structure of the equipment is streamlined, there is no redundant design, the internal components are arranged in a regular manner, and the volume advantage is obvious, which is suitable for all kinds of restricted scenarios. At the same time, the equipment is lightweight and easy to carry and transport, which greatly reduces the difficulty of on-site construction, effectively shortens the project installation cycle, and adapts to various power distribution projects of all sizes.
Modular design, efficient operation and maintenance
I t adopts a flexible and modular combination structure, which can be freely matched and combined according to the power distribution conditions of different projects, and has strong adaptability. Each module can work independently, be overhauled and upgraded separately, and there is no need for overall power failure during the maintenance process, which maximizes the continuity of power supply to the power grid and reduces operation and maintenance costs.
Stable performance and high safety
The cabinet material is rigid, wear-resistant and anti-aging, and can operate stably at high frequencies for a long time. It comes with an efficient heat dissipation structure to eliminate the problem of overheating of equipment; the fully sealed cavity is designed to protect the insulating components, and it is equipped with standardized cable wiring channels to effectively avoid wiring errors and reduce the probability of failure. Later troubleshooting, replacement and maintenance are simple and fast.
Product Use Environment
Wide range of applicable scenarios
It can be routinely used in traditional power distribution scenarios such as urban small and medium-sized power distribution stations, industrial parks, commercial complexes, and residential areas. At the same time, it is compatible with new energy grid-connected power distribution systems such as photovoltaic and wind power, and is suitable for a variety of medium-voltage power distribution needs.
Strong environmental adaptability
It can operate stably for a long time in indoor and outdoor conventional electrical environments, can withstand daily complex working conditions and minor environmental erosion, is durable and durable, and adapts to most outdoor and indoor engineering conditions.
Support customized adaptation
According to the individual needs of the user's project site size, power distribution parameters, working condition requirements, etc., exclusive customized solutions can be provided to match the use standards of different projects in all directions.
| Project | Parameter | |||
| Load Switchgear (C) | Combined Elecctric Cabinet (F) | Circuit Breaker Cabinet(V) | ||
| Rated Voltage | 12kV | |||
| Rated Frequency | 50HZ | |||
| Rated Current | 630A | 1250A (Depends on Fuse Current) | 630A/1250A | |
| Rated Transfer Current | / | 1750A | / | |
| Cable Charging Break Current | 40A | 25A | ||
| No-load Transformer Breaking Current | 16A | 16A | ||
| Rated Switching Times of Active Load | 100times | / | / | |
| Rated Number of Short Circuit Breakering | / | / | ≥30 times | |
| Rated Short-time Tolerable Current |
The Primary Loop | 20kA/4S | / | 20kA/4S,31.5kA/4S |
| Grounding Switch | 20kA/4S | / | 20kA/4S,31.5kA/4S | |
| Rated short circuit closing current |
The Primary Loop | 50kA | Limited by High Voltage Fuse | 50kA/80kA |
| Grounding Switch | 50kA | 50kA/80kA | ||
| 1 mimute Power Frequency Voltage Withstand |
Interphase with and against the ground | 42kV | ||
| Fracture | 48kV | |||
| Lighting Shock Withstand Voltage | Interphase with and against the ground | 75kV | ||
| Fracture | 85kV | |||
| Mechanical Life | The Main Switch | ≥5000 times | ≥10000 times | |
| Grounding Switch | ≥3000 times | |||
| Main Circuit Resistance | ≤120μΩ | ≤400μΩ | ≤200μΩ | |
| SF6 Gas Pressure Rating (20℃) | 0.035MPa | |||
| Annual Leakage Rate of SF6 Gas | 0.01% | |||
| Rated Power Supply Voltage of Secondary Loop | AC220V/DC110/DC48V/DC24V | |||
| 1 minute Power Frequency withstand Voltage of Secondary Loop | 2kV | |||
| Protection Grade | Aeration Tank | IP67 | ||
| Shell and Operating Mechanism | IP4X | |||
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