Primary and Secondary Photovoltaic Prefabricated Cabin
✅Extremely Short Construction Period,save 40% to 60%
✅Reliable and Consistent Quality
✅Compact and Land-Saving
✅High Level of Intelligence
✅Flexibility and Scalability
- Product Introduction
Jinneng electric YZC-12 New Energy – Primary and Secondary Photovoltaic Prefabricated Cabin can be understood as a standardized, "plug-and-play" PV booster substation that is pre-manufactured and debugged in a factory.
To address the region's harsh conditions-including significant temperature variations (extreme cold or heat) and heavy dust-this product features a fully sealed, double-layer insulated split-type enclosure, equipped with fully automatic heating and cooling systems.
Working principle:

Product Component
Primary System (High-Voltage Main Circuit Part)
This is the "main artery" for power transmission, handling high voltage and high current.
1. PV Inverter: The core equipment that converts the DC electricity generated by the PV array into AC electricity.
2. Pad-Mounted Transformer (Unit Substation): Typically a dual-split transformer, which steps up the low-voltage electricity (e.g., 0.8kV) from the inverter output to the grid transmission voltage (e.g., 35kV).
3. 35kV High-Voltage Switchgear: Contains circuit breakers, disconnectors, grounding switches, etc., responsible for connecting, disconnecting, and protecting the power line. It is the exit point for feeding electricity into the grid.
4. Busbars, Cables, Surge Arresters, Current/Voltage Transformers, etc.: Necessary connection, protection, and measurement components.
Secondary System (Control, Protection, and Monitoring Part)
1. Integrated Automation System:
Protection and Control Devices: Monitor electrical parameters in real-time and quickly trip to disconnect faulty sections in case of faults such as short circuits or overcurrent.
Communication Manager: Handles data transmission between equipment within the station and with remote dispatch centers (telemetry, teleindication, telecommand, teleregulation).
Energy Metering System: Accurately measures the electricity fed into the grid and received from the grid.
2. Station Power Supply System:
DC Power Supply / UPS: Provides stable and reliable backup power for critical equipment such as protection devices and circuit breaker operating mechanisms.
3. Intelligent Auxiliary Monitoring System:
Environmental Monitoring: Monitors cabin temperature and humidity, and automatically starts air conditioners or fans for regulation.
Security Monitoring: Includes smoke detection, water leakage detection, access control, and video surveillance.
Fire Protection System: Typically equipped with an automatic gas fire suppression system.
Cabin Structure
1. Main Body: Made of high-strength steel and container-style structure, featuring windproof, rainproof, dustproof, anti-corrosion, insulated, fire-resistant, and seismic capabilities.
2. Layout: The interior is meticulously designed, divided into areas for primary equipment, secondary equipment, communication equipment, etc., with a reasonable layout for easy inspection and maintenance.
3. Lighting, HVAC, Fire Protection: Integrated with complete industrial-grade auxiliary facilities to ensure equipment operates in an optimal environment.
Functional features:
● Ambient temperature: maximum temperature +40℃ , minimum temperature -25℃
● Environmental humidity: the average daily relative humidity is not more than 95%, the average monthly relative humidity is not more than 90%
● Altitude: ≤ 1000 meters
● Wind speed: outdoor wind pressure does not exceed 700Pa(34m/s)
● Shock-resistance: horizontal acceleration is not more than 3m/s2, horizontal acceleration ≤ 1.5m /s2
● Installation slope: no more than 3 degrees
● Installation environment: the surrounding air is not corrosive, flammable gas and other obvious pollution, installation site without violent vibration
● If out of the above conditions, please negotiate with the us to decide
Product advantage:
● Extremely Short Construction Period:
Prefabricated Cabin Model: Site foundation construction proceeds concurrently with factory production and debugging of the cabins. On-site work only involves "placing the cabins and connecting cables," which can shorten the construction period by 40%-60%.
● Reliable and Consistent Quality:
The factory production environment (free from weather interference, standardized processes, professional tools) ensures that equipment installation and wiring quality are far superior to on-site work, guaranteeing the long-term reliable operation of the power station from the source.
● Compact and Land-Saving:
The highly compact equipment layout significantly reduces the footprint of the substation, making it particularly suitable for scenarios with limited land resources such as mountains, hills, and tidal flats.
● High Level of Intelligence:
Integrated with advanced sensors and monitoring systems, it supports an intelligent operation and maintenance model of "unmanned duty, few personnel on watch," enabling remote monitoring, fault diagnosis, and data analysis via cloud platforms.
● Significant Investment Benefits:
Although the unit cost of a single cabin might be high, the comprehensive economic benefits over the project's entire lifecycle are very prominent due to the shortened construction period, reduced on-site construction and management costs, and lower land costs.
● Flexibility and Scalability:
Adopts a modular design, allowing expansion like "building blocks." When future power station expansion is needed, it can be done simply by adding new prefabricated cabins, offering great flexibility.
Product Applications
● Large-Scale Ground-Mounted PV Power Plants: Serves as the booster station unit for the project.
● Commercial and Industrial Distributed PV: Serves as a dedicated booster substation for users.
● Power Stations in Complex Terrains such as mountains, plateau,desert
● PV Projects Requiring Rapid Completion: Meets tight grid-connection deadlines.

Business partner:
Our product have been selling to State grid, China Southern Power Grid, China Huaneng, Sdic Power, CHD, TK, Sinopec, Petrochina, China Guodian, Aux, China Railway, China Railway Construction, CNNC, China mobile, Life's Good, Tianneng, China 3 Gorges, CR power, Siemens and etc. YZC-12 Primary and secondary photovoltaic prefabricated cabin is one of the complete set of equipment manufactured by Jinneneg factory.

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