10.5kV/0.8kV Compact Prefabricated Substation for Distributed Photovoltaic Step-up Applications
| Brand | Vziman |
| Model NO. | 10.5kV/0.8kV Compact Prefabricated Substation for Distributed Photovoltaic Step-up Applications |
| Rated voltage | 10.5KV |
| Rated frequency | 50/60Hz |
| Rated capacity | 1500kVA |
| Series | ZGS |
Compact Prefabricated Substation Description
An integrated step-up power transformation system specially designed for distributed photovoltaic power plants. It integrates high-voltage switchgear, dry-type transformers, intelligent monitoring units and protection devices into a compact enclosure, enabling efficient step-up conversion of 0.8kV photovoltaic DC power to 10.5kV grid-connected AC power. Ideal for scenarios including commercial and industrial rooftop PV systems, agriculture-PV complementary projects, and mountainous PV installations, it facilitates the efficient grid integration of clean energy.
Compact Prefabricated Substation Core Selling Points
- 15% Lower Levelized Cost of Electricity (LCOE)：Amorphous alloy transformers are adopted (SCB13/14 high-efficiency silicon steel optional), with no-load losses 30% lower than national standards, delivering significant energy-saving benefits throughout the entire life cycle.
- Millisecond-Level Intelligent Grid Connection：Built-in PV-dedicated microcomputer protection devices (with MPPT optimization algorithm) support reactive power compensation, harmonic suppression, and anti-islanding protection, compatible with the access of dual-fed/string inverters.
- 40% Space Savings：Modular design (customizable enclosure dimensions of 6m×3m×2.8m) with prefabricated structure adapts to complex terrains, shortening the construction period to only 3 days.
- All-Weather Safety Protection：IP54 protection class + C4 anti-corrosion coating enables operation in a wide temperature range of -40℃~+50℃. Equipped with a triple security system including smoke alarm, automatic fire extinguishing, and video surveillance.
Compact Prefabricated Substation Technical Parameters
| Model | ZGS-Z-1000~2500kVA/10.5/0.8 |
| Rated Capacity | Customizable from 1000kVA to 2500kVA |
| Voltage Class | High-voltage side: 10.5kV ±2×2.5% / Low-voltage side: 0.8kV |
| Short-Circuit Impedance | 6% |
| Protection Class | Enclosure: IP54 / Transformer: IP00 (IP23 protective cover optional) |
| Partial Discharge Level | ≤10pC (exceeds IEC 60076-11 standard) |
| Noise Control | ≤55dB (measured at 1m distance) |
| Cooling Method | AN/AF (intelligent temperature-controlled fans + forced air cooling) |
- Intelligent O&M for Hassle-Free Management：Equipped with an IoT-based remote monitoring platform (supporting 4G/fiber optic communication), it provides real-time tracking of 20+ key parameters including transformer temperature, load rate, and power quality.
- The fault self-diagnosis system automatically sends early warning notifications, enabling multi-platform management via mobile APP and PC terminal.
- Flexible Configuration for Precise Adaptation：Optional split-winding design is available to meet the parallel connection requirements of multiple inverters.Supports ring network and terminal wiring schemes, fully compatible with both centralized and distributed photovoltaic arrays.
- Military-Grade Reliability：The high-voltage switchgear is configured with VS1-12 vacuum circuit breakers, boasting a mechanical service life of ≥30,000 operations.The transformer is KEMA-certified and can withstand 150% instantaneous overload without damage.
- Full Lifecycle Services：Free grid-connection compatibility analysis reports are provided as standard.Key components (circuit breakers, temperature controllers) come with an extended 10-year warranty period.
It can cut LCOE by 15%. It adopts amorphous alloy transformers (SCB13/14 high-efficiency silicon steel is optional), whose no-load losses are 30% lower than national standards, bringing remarkable energy-saving benefits throughout the product life cycle.
Q: Why does the Prefabricated Substation save space and shorten the construction period?
A: It features a modular design with customizable enclosure dimensions of 6m×3m×2.8m. The prefabricated structure adapts to complex terrains, which helps save 40% of space and shorten the construction period to only 3 days.
Q: What all-weather safety protection capabilities does the Prefabricated Substation have?
A: It has an IP54 protection class and is coated with C4 anti-corrosion paint, enabling stable operation in a wide temperature range of -40℃~+50℃. In addition, it is equipped with a triple security system including smoke alarm, automatic fire extinguishing and video surveillance.
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