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Energy-Saving Box-Type Substation 10kV/0.4kV 800kVA for EV Charging Piles with IoT Monitoring Transformer Substation
Qinghao Intelligent Box-Type Substation is engineered specifically for electric vehicle charging infrastructure. Integrating a high-efficiency dry-type transformer (630kVA~1600kVA), HV/LV switchgear, and smart power management systems in a single IP54-rated steel enclosure, it enables seamless 10kV-to-0.4kV voltage conversion for fast DC chargers. With modular design and compact footprint, it reduces installation time by 60% compared to traditional solutions.
Voltage Conversion: 10kV/35kV → 0.4kV (±5% voltage stability)
Capacity Range: 630kVA, 800kVA, 1250kVA, 1600kVA (Customizable)
Efficiency: >98% (EN 50588-2 certified) with active harmonic filtering
Protection: Lightning arrestors, overload/over-temperature cutoff, and arc-flash prevention
Ambient Tolerance: -35°C to +50°C operation (IEC 60076-11 compliant)
We offer a variety of standard designs and configurations, and also can customize for special designs and options.
1) Smart Compact Pad-Mounted Transformer for EV Charging Stations High-Efficiency 630kVA~1250kVA
2) All-in-One Solar Ready Substation for DC Fast Chargers IP54 Protected, Grid-Stable Design
3) Energy-Saving Box-Type Substation 10kV/0.4kV 800kVA for EV Charging Piles with IoT Monitoring
4) Pre-Assembled Mobile Substation for EV Charging Infrastructure Fast Deployment Low Maintenance
Please check below quick links for other product types.
| Control Transformer | Oil Immersed Transformer | Dry Type Transformer |
| Substation Transformer | Switchgear | Distribution Cabinet |
Main Characteristics
1. Plug & Play Mobility: Mounted on a towable chassis for rapid relocation between charging hubs.
2. Smart Grid Synergy: Built-in IoT sensors monitor real-time load distribution, enabling dynamic power allocation to avoid grid congestion. Data accessible via cloud platform (Modbus/RS485).
3. Eco-Design: Noise ≤45dB, 100% recyclable aluminum enclosure, and optional solar PV input for hybrid energy use.
Advantages
1. Compact structure, small size and removable.
2. Safe and reliable operation.
3. Easy for maintenance.
Applications
1.Highway Rest Stops: Supports 8x 120kW DC chargers simultaneously (800kVA model).
2. Urban Fleets: Centralized power management for bus/taxi charging depots (1250kVA+ models).
3. Commercial Complexes: Underground parking-compatible low-profile design (3m height max).
Service Environment
1. Ambient temperature: Maximum +40ºC, Minimum -25ºC
2. Altitude: less than 1000 meters.
3. Seismic level: less than 3m/s2 at horizontal direction and less than 1.5m/s2 at vertical direction.
4. Installation environment: No obvious and heavy pollution, no explosive and corrosive gas and dust, with good air ventilation and no severe vibration and shock.
(Note: If the application environment is different from the above standard conditions, please contact for customized designs.)
| High Voltage Compartment | Item | Unit | Parameter | ||
| Rated frequency | Hz | 50/60 Hz | |||
| Rated voltage | KV | 3.3KV, 6.0KV, 6.6KV | 10KV, 11KV, 13.8KV, 15KV, 20KV, 22KV | 30KV, 33KV, 35KV, 36KV, 38.5KV | |
| Max service voltage | kV | 7.2 KV | 12KV, 24KV | 40.5KV | |
| Rated current | A | 400, 630, 1000, 1250,1600, 2000, 2150 etc | |||
| Transfer current | A | 1200-3150A | |||
| Transfomer Compartment |
Rated voltage | KV | 3.3KV, 6.0KV, 6.6KV | 10KV, 11KV, 13.8KV, 15KV, 20KV, 22KV | 30KV, 33KV, 35KV, 36KV, 38.5KV |
| Rated power capacity | KVA | 100kVA-2500kVA | |||
| Tapping range | % | ±2*2.5%, ±5% | |||
| Vector group | Yyn0, Dyn11 | ||||
| Short-circuit Impedance | % | 4.0, 4.2, 4.5, 6,8 | |||
| Low Voltage Compartment | Rated voltage | V | 220, 380, 400, 415, 433, 440, 660, 690, 800 | ||
| Main circuit rated current | A | 50-4000 | |||
| Branch current | A | 5-800 | |||
Qinghao Electric Co., Ltd. (Hereinafter referred to as Qinghao Electric) is a reliable and specialized power transmission and distribution equipment manufacturer located in Wenzhou City, Zhejiang Province. We are focusing on transformer, substation, switchgear and other power related products' R&D and manufacture from 2010. Our products mainly include oil immersed transformer, dry-type transformer, amorphous alloy transformer, prefabricated substation, pad mounted substation, solar photovoltaic & wind power step-up substation, high and low voltage switchgear.
With more than 20years develop and production efforts, our products are sold to many countries all over the world. Now our products' technical performance has reached the advanced level in power industry, and our company has become a leading professional power distribution manufacturer not only in China but also in the world. With the concept of "world-class transformers, smart solutions", Qinghao Electric is devoting to provide high-quality power for customers.
Let us cooperate with a brighter future!
Q: Are you a Manufacturer, factory or Trading company?
A: Yes, we are engaging over 20years in the research and development, production and operation of distribution equipment (transformer, switchgear, substation, etc.).
Q: What's your warranty terms?
A: We offer 24 months warranty time.
Q: How long is the production time?
A: 25 to 45 days or depending on order requirements.
Q: What's your payment terms?
A: T/T, L/C or negotiation.
Q: How do you conduct quality control in your factory?
A: Qinghao transformers are manufactured in accordance with international standards and customer requirements with IEC, SGS, Intertek, CCC, CE and other international certifications. All transformers are 100% conducting routine test, type test and special test in accordance with IEC Standards and customer requests at the end of the manufacturing process to ensure every product is qualified.
Q: Do you have the products in stock?
A: Normally no, but we have raw material stock to shorten production lead time.
Q: How can I trust you?
A: Qinghao Electric has more than 20years manufacturing experience, and cooperated with many customers all over the world. We have many patent certificates, CE certificate, KEMA certificate, ISO9001, ISO14000 certificate. We are the audited supplier of TUV and Made-In-China.
Q: What should provide to make custom transformer?
A: Technical drawing and specification documents are the best, or you can list key parameters for designing.
Q: Could I have your catalog and price list?
A: Price may change based on material market. Welcome to contact for accurate price via Made-in-China or company official website.
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