Products Description
Core Value for Substation Procurement
For buyers of substations, new energy power stations and municipal power distribution projects, the stable operation of high-voltage switchgear directly determines the reliability of the power supply system. Equipment failure may cause large-scale power outages and cause huge economic losses. 35kV Substation Switchgear focuses on the core pain points of substation scenarios, and solves the problems of fast insulation aging, long maintenance cycles, and weak environmental adaptability of traditional equipment in a targeted manner. It can adapt to the power distribution needs of most substations without additional investment in transformation, reducing project risks and comprehensive costs for buyers.
Insulation Reliability & Service Life
Insulation reliability is vital for substation safety, and buyers focus on long-term stability. This unit uses VPI-treated Nomex insulation paper, rated Class F with a 155℃ heat tolerance. Partial discharge is tightly controlled below 10pC, slowing insulation aging. Third-party tests confirm continuous, trouble-free operation at rated voltage, with a 30-year lifespan-20% longer than the industry average. This significantly cuts replacement frequency and costs for buyers.
Fire Safety & Compliance Standards
Substation fire safety is critical to grid security and a key factor in procurement. The 35kV switchgear uses a fully oil-free design and F1-grade flame-retardant materials, removing oil leak and fire risks at the source. It meets IEC 60298 and GB 3906-2020 standards, emits no toxic gases, and avoids secondary pollution in fires. Fully compliant for substations and data centers, it helps buyers pass acceptance without extra fire protection.
Efficient Heat Dissipation & Environment Adaptability
Substations face harsh conditions-heat, humidity, dust-that can cause failures, so environmental adaptability matters. This unit uses natural + forced air cooling, with optimized top/bottom vents boosting heat dissipation 30%. Fans auto-adjust under load for efficient cooling. IP30 seals out dust, while the sealed structure ensures stable operation from -25℃ to 40℃ and in 95% humidity. Perfect for high-altitude and coastal sites.
Energy Efficiency & Low Noise Operation
Buyers value reliability but also care about energy use and noise. This product's improved electromagnetic design cuts no-load loss by 18% and load loss by 15% versus IEC standards, meeting EU EcoDesign rules. A 1000kVA unit saves about 15,000 yuan yearly. Optimized core lamination and damping keep noise under 48dB-well below average-so no extra soundproofing is needed. It suits substations near homes, helping avoid noise complaints.
Product Applications
Utility Power Networks: Trusted by electricity companies for stable grid performance and reliable energy distribution.
Industrial Power Systems: Protects heavy equipment in factories, refineries, and mining operations.
Renewable Energy Projects: Widely applied in solar farms, wind power stations, and hydro plants.
Commercial and Residential Power Supply: Ensures safe, uninterrupted electricity for malls, office buildings, and housing areas.
Transportation Infrastructure: Used in airports, metro systems, and railway substations for dependable high-voltage distribution.
Data Centers: Provides secure and continuous power for IT facilities where downtime is not acceptable.
Product Specifications
| Project | Unit | Parameter | |
| Rated voltage | V | AC400 AC690 DC750 | |
| Rated frequency | HZ | 50 | |
| Rate insulation voltage | V | AC1000 DC1500 | |
| Rated impact voltage resistance | KV | 8 | |
| Main bus | Rated current | A | Up to 5000 |
| Rated peak withstand current(1s) | KA | 105, 176, 220 | |
| Rated short time withstand current (1s) | KA | 50, 80, 100 | |
| Gounding system | TT, IT, TN-S, TN-C-S | ||
| Protection level of cabinet | IP30, IP40, IP54 | ||
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