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33kV Prefabricated Compact Substation for Industrial Power Distribution

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L/C,T/T

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FOB,CFR,CIF

Min. Order:

1 Set/Sets

Delivery Time:

30 Days

Transportation:

Ocean,Land,Air

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Product Description

Product Attributes
Product Feature
Product description

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Overview

Product Attributes

Model No.: YB-33/35 Series (Customizable)

Brand: HENGFENGYOU

Application: Power distribution

Phase: Three

Rated Voltage: HV: 33kV / 35kV; LV: 0.4kV / 0.69kV / 0.8kV / 6.6kV

Rated current: Up to 1250A (HV side) / 6300A (LV side)

Frequency: 50Hz / 60Hz

Degree of protection: IP54 / IP55 / IP65

Standard: IEC 62271, IEC 60076, ANSI/IEEE, GB

Certificate: CE, CCC, SABS, ISO9001

Shell Material: Steel

Origin: China

Packaging: Plywood

Delivery Time: 30 Days

Product Feature

Product description

I. Selection and Configuration Guide
As the power backbone for heavy industry, large-scale mining, and industrial parks, 33kV/35kV compact substations must provide ultimate reliability, safety, and resilience against harsh environmental conditions.

1. Design and Structural Layout
Modular Architecture: We recommend a prefabricated modular design. For 33kV/35kV ratings, the unit typically features a three-compartment layout: High-Voltage (HV) Switchgear, Power Transformer, and Low-Voltage (LV) Switchgear.
HV Side Solutions: To maximize space efficiency and safety, we offer integrated GIS (Gas-Insulated Switchgear) or VCB (Vacuum Circuit Breakers), fully compliant with IEC 62271 standards.
Transformer Options: Units can be equipped with oil-immersed transformers from 1250kVA to 5000kVA (expandable up to 10MVA). For applications requiring strict fire safety, cast resin dry-type transformers are available.
2. Capacity, Efficiency, and Global Standards
Capacity Range: Standard configurations include 2500kVA, 3150kVA, 4000kVA, or 5000kVA, engineered to handle the high-torque starting loads of heavy industrial machinery.
Energy Efficiency: Compliant with global efficiency mandates such as Europe Tier 2 and US DOE 2016. Our low-loss design supports carbon neutrality goals while significantly reducing long-term operational costs.
Compliance: HENGFENGYOU products meet major international standards, including IEC 62271, ANSI/IEEE, GB, EN, GOST, and SABS.
3. Environmental Adaptation
Coastal & Industrial Areas: Enclosures feature stainless steel or specialized anti-corrosion coatings rated up to C5M (ISO 12944), ensuring a service life exceeding 30 years in high-salinity or chemical environments.
All-Weather Performance: Equipped with an Intelligent Temperature Control System (forced air cooling + anti-condensation heaters) to ensure stable operation in temperatures ranging from -40°C to +50°C.
Seismic & Ingress Protection: Reinforced structural frames provide high seismic resistance, with enclosure protection ratings typically at IP54 or higher.
4. Technical Specifications (Typical)

II. Design and Installation Guidelines
1. Integrated Compact Design
Our 35kV substations utilize an "All-in-One" philosophy. Fire-resistant partitions completely isolate the transformer room from the switchgear compartments. HV-to-transformer connections use fully insulated, shielded elbow connectors or busbars to eliminate flashover risks.
2. Key Installation & Commissioning Steps
Foundation: Only a pre-cast concrete pad is required. The unit is shipped fully assembled for a "Plug-and-Play" installation using a single-point lift.
Cable Entry: Ample bottom-entry space is provided to accommodate the bending radius and secure fastening of 35kV high-voltage cables.
GIS Integrity: For units with integrated GIS, on-site SF6 pressure testing and gas top-offs (if required) are performed to ensure hermetic sealing.
III. Commissioning and O&M (Operation & Maintenance)
1. Smart O&M Systems
Remote Monitoring (SCADA): Integrated microprocessor protection relays support Modbus/IEC 61850 protocols for real-time monitoring of current, voltage, frequency, and breaker status.
Advanced Sensing: Optional upgrades include online transformer oil temperature monitoring, ambient humidity sensors, and arc-flash protection systems for millisecond-level fault isolation.
2. Preventative Maintenance
Routine Inspection: Bi-annual checks of weather-sealing gaskets and cooling fans.
Insulation Checks: Periodic visual inspections of HV insulation components through dedicated viewing windows—allowing for safety checks without de-energizing the cabinet.

IV. Summary
The 33kV/35kV Prefabricated Compact Substation serves as the "heart" of large-scale electrical infrastructure. HENGFENGYOU solutions prioritize high reliability, compact footprints, and extreme environmental adaptability. By replacing complex on-site civil works with factory-prefabricated modules, we reduce project timelines by over 50%, making this the premier choice for international engineering projects and high-voltage industrial parks.
V.FAQ
1. What is a 33kV/35kV Compact Substation?
An all-in-one prefabricated power unit integrating HV switchgear, transformer, and LV distribution in a single, weatherproof enclosure.
2. Core Components?
HV Side: GIS (Gas-Insulated) or VCB (Vacuum Circuit Breakers).
Transformer: Oil-immersed or Dry-type (up to 5000kVA+).
LV Side: Distribution panels with 0.4kV to 0.8kV options.
Enclosure: IP55+ rated Stainless Steel or GRC.
3. Key Advantages?
70% Space Saving vs. traditional substations.
Plug-and-Play: Factory-tested for rapid on-site deployment.
Extreme Durability: C5M anti-corrosion for mining and coastal areas.
4. Can it include GIS?
Yes. We can integrate 33kV/35kV GIS modules for a maintenance-free, ultra-compact high-voltage section.
5. Technical Ranges?
Voltage: HV 33-35kV (Max 40.5kV); LV 0.4kV/0.69kV/0.8kV/6.6kV.
Capacity: 1250kVA to 5000kVA standard (Higher custom ratings available).
6. Main Applications?
Heavy Industry & Mining.
Renewable Energy (Solar/Wind Step-up).
Infrastructure (Airports, Seaports, Rail).
7. Safety & Maintenance?
Features internal arc protection, mechanical interlocking, and SCADA smart monitoring for remote oversight and minimal maintenance.
8. International Standards?
Fully compliant with IEC 62271, IEC 60076, ANSI/IEEE, SABS, and SASO.

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