Three Phase Power Distribution Compact Prefabricated Substation 33kV

Attributes Description Documentation Resource Library

Key attributes

Brand	ROCKWILL
Model NO.	Three Phase Power Distribution Compact Prefabricated Substation 33kV
Rated voltage	33kV
Rated frequency	50/60Hz
Series	YBM

Description

The Rockwill compact prefabricated substation is a complete set of power distribution equipment that integrates high-voltage switching devices, a power transformer, and low-voltage distribution units within a single enclosure. It is widely used in civil buildings, residential communities, medium and small factories, mines, and oilfields.

The substation features high integration, compact structure, stable performance, and high reliability. It requires minimal on-site construction, offers a short installation cycle, and supports flexible relocation. The appearance colour and overall design can be customized to match the surrounding environment. It is an ideal replacement for traditional urban and rural substations and a preferred complete equipment for power grid construction and renovation projects.

Product Showcase Video

Key Features

Integrated design ：Combines HV switchgear, transformer, and LV distribution in one factory-assembled enclosure, reducing site work and installation time
Compact footprint: Small footprint suits space-constrained urban and suburban installations
Flexible relocation :Factory-assembled, transportable design enables reuse at different sites
High protection rating: Enclosure rated IP56 for reliable outdoor operation
Customizable appearance ：Enclosure colour and design can be matched to the surrounding landscape

Technical Parameters

Parameter	Value
Form	Unitized (factory-assembled)
Rated voltage (HV)	33 kV
Rated capacity	1250 kVA (range: 50 – 2500 kVA)
Frequency	50 / 60 Hz
Low voltage	0.4 kV (400 V)
Insulation level (IEC)	36 / 70 / 170 kV (Um / PF / LI)
Shell material	Steel plate
Shell protection grade	IP56
Transformer cooling	ONAN (Oil Natural Air Natural)
Standards	IEC 62271-202, IEC 60076

Service Environment

Altitude: ≤ 1000m
Ambient temperature: -25℃ ~ +40℃
Relative humidity: Daily average ≤ 95%, monthly average ≤ 90%
No severe abnormal vibration and impact
Installation environment: Indoor location, no fire and explosion hazard, no corrosive gas and conductive dust, no strong mechanical impact

Applications

Residential communities and high-rise buildings
Commercial complexes and civil buildings
Industrial parks, factories, mines, and oilfields
Urban power grid construction and renovation projects
Temporary power supply for construction sites

Custom ratings, switchgear configurations, transformer capacities, and enclosure designs are available on request. Contact Rockwill for application-specific design and quotation.

Solutions for Compact Transformer Substation

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Reference Projects for Compact Transformer Substation

Rockwill 400 Units Prefabricated Substation Case Study in Niger

Riding the wave of electrification across West Africa, customized prefabricated substations are fully tailored to Niger’s extreme operating conditions of high heat, aridity and frequent sandstorms. Leveraging integrated and modular advantages, they effectively shore up urban and rural power supply weaknesses and solidify the foundation of national power grid modernization.01 Project Overview1.1 Project BackgroundNiger, a significant French-speaking nation in the Sahel region of West Africa, has

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Documentation Resource Library Compact Transformer Substation

Public.

Rockwill Electric Group Profile

Brochure

English

PDF

Certifications Compact Transformer Substation

FAQ for Compact Transformer Substation

What is the warranty period for compact prefabricated substation?

We provide up to 10 years long-term warranty service for the whole set of equipment. The warranty covers all manufacturing and material defects under standard installation, commissioning and normal operating conditions. Special warranty terms can be negotiated for large grid projects.

Can the appearance and color of the prefabricated substation be customized?

Yes. The overall appearance design, shell color and exterior style can be fully customized according to the surrounding urban architecture, landscape and project requirements, realizing integrated landscape matching for urban grid and scenic area power projects.

What international standards does the 33kV prefabricated substation comply with?

The whole set of equipment is strictly designed, manufactured and tested in accordance with IEC 62271-202 switchgear standard and IEC 60076 power transformer standard, ensuring full compliance with international grid project specifications and supporting global project delivery and acceptance.

What are the core advantages of compact prefabricated substations compared with traditional substations?

Unlike traditional substations that require complicated on-site construction, this prefabricated substation features ultra-compact footprint, full factory pre-assembly, minimal site work, fast installation and flexible relocation. It also supports customized appearance to blend with urban landscapes, with higher reliability and lower maintenance costs.

$13500.00

Pricing calculator

Model

YBM-33

PDF

Rockwill Electric Group Profile

Warranty by

Whole life care manager

Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.

The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.