Intelligent Prefabricated Compact Substation | SCADA | up to 35kV

Overview

The prefabricated compact substation is an all-in-one factory assembled power distribution unit designed for outdoor applications. It integrates a medium voltage switchgear, an oil immersed or dry type transformer, and a low voltage distribution panel into a single weatherproof enclosure. The compact design eliminates the need for individual equipment rooms and reduces on-site civil works, allowing rapid deployment in areas where space is limited or construction time is critical.

Everything is pre-wired and factory tested before shipment. Upon arrival, only cable connections between the substation and the utility grid or load are required. This turnkey solution significantly reduces installation time and labour cost compared to traditional substations built on site.

The skid mounted or pad mounted design allows the substation to be lifted and moved to a new location when project requirements change, making it suitable for both permanent and temporary applications.

Key Features

• Compact footprint — the integrated design combines transformer, switchgear and distribution panel in one enclosure, occupying up to 60 percent less space than traditional substations with separate equipment rooms.
• Factory assembled and tested — every unit undergoes full assembly and routine testing at the facility, ensuring all components work properly before delivery and eliminating on-site troubleshooting.
• Reduced on-site installation — only foundation preparation and cable connection are needed upon arrival, cutting installation time from weeks to days compared to stick-built substations.
• Single supplier for the complete package — sourcing all major components from a single manufacturer simplifies procurement, ensures component compatibility, and provides single-point warranty responsibility.
• Relocatable — the skid mounted or pad mounted design allows the substation to be lifted and moved to a new location, for temporary or permanent use.
• SCADA integration — supplied as an intelligent substation with SCADA system for remote supervision.
• Turnkey solution — pre-wired and factory tested, requiring only cable connections on arrival.

Technical Specifications

Applications

• Utility distribution substations — distribution substations in residential areas.
• Solar farm and wind plant grid connection — grid connection for renewable generation.
• Industrial plant power supply — power supply for industrial plants.
• Commercial building and shopping mall distribution — distribution for commercial buildings and shopping malls.
• Construction site temporary power — temporary power where the substation can be relocated afterwards.
• Rural electrification projects — distribution in rural electrification schemes.
• Mining and oil field power distribution — power distribution for mining and oil field sites.

Installation Conditions

• Foundation preparation according to the substation dimensions.
• Cable connection with proper glands and bending radius.
• Grounding system with resistance less than 4 ohms.
• Ventilation and clearance for safe operation access.
• Environmental consideration for high temperature or altitude.
• The enclosure is rated IP43, so it is intended for outdoor installation.
• The ambient temperature at site must be within the −35 °C to +40 °C range.

How to Select

• The rated capacity required, within the 50–2500 kVA range.
• The voltage ratio required — the standard rating is 12/0.4 kV.
• Whether an oil immersed or dry type transformer is preferred for the enclosure.
• The no-load voltage regulation required — ±5% or ±2 × 2.5%.
• The ambient temperature and altitude at the site, given the −35 °C to +40 °C range and the environmental consideration for high temperature or altitude.
• Whether the substation will be permanent or relocated later, which suits the skid mounted or pad mounted design.

FAQ

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