Defined by project scope: valves and control & protection panels can be customer-supplied, customer-specified, or sourced to the equipment list. ETENZ provides the enclosure, installation foundations, interface pre-fabrication, and in-cabin integration, with equipment ratings governed by the project technical agreement.





STATCOM E-House
For STATCOM makers and integrators, with air- or water-cooled valves — enclosure manufacturing and subsystem integration, bare shell to OEM/ODM.
Key Metrics
Product Features
Equipment-ready bays
Foundations, cable routes, and service clearances for valves, control & protection panels, and auxiliaries laid out to the equipment list before fabrication.
Equipment-ready bays
Foundations, cable routes, and service clearances for valves, control & protection panels, and auxiliaries laid out to the equipment list before fabrication.
Bushing interfaces
HV wall-bushing cutouts, mounting plates, and sealing completed in the factory — connect external bus or cable on site.
Air or Water Cooling
One enclosure takes air- or water-cooled valves: air ducts for air cooling; for water cooling, the pipe wall penetrations and in-cabin piping can be completed with the enclosure.
Auxiliary distribution
Lighting, service sockets, and HVAC supply fed from an auxiliary distribution assembly designed and manufactured by ETENZ.
Sealed for outdoors
IP54/55 sealed doors and locking hardware for long-term unattended outdoor service.
Product Details

The cabin provides continuous, centralized installation space for STATCOM valves and their panels: equipment foundations, floor cable routes, and maintenance aisles are developed from the equipment list before manufacture, with tray and duct positions reserved on walls and ceiling. Each pair of double equipment doors lines up with an internal bay, so large units roll straight into position. Layout and aisle dimensions are confirmed to the project equipment documentation.

HV connections leave the cabin through wall bushings: cutouts, mounting plates, sealing, and the external clearance the bushing needs are prefabricated to the single-line diagram. Bushings can be delivered with the enclosure or supplied by the equipment vendor with ETENZ preparing the mounting interface. Site work is reduced to connecting the external bus or cable — no on-site cutting that would compromise the enclosure's protection and coating system. Bushing type and voltage class are confirmed per project.
Wall-mounted industrial air conditioning is sized to the equipment heat load and combined with ceiling circulation fans, forced extraction, and louvered intake to drive directed airflow through the equipment bays, with temperature and humidity control preventing condensation. For water-cooled valves, inlet and outlet pipe penetrations are prepared in the cabin wall with cover plates and seals; in-cabin piping and supports can be installed with the enclosure to the integration scope, with the interface to the cooling plant set by the equipment supplier's documents. Environmental design targets are configurable: operating temperature typically −40 to +55 °C, altitude up to 4,000 m (derated).
Lighting, service sockets, HVAC supply, and monitoring circuits feed from a centralized auxiliary distribution box with tiered miniature breakers, terminal rows, and clear circuit labeling; signal terminals are reserved for connection to remote monitoring. Auxiliary distribution assemblies are designed and manufactured by ETENZ, with circuit configuration confirmed to the equipment list and an energized function check completed before shipment.
Sealed service hatches and viewing windows in the cabin walls let operators check equipment status and perform local operations without opening the main doors, limiting exposure of the internal environment. Hatch flanges and gaskets are designed as part of the enclosure protection system, so the cabin holds its IP54/55 rating when closed. Hatch positions and count are arranged around the equipment layout and O&M requirements.
Rows of double equipment doors along the cabin's long side correspond one-to-one with the internal equipment bays. Doors carry multi-point locking hardware and full-perimeter gaskets, with drained frames for lasting outdoor sealing. Door openings are sized to the largest equipment section, and separate personnel doors keep routine inspection from opening the large equipment doorways.
Delivery Scope Options
Bare-Shell Supply (Interfaces Reserved)
Scope 1Bare-Shell Supply (Interfaces Reserved)
For customers with their own equipment integration and site commissioning capability. The cabin structure is supplied with equipment foundations, floor routing cast in, wall bushing openings and mounting plates, and water-cooling pipe penetrations with cover plates reserved, plus cable routes, earthing bars, terminal boxes and pre-built routes for climate, fire and access control — cutting site drilling and re-routing.
Scope Includes:
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | STATCOM / SVG E-House |
| Structure | Integral containerized unit |
| Accommodated Equipment | STATCOM valves (air- or water-cooled), control & protection panels, integrated to scope |
| Voltage Class | Global / regional levels (project-configured, 50/60 Hz) kV |
| HV Interface | Wall bushings / cable entries (prefabricated to project) |
| Dimensions | Custom to equipment and transport mm |
| Design Life | 25 years |
| Enclosure Materials | Roof 2.0 / walls 1.6–2.0 / rock wool 50 mm |
| Protection Rating | IP54 / IP55 IEC 60529 |
| Anti-Corrosion | C3 / C4 / C5 ISO 12944 |
| Operating Temperature | Typ. −40 to +55 (configurable) °C |
| Altitude | ≤ 4,000 (derated) m |
| HVAC Configuration | Air-con / ventilation / dehumidification / liquid-cooling support (heat-load based) |
| Fire & Security | Detection & alarm interfaces / access & video (prefabricated interfaces) |
| Transport & Installation | Whole-unit transport / crane placement |
| Factory Testing | Pre-shipment inspection + energized function check (witness optional) |
| Warranty | 12 (extendable to 24) months |
| Standards Alignment | IEC / IEEE (project-specific) |
Product FAQs
Yes. Bare-Shell Supply, Subsystem Integration, Finished Cabin Delivery and OEM/ODM Private-Label are selected by equipment sourcing and site integration capability — Bare-Shell Supply already includes equipment foundations, bushing opening provisions, and lifting/transport interfaces.
The equipment differs. A conventional STATCOM follows the grid voltage and supplies reactive power; a grid-forming unit, built as a static synchronous condenser, adds supercapacitors to the converter and provides voltage and inertia support at the same time. The enclosures differ as well: the grid-forming valve enclosures ETENZ builds are split by phase and carry gas fire suppression and flammable-gas detection, with the water-cooling plant housed in a separate control-and-cooling enclosure. Both types are detailed and built to the equipment supplier's design.
From the project single-line diagram and equipment documentation: bushing type, cutout position, mounting plate, and sealing are confirmed during detail design and prefabricated in the factory. Bushings can be delivered with the enclosure, or supplied by the equipment vendor with ETENZ preparing the mounting interface.
To the equipment heat load, cooling method and deployment climate: air-cooled valves use air conditioning, forced extraction and external air ducts; for water-cooled valves, the inlet and outlet pipes leave through wall penetrations and the in-cabin piping can be installed with the enclosure, while air conditioning and dehumidification still hold temperature for the control & protection panels and auxiliaries. Operating temperature is typically −40 to +55 °C (configurable), with altitude up to 4,000 m derated.
IP54/55 is standard. Corrosion protection is selected within the C3-C5 (ISO 12944) system to the installation environment — coastal and high-salinity sites usually call for C4 or above, so state site conditions at the quotation stage.
Equipment list and heat load, cooling method (air or water), single-line diagram and bushing/exit requirements, deployment environment (temperature, altitude, corrosion), dimensional and transport constraints, preferred cooperation tier, and estimated quantity.
Related Solutions
Custom Prefabricated Enclosure Manufacturing Solution
ETENZ turns equipment needs into prefabricated enclosure platforms, combining enclosure manufacturing, electrical interfaces, environmental control, thermal management, fire/security provisions and OEM/ODM delivery.
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