Yes — that is the first tier, Bare-Shell Supply (Interfaces Reserved). ETENZ supplies the enclosure structure, steel bases for the line-up and excitation transformer, floor cable trenches and entry openings, the earth bar and lifting interfaces; equipment installation and termination are done by you or your nominated assembler. Send the equipment list, overall dimensions and loads early so the bases and openings are right the first time they are made.
ABS
ISO 14001
ISO 45001
ISO 9001
Static Frequency Converter (SFC) E-House
For static frequency converter builders, electrical equipment assemblers and power plant project owners — one single-level cabin takes the converter line-up, its excitation dry-type transformer and a full-length service aisle; enclosure manufacturing and subsystem integration, from bare-shell to OEM/ODM delivery tiers.
Primary Equipment E-HouseSynchronous Condenser Electrical E-HouseIndustrial Equipment EnclosureCustom Equipment Integration Unit
Key Metrics
Single-level
Structure
25years
Design Life
IP54·55
Ingress
C3-C5
Corrosion
Product Features
Single-Span Line-Up
The converter cabinets stand in one row along a single side, with a service aisle running the full length opposite. Reaching either end never means stepping outside the cabin.
Single-Span Line-Up
The converter cabinets stand in one row along a single side, with a service aisle running the full length opposite. Reaching either end never means stepping outside the cabin.
Single-Span Line-Up
The converter cabinets stand in one row along a single side, with a service aisle running the full length opposite. Reaching either end never means stepping outside the cabin.
One-Piece Enclosure
Cabin width follows the line-up and aisle rather than a container envelope. The unit is manufactured and inspected complete at the works, then shipped in one piece with no site assembly.
Floor Cable Trenches
Cables run in floor trenches with power and control in separate channels. Checker-plate covers lift out one panel at a time, and no headroom is given up to a raised floor.
Airflow Plus Cooling
Intake louvers sit on the supply side of the line-up and exhaust fans discharge through the opposite wall, with an industrial air conditioner covering hot-weather duty.
Factory Pre-Wiring
Lighting, outlets, fans and detectors are pre-wired at the works to numbered terminals, with ferruled and color-coded conductors. Site work is the external connection only.
In-House Aux Board
The auxiliary distribution board is designed and manufactured by ETENZ, with AC and DC circuits on separate tiers and breakers rated and labeled position by position.
Product Details
The converter assembly stands in one row along a single side of the cabin, its feet bearing on embedded steel section bases, with operating faces and rear termination space set out from the cabinet depth. The opposite side keeps a service aisle running the full length, and the end bay reserves a route for moving equipment in and lifting it out. Interconnecting busbar and control cable routes are set alongside the cabinet positions during manufacture. The converter assembly is customer-supplied or integrated within the agreed scope, its voltage, current and rating fixed by the equipment supplier's technical agreement; ETENZ is responsible for the mounting bases, in-cabin interfaces and inter-panel connections.
The excitation dry-type transformer sits on its own steel base at the end of the line-up, laid out for the unit's weight and center of gravity, with rails underneath for positioning and withdrawal. Space is kept above the HV and LV terminals for busbar and cable entry, wall penetrations are sleeved, sealed and fire-stopped, and earthing and bonding points are prepared with the base. Rating, impedance and temperature-rise class belong to the equipment supplier's technical agreement; what is built here is the base, the interfaces and the cooling conditions around it.
Intake louvers are grouped on the supply side of the line-up, with blades formed to a weather angle, a continuous rain hood outside and insect mesh behind. Each opening is clamped to the corrugated wall through a folded frame and sealed around its perimeter. The number and position of openings follow the equipment's intake side and airflow, and are settled together with the ingress protection configuration. The bottom rail runs continuously beneath the openings rather than being interrupted by them, so the envelope openings take nothing away from how the base frame carries load.
Exhaust fans mount inside steel spigots framed into the wall panel with a guard mesh behind. Their supply leads are crimped, ferruled and left long enough to adjust at the works, so site work is the connection only. Lighting, socket outlets, fans and detectors are all pre-wired to the auxiliary board and terminal rails against the wiring schedule; external cables land on the terminal rail and no further, and an interface list and terminal schedule ship with the unit so nobody is tracing circuits on site.
The industrial air conditioner is wall-mounted on a reinforced frame, with the opening sealed and weather-trimmed around its perimeter and condensate piped outside against backflow. Ventilation and cooling are configured together against the converter's heat duty: ventilation carries most of the load in normal conditions and the air conditioner covers hot-weather peaks. Cooling capacity is calculated from the project heat load, with the equipment's heat dissipation supplied by the equipment vendor as the sizing input.
The auxiliary distribution board is designed and manufactured by ETENZ, with AC and DC circuits arranged on separate tiers inside one enclosure: the upper tier carries the AC ways for lighting, socket outlets, climate control and maintenance power, the lower tier the control supply and the 24 V DC power module. Breakers are rated to their circuit and labeled position by position, every conductor is ferruled and color-coded, and incoming and outgoing runs are dressed through spiral wrap to the terminal rail, with spare ways left for circuits added later.
Delivery Scope Options
Scope 1
Bare-Shell Supply (Interfaces Reserved)
Scope 1Bare-Shell Supply (Interfaces Reserved)
For customers with their own equipment integration and site termination capability. ETENZ supplies the enclosure structure with steel bases for the line-up and excitation transformer, floor cable trenches and covers, entry openings and sealing positions, the earth bar and lifting interfaces.
Scope Includes:
Enclosure frame, corrugated wall panels, doors and rock-wool insulation
Steel section bases and embedded anchors for cabinets and excitation transformer
Floor cable trenches, removable checker-plate covers and entry openings
Earth bar, lifting points, and dimensional, coating and packing inspection
Scope 1
Bare-Shell Supply (Interfaces Reserved)
Scope 1Bare-Shell Supply (Interfaces Reserved)
For customers with their own equipment integration and site termination capability. ETENZ supplies the enclosure structure with steel bases for the line-up and excitation transformer, floor cable trenches and covers, entry openings and sealing positions, the earth bar and lifting interfaces.
Scope Includes:
Enclosure frame, corrugated wall panels, doors and rock-wool insulation
Steel section bases and embedded anchors for cabinets and excitation transformer
Floor cable trenches, removable checker-plate covers and entry openings
Earth bar, lifting points, and dimensional, coating and packing inspection
Technical Specifications
Product type
Modular power E-House (static frequency converter starting module)
Structure
Single-level one-piece (sectional optional)
Overall dimensions
Custom to equipment layout and transport conditions
mm · ISO 668 / 1496 (ISO envelope only)
Design life
25
years · ASCE 7 (load basis)
Roof / wall panel
Roof 2.0 galvanized steel / wall 1.6–2.0 corrugated steel
mm
Insulation
50 (rock wool core)
mm · ISO 6946
Frame
Channel and square-tube steel structure
Floor / roof load
Project confirmed
kg/m² · ASCE 7 / ISO 4354
Ingress protection
IP54 / IP55 (confirmed against layout and opening configuration)
IEC 60529
Corrosion class
C3 / C4 / C5
ISO 12944 (salt spray ISO 9227)
Operating temperature
Typical −40 to +55 (configurable)
℃ · IEC 60721-3
Altitude
≤ 4000 (derated)
m
Climate method
Ventilation plus industrial air conditioning (sized to heat load)
Electrical equipment scope
Converter assembly, excitation transformer and other main equipment customer-supplied or integrated within the agreed scope
Electrical interfaces
Lighting / socket outlets / earthing / auxiliary distribution / signal
IEC 60445 (identification)
Fire
Detection / alarm / linkage interfaces; suppression package supplied within scope or customer-nominated
NFPA 72
Factory testing
Works inspection plus power-on, interlock and function checks; witness testing optional
Warranty
12 (extendable to 24, project dependent)
months
Certification
ISO 9001 / 14001 / 45001; ABS (American Bureau of Shipping)
| Parameter | Specification |
|---|---|
| Product type | Modular power E-House (static frequency converter starting module) |
| Structure | Single-level one-piece (sectional optional) |
| Overall dimensions | Custom to equipment layout and transport conditions mm · ISO 668 / 1496 (ISO envelope only) |
| Design life | 25 years · ASCE 7 (load basis) |
| Roof / wall panel | Roof 2.0 galvanized steel / wall 1.6–2.0 corrugated steel mm |
| Insulation | 50 (rock wool core) mm · ISO 6946 |
| Frame | Channel and square-tube steel structure |
| Floor / roof load | Project confirmed kg/m² · ASCE 7 / ISO 4354 |
| Ingress protection | IP54 / IP55 (confirmed against layout and opening configuration) IEC 60529 |
| Corrosion class | C3 / C4 / C5 ISO 12944 (salt spray ISO 9227) |
| Operating temperature | Typical −40 to +55 (configurable) ℃ · IEC 60721-3 |
| Altitude | ≤ 4000 (derated) m |
| Climate method | Ventilation plus industrial air conditioning (sized to heat load) |
| Electrical equipment scope | Converter assembly, excitation transformer and other main equipment customer-supplied or integrated within the agreed scope |
| Electrical interfaces | Lighting / socket outlets / earthing / auxiliary distribution / signal IEC 60445 (identification) |
| Fire | Detection / alarm / linkage interfaces; suppression package supplied within scope or customer-nominated NFPA 72 |
| Factory testing | Works inspection plus power-on, interlock and function checks; witness testing optional |
| Warranty | 12 (extendable to 24, project dependent) months |
| Certification | ISO 9001 / 14001 / 45001; ABS (American Bureau of Shipping) |
Product FAQs
The converter assembly, the excitation transformer and any protection and control panels are equipment the cabin accommodates. They are customer-supplied, or integrated within the agreed scope under the Subsystem Integration and Finished Cabin Delivery tiers. What ETENZ builds is the enclosure, the mounting bases, the in-cabin interfaces and the climate, fire and security subsystems. Voltage, current and rating for that main equipment are fixed by the equipment supplier's technical agreement.
Size is worked back from the equipment layout and the transport conditions: the plan is set out first from the line-up length, cabinet depth and service aisle width, then checked against the limits at the destination. The unit shown here measures 11000 × 3300 × 3500 mm, wider than a standard shipping container, and moves as an out-of-gauge load. Confirming the transport method against destination limits sits with the project side; ETENZ provides the dimensions, weight and center-of-gravity data during design to support that check.
That is settled by the project heat-load calculation. Climate control combines ventilation with industrial air conditioning: intake louvers on the supply side of the line-up, exhaust fans discharging through the opposite wall, with ventilation carrying most of the load in normal conditions and the air conditioner covering hot or dusty environments. Cooling capacity is calculated from the equipment heat dissipation and the local design condition, so the equipment vendor's heat figures are needed as the sizing input.
Yes. The rating is confirmed against the cabin's layout and opening configuration, and both IP54 and IP55 can be built. Ventilation openings combine weather-angled louvers, a continuous rain hood and insect mesh, doors are sealed with compression gaskets around the full perimeter, and cable penetrations are sealed. Verification is by component-level protection certificates plus works inspection; no third-party whole-enclosure rating statement is issued.
As a minimum: the equipment list with types, overall dimensions, weights and heat dissipation; a layout intent or single-line diagram; cable entry direction and cable sizes; destination environmental conditions and corrosion requirement; and transport and lifting limits. Foundation drawings, fire and security requirements and a handover document list make it faster. With that in hand an outline and structural proposal can come first, ahead of the technical agreement.
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