500 kVA Dry-Type Transformer
Request a 500 kVA dry-type transformer quotation for your project. For a 500 kVA dry-type inquiry, decide which requirements belong to the transformer enclosure and which belong to the room. Protection degree alone does not describe ventilation, access or fire-design responsibilities. Confirm the voltage ratio, installation and accessory scope against the actual duty; the fields below distinguish the requested capacity from project-specific engineering inputs.
- Rated capacity500 kVA
Specifications
500 kVA - Reference schedule for quotation · Revision 2. Confirmed values apply as listed. Configuration options and project confirmation items are settled in the quotation for your specification.
| Parameter | Value | Status |
|---|---|---|
| Rated capacity | 500 kVA | Confirmed |
| Reference data basis | IMEFY Tier 2 cast-resin 500 kVAThird-party published reference design for preliminary comparison, not Zoe guaranteed performance. Source and limitations are in the linked reference sheet. | Project confirmation |
| Reference voltage ratio | 10 / 0.4 kV10/0.4 kV is a reference selection within the source ranges. Reference facts are not Zoe tested performance. | Project confirmation |
| Reference frequency | 50 HzSelected reference duty, not a dual-frequency nameplate. The project offer must match the actual supply. | Project confirmation |
| Reference phases | Three phaseBalanced three-phase reference selection. | Project confirmation |
| Reference connection group | Dyn11 reference selection (Dyn5 also listed)Compare neutral, earthing, phase displacement and parallel-operation requirements before ordering. | Project confirmation |
| Reference cooling | AN (natural air)Reference arrangement only. No fan-assisted overload allowance is implied. | Project confirmation |
| Reference tapping | De-energized HV links, +/-2 x 2.5% reference selectionAdjustment is de-energized; not automatic on-load voltage regulation. | Project confirmation |
| Reference impedance | 6%As listed for the source design; verify the test basis in the project offer. | Project confirmation |
| Reference no-load loss | 812 WPublished value for the named reference design; not a Zoe test result or purchase guarantee. | Project confirmation |
| Reference load loss | 5,630 W at 120 CUse the listed 120 C correction basis. BEZ also publishes a separate 75 C number; do not interchange them. | Project confirmation |
| Reference overall envelope | 1550 x 820 x 1650 mmSource A x B x C envelope without enclosure. A new enclosure, terminal box or alternative winding design changes size and mass. | Project confirmation |
| Reference total mass | 1,750 kgTotal mass of the cited reference design. Shipping splits and the offered assembly may differ. | Project confirmation |
| Reference enclosure | Without enclosure (IP00)The published envelope excludes an added protective enclosure. Room and project protection requirements govern the offered assembly. | Project confirmation |
| Reference site conditions | Up to 40 C ambient; altitude up to 1000 mSource normal-service limits, not approval for all sites. Higher altitude, heat, harmonics or unusual duty require a different design review. | Project confirmation |
| LV current calculation at 400 V | Approximately 722 ACalculated from 500 kVA / (sqrt(3) x 0.4 kV). This is not a cable or protection selection. | Project confirmation |
- Confirmed Applies to this configuration as listed
- Configuration option Choose in your inquiry; reviewed for the quotation
- Project confirmation Fixed by your specification and the technical agreement
Attach your specification or nameplate and the reply will follow this parameter schedule.
Structure And Details
Additional views of 500 kVA - Reference schedule for quotation. Final outline, terminals and fittings follow the agreed configuration.
Where This Configuration Fits
For a 500 kVA dry-type inquiry, decide which requirements belong to the transformer enclosure and which belong to the room. Protection degree alone does not describe ventilation, access or fire-design responsibilities.
Defining enclosure and room responsibilities: State the room environment and any required enclosure protection. Ask for the effect of the offered enclosure on dimensions, cooling and maintenance access; do not transfer a rating from a different assembly. A capacity match alone does not establish electrical compatibility or suitability for the installation.
Installation And Operating Conditions
Check these points before fixing the layout or approving the foundation. Final clearances and interfaces come from the configuration-specific outline.
Installation And Interfaces
State the room environment and any required enclosure protection. Ask for the effect of the offered enclosure on dimensions, cooling and maintenance access; do not transfer a rating from a different assembly.
Provide a dimensioned room layout, delivery openings, floor-loading limits and the HV/LV cable or busduct approach. Coordinate enclosure airflow and maintenance access with the room design; dimensions from another unit are not an installation approval.
Operating Conditions
Describe the ambient temperature range, altitude, expected load profile and exposure to dust, moisture, salt or other site conditions. Include important starting events and nonlinear loads. These inputs can change the engineering review even when the requested capacity stays the same.
For indoor service, provide the ventilation concept and nearby heat sources. If fans or temperature monitoring are requested, define the auxiliary supply and alarm/trip interfaces. Room heat removal must be coordinated with the quoted losses.
What The Quotation Covers
To prepare a 500 kVA offer with enclosure and building interfaces separated, send the requested 500 kVA rating, HV/LV voltages, frequency, quantity and project destination. Attach the specification or provide its relevant requirements in your message.
Separate the transformer and agreed accessories from switching equipment, external cables or busduct, foundations, installation and commissioning by others. Request a parameter and deviation schedule with the quotation, then agree the outline and document stages for the order.
Documents
-
Reference parameter sheet and envelope · Rev. REF-1
Attributed third-party reference values and a simplified bounding envelope. Not a factory-guaranteed datasheet, fabrication drawing or installation approval.
Download
How To Start Your Inquiry
Distributors: state the order quantity, destination and which specifications must repeat across units. EPC teams: include the technical schedule, document milestones and scope boundaries. Plant teams: provide the existing nameplate and changed load or installation conditions for replacement work.
If the voltage or installation arrangement is not yet fixed, describe what is known and ask for selection advice. No configuration needs to be preselected to start an inquiry.
Send the specification you have today. A partial one is fine: the reply lists what still needs confirming before the quotation is comparable.
Request a QuotationBefore You Send The Inquiry
Is 500 kVA the same as 500 kW?
No. kVA is apparent power; kW depends on power factor. At an assumed power factor of 0.8, 500 kVA corresponds to 400 kW. This calculation is not a complete sizing check: starting duty, harmonics, ambient conditions and operating requirements also need review.
What LV current should I use when discussing this 500 kVA unit?
For a balanced three-phase calculation, 500 kVA gives approximately 722 A at 400 V or 696 A at 415 V. State the actual secondary voltage. Cable, busbar, switchgear and protection selection require the applicable design calculations and installation conditions.
What should be settled before comparing quotations?
Use a 500 kVA offer with enclosure and building interfaces separated as the comparison basis. State the room environment and any required enclosure protection. Ask for the effect of the offered enclosure on dimensions, cooling and maintenance access; do not transfer a rating from a different assembly.
Are dimensions, losses and accessories fixed by this capacity page?
No. Request the values and included accessories for the proposed voltage, construction and cooling duty. Keep the electrical schedule, outline and commercial scope tied to the same offered configuration and revision.
Send Your Project Requirements
Share what you know about the project and the reply will follow the parameter schedule above. No configuration selected means you want selection advice, which is fine.
- Rated capacity and voltage ratio
- Frequency, quantity and destination
- Project specification, or the existing nameplate for a replacement
- Site conditions, room or outdoor layout and delivery route
