# Siemens Energy Mobile Substation 30 MVA 230/13.8 kV

> Published Siemens Energy mobile substation configuration for emergency restoration and temporary grid connection.

> SKU: VF-SIE-MOB-30M-230K | Brand: Siemens Energy | Category: Power & Energy Equipment / Transformers / Compact Substations, Kiosks & Pad-Mounted / Mobile Emergency Substations

**Voltformer canonical:** https://voltformer.com/product/siemens-energy-mobile-substation-30-mva-230-kv - markdown version: https://voltformer.com/product/siemens-energy-mobile-substation-30-mva-230-kv.md

## Overview

Siemens Energy Mobile Substation 30 MVA 230/13.8 kV is intended for Natural Disasters, Transformer Outages & Temporary Site Power. Configured electrical data: 30 MVA, 230/13.8 kV primary/secondary voltage, 50 Hz, 3-phase, vector group Dyn1yn1 and short-circuit impedance 11%. Construction: Copper (Cu-Cu); cooling: ONAN/ONAF; loss class: Mobile Substation High Duty Standard. These values support preliminary engineering selection; verify insulation levels, thermal limits, short-circuit duty, installation conditions and applicable standards against the manufacturer datasheet and the site study.

- **Application:** Natural Disasters, Transformer Outages & Temporary Site Power
- **Target industries:** Disaster & Emergency Management, Mining Fields & Operations, Temporary Construction Sites
- **Brand:** [Siemens Energy](https://voltformer.com/brand/siemens-energy.md) - The embodiment of German engineering excellence; Siemens Energy sets the industry standard with GEAFOL® cast-resin dry-type transformers, ester-oil network units and transmission-level autotransformer
- **Category:** [Power & Energy Equipment](https://voltformer.com/catalog.md) / **Transformers** / [Compact Substations, Kiosks & Pad-Mounted](https://voltformer.com/category/compact-substations-and-padmounted.md): Monolithic concrete kiosks, pad-mounted outdoor transformers and mobile emergency substations. / [Mobile Emergency Substations](https://voltformer.com/category/compact-substations-and-padmounted/mobile-emergency-substations.md)

## Technical Specifications

| Property | Value |
|---|---|
| Rated power | 30 MVA |
| Primary / secondary voltage | 230 kV / 13.8 kV (DETC - 230/13.8 or 230/23 kV selectable) |
| Frequency / phases | 50 Hz / 3-phase - Dyn1yn1 |
| Short-circuit impedance (Uk) | 11% |
| No-load loss P0 | 15.75 kW |
| Load loss Pk | 108.8 kW |
| Calculated efficiency (power factor = 1) | 99.5867% at 100% load; 99.7146% at 50% load |
| Loss class | Mobile Substation High Duty Standard |
| Windings | Copper (Cu-Cu) - cooling: ONAN/ONAF - insulation: Class A |
| Temperature rise | 65 K - sound pressure: 65 dB(A) |
| Mass and dimensions | 78000 kg - 14500×2800×4200 mm |
| Enclosure | IP55 / road transport compatible - wheel gauge: 2400 mm |
| LI / AC withstand | 575 kV peak / 276 kV rms - partial discharge: 20 pC |
| Environment | -25°C / +40°C; altitude ≤ 1000 m |
| Core steel | CRGO Laser-Treated Grain-Oriented Silicon Steel (23ZDMH85 / Baosteel B23R085) |
| Bushings / terminals | Dead-Front 600A / 200A Load Break Switch Bushing |

## Standards

- IEC 60076
- IEC 62271-200
- IEEE C57.12.00

## Accessories

**Included:** 3AP1 DTC hybrid switchgear interface, Protection and control systems, Auxiliary winding
**Optional:** 230/23 kV configuration, E-house shelter, Ester-filled transformer

## Official sources

- https://assets.siemens-energy.com/dam/01d1bc9b-bd06-471b-9f86-b39c00c3f3da/Mobile-substatation-pdf_Original%20file.pdf
- https://www.siemens-energy.com/us/en/home/products-services/product/prefabricated-power-solutions.html
- https://www.siemensenergy.com/global/en/home/products-services/product-offerings/transformers.html

- **Source scope:** exact-order-code
- **Last reviewed:** 2026-09-13

Manufacturer family/application source. The Siemens Energy mobile-substation sheet publishes a 30 MVA, 230 kV/13.8 kV or 23 kV, Dyn1yn1 configuration with 245 kV switchgear and ONAN/ONAF cooling. Confirm the selected service package and regional grid code. Exact order code, guaranteed losses, dimensions, insulation level, cooling stage, winding material and project options must be confirmed with the OEM before procurement or an SLD study.

## Pricing & Logistics

- Pricing type: RFQ (Project Engineering) - Indicative range: $780,000 – $940,000 USD
- Delivery time: 2–8 weeks (may vary depending on technical configuration, factory capacity and destination) - Warranty: 36 months
- Compliance candidates: IEC 60076, IEC 62271-200, IEEE C57.12.00. Verify applicability and conformity against the exact offered model and project jurisdiction.

## RFQ

Request a formal factory quotation via Voltformer RFQ:

```json
POST https://voltformer.com/api/v1/rfq
{"companyName":"Example Energy","email":"procurement@example.com","items":[{"skuOrId":"VF-SIE-MOB-30M-230K","quantity":1}]}
```

Full catalog JSON: https://voltformer.com/agent-catalog.json - OpenAPI: https://voltformer.com/openapi.json