E7-ST.3000 / E7-ST.6000 / E7-ST.9000 — Smart Transformer Station

All-in-one smart transformer stations E7-ST.3000 / 6000 / 9000 in 20-ft container. Factory-direct from China with fast delivery to Europe and worldwide.

Applicated Reference

Wind power Station

PV Power Station

Generator Factory

Island

Large-scale
Industrial User

All-in-one, containerized Smart Transformer Stations integrating LV panel, transformer, RMU and auxiliaries. Converts LV DC to MV AC for grid injection — ideal for utility PV plants and renewable power stations.

Technical Specification — Models

Unless otherwise stated, parameters apply to all models. Comparative values are listed per model below.

Input

Item	E7-ST.3000	E7-ST.6000	E7-ST.9000
Available inverters	E7-ST300KTL, E7-ST330KTL, E7-ST360KTL
Max. LV inputs	10	20	28
AC power	3630 kVA @30°C / 3300 kVA @40°C / 3000 kVA @50°C	7260 kVA @30°C / 6600 kVA @40°C / 6000 kVA @50°C	10164 kVA @30°C / 9240 kVA @40°C / 8400 kVA @50°C
Rated input voltage	800 V
LV switches — MCCB	MCCB (400A / 800Vac / 3P, 10 pcs)	MCCB (400A / 800Vac / 3P, 20 pcs)	MCCB (400A / 800Vac / 3P, 28 pcs)
LV switches — ACB	ACB (3200A / 800Vac / 3P, 1 pc)	ACB (3200A / 800Vac / 3P, 2 pcs)	ACB (4000A / 800Vac / 3P, 2 pcs)

Output

Item	E7-ST.3000	E7-ST.6000	E7-ST.9000
Rated output voltage	10–34.5 kV	20–34.5 kV	20–34.5 kV
Rated frequency	50 / 60 Hz
Transformer type	Oil-immersed, fully sealed, Dy11	Oil-immersed, fully sealed, Dy11y11
Transformer efficiency	>99% (standard); Tier-1 / Tier-2 optional
RMU type	SF6 gas-insulated
Auxiliary transformer	Dry-type, 5 kVA, 800/400 V, Dyn11, Class H
UPS	1 kVA, 30 minutes backup

Protection

Item	Specification
Transformer monitoring & protection	Oil level, temperature, pressure
Rated short-circuit breaking current	20 kA / 3 s
MV relay protection	50 / 51, 50N / 51N
LV surge protection	Type I+II
Protection degree	IP54 (LV/MV room); IP68 (transformer body)
Anti-corrosion class	C4 / C5 (optional)

General

Item	E7-ST.3000	E7-ST.6000	E7-ST.9000
Container dimensions	6058 × 2896 × 2438 mm (20-ft container)
Weight	<18 t	<24 t	<28 t
Operating temperature	−25°C ~ +60°C
Relative humidity	0–95%
Max operating altitude	1000 m (standard) / optional for >1000 m
Control device	CEM9000 or equivalent
Communication interface	RS485 / Ethernet
Protocol	Modbus-RTU / Modbus-TCP / IEC104
Color	RAL7035 (light gray)
Compliance	IEC60076, IEC62271-200/202, IEC61439, EN50588-1

Technical parameters are for reference; actual delivered configuration may vary.

Product Introduction

The product integrates LV panel, transformer, RMU and auxiliaries into a 20-foot container. It converts LV DC power to MV AC for grid injection, providing an all-in-one solution for PV power plants.

Advantages

Integrated & Economic: Prefabricated and pre-tested; simple on-site installation without internal cabling; standard container design for easy transport; high capacity reduces MV equipment count and plant CAPEX.
Efficient & Smart: Low power consumption; Tier-1/2 PEI efficiency; real-time monitoring and remote control for LV panel & RMU.
Stable & Reliable: IP54 (rooms) / IP68 (transformer body); C4/C5 anti-corrosion for harsh environments.
Grid Support: Compliant with IEC standards; MV up to 35 kV.

The technical parameters are for reference only; actual delivered products prevail.

Key Features

Integrated & Cost-Effective

Pre-fabricated and pre-tested; easy on-site installation with no internal cabling.
Standard containerized design for easy transportation.
High capacity that reduces the number of MV devices, saving overall plant investment.

Efficient & Intelligent

Low power consumption; Tier 1/2 PEI efficiency.
LV panel, transformer, and RMU monitored in real time; panel and RMU remotely controlled.

Stable & Reliable

IP54 protection for LV and MV rooms; IP68 for the transformer body.
Anti-corrosion protection C4/C5, suitable for harsh environments.

Worldwide shipping

We ship our equipment worldwide.
Contact us and we will solve any issue concerning logistics.