Smart Prefabricated Compact Transformer Station

Attributes Description Documentation Resource Library

Key attributes

Brand	ROCKWILL
Model NO.	Smart Prefabricated Compact Transformer Station
Rated frequency	50Hz
Maximum LV AC Inputs	34kV
Series	YBS

Description

The Smart Transformer Station is a core component of modern power systems, combining advanced sensing, communication, computing, and automation. Its primary equipment performs real-time self-diagnostics, while the secondary system employs a fully digital and networked architecture.

By enabling data-driven monitoring, predictive fault analysis, and automatic control, the station enhances grid stability, boosts overall efficiency, reduces operational costs, and drives the industry’s green, intelligent evolution.

Key Features

Simplicity and Convenience: The Smart Transformer Station features simple structure, easy installation and convenient daily maintenance.
High Efficiency and Energy Saving: The Transformer Station adopts optimized design to lower energy loss and achieve outstanding energy-saving performance.
Intelligence and Advancement: Built-in intelligent monitoring system makes the Smart Transformer Station realize automatic operation, fault early warning and remote management.
Reliability and Durability: The Transformer Station adopts high-quality materials and strict manufacturing process, ensuring stable performance and long service life.

Technology parameters

YBS-3400

Category	Item	Specification
Input	Maximum LV AC Inputs	17
	AC Power	3,400 kVA
	Rated Input Voltage	800 V
	LV Main Switches	ACB (2,900 A / 800 V / 3P, 1 pcs), MCCB (250 A / 800 V / 3P, 17 pcs)
Output	Rated Output Voltage	11 kV, 13.8 kV, 15 kV, 20 kV, 22 kV, 30 kV, 33 kV, 34.5 kV, 35 kV
	Frequency	50 Hz / 60 Hz
	Transformer Type	Oil-immersed, Conservator Type
	Transformer Cooling Type	ONAN
	Transformer Tappings	±2 x 2.5%
	Transformer Oil Type	Mineral Oil (PCB-Free)
	Transformer Vector Group	Dy11
	Transformer Min. Peak Efficiency Index	Tier 1 or Tier 2 in Accordance with EN 50588-1
	RMU Type	SF6 Gas Insulated
	RMU Transformer Protection Unit	MV Vacuum Circuit Breaker Unit
	RMU Cable Incoming / Outgoing Unit	Direct Cable Unit or Cable Load Break Switch Unit
	Auxiliary Transformer	Dry Type Transformer, 5 kVA, Dyn11
	Output Voltage of Auxiliary Transformer	400 / 230 Vac or 220 / 127 Vac
Protection	Transformer Monitoring & Protection	Oil Level, Oil Temperature, Oil Pressure and Buchholz
	Protection Degree of MV & LV Room	IP 54
	Internal Arcing Fault Classification of YBS	IAC-A 20kA/1s
	MV Relay Protection	50/51, 50N/51N; Type I+II
	Anti-rodent Protection	C5 Medium in accordance with ISO 12944
Features	2 kVA UPS	Optional
Features	MV Surge Arrester for MV VCB	Optional
General	Dimensions (W x H x D)	6,058 x 2,896 x 2,438 mm (20' HC Container)
	Weight	< 15 t
	Operating Temperature Range	-25℃ ~ 60℃
	Relative Humidity	0% ~ 95%
	Max. Operating Altitude	1,000 m / 1,500 m
	MV-LV AC Connections	Prewired and Pretested, No Internal Cabling Onsite
	LV & MV Room Cooling	Smart Cooling without Air-across for Higher Availability
	Communication	Modbus-RTU, Preconfigured with Smartlogger3000B
	Applicable Standards	IEC 62271-202:2022, EN 50588-1, IEC 60076-1, IEC 62271-200, IEC 61439-1

YBS-6800

Category	Item	Specification
Input	Maximum LV AC Inputs	34
	AC Power	6,800 kVA
	Rated Input Voltage	800 V
	LV Main Switches	ACB (2,900 A / 800 V / 3P, 2×1 pcs), MCCB (250 A / 800 V / 3P, 2×17 pcs)
Output	Rated Output Voltage	11 kV, 13.8 kV, 15 kV, 20 kV, 22 kV, 30 kV, 33 kV, 34.5 kV, 35 kV
	Frequency	50 Hz / 60 Hz
	Transformer Type	Oil-immersed, Conservator Type
	Transformer Cooling Type	ONAN
	Transformer Tappings	±2×2.5%
	Transformer Oil Type	Mineral Oil (PCB-Free)
	Transformer Vector Group	Dy11-y11
	Transformer Min. Peak Efficiency Index	Tier 1 or Tier 2 In Accordance with EN 50588-1
	RMU Type	SF6 Gas Insulated
	RMU Transformer Protection Unit	MV Vacuum Circuit Breaker Unit
	RMU Cable Incoming / Outgoing Unit	Direct Cable Unit or Cable Load Break Switch Unit
	Auxiliary Transformer	Dry Type Transformer, 5 kVA, Dyn11
	Output Voltage of Auxiliary Transformer	400 / 230 Vac or 220 / 127 Vac
Protection	Transformer Monitoring & Protection	Oil Level, Oil Temperature, Oil Pressure and Buchholz
	Protection Degree of MV & LV Room	IP 54
	Internal Arcing Fault Classification of YBS	IAC-A 20kA/1s
	MV Relay Protection	50/51, 50N/51N; Type I+II
	Anti-rodent Protection	C5 Medium in accordance with ISO 12944
Features	2 kVA UPS	Optional
Features	MV Surge Arrester for MV VCB	Optional
General	Dimensions (W × H × D)	6058 × 2896 × 2438 mm (20' HC Container)
	Weight	< 22 t
	Operating Temperature Range	-25℃ ~ 60℃（-13℉ ~ 140℉）
	Relative Humidity	0% ~ 95%
	Max. Operating Altitude	1,000 m / 1,500 m
	MV-LV AC Connections	Prewired and Pretested, No Internal Cabling Onsite
	LV & MV Room Cooling	Smart Cooling without Air-across for Higher Availability
	Communication	Modbus-RTU, Preconfigured with Smartlogger3000B
	Applicable Standards	IEC 62271-202:2022, EN 50588-1, IEC 60076-1, IEC 62271-200, IEC 61439-1

Application Scenario

The Smart Transformer Station are widely applied in new energy power plants, urban and rural grid renovation, industrial parks, commercial complexes and residential communities, providing safe, stable and intelligent power distribution and transmission support for various power engineering projects.

Schematic Diagram：

YBS-3400

YBS-Smart Transformer Station

YBS-6800

YBS-Smart Transformer Station

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Pricing calculator

Model

YBS-6800

YBS-3400

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Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.

The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.