Integrated Power Conversion and Voltage Boosting Cabinet

Integrated power conversion and MV step-up for energy-storage projects.

Wafr Integrated Power Conversion and Voltage Boosting Cabinets provide an integrated interface between battery-energy-storage systems and medium-voltage utility or facility networks.

The system integrates bidirectional power conversion, transformer, medium-voltage switching, protection, controls and communications into a coordinated factory-engineered package.

Systems are suitable for utility-scale and commercial/industrial energy-storage projects requiring connection to Canadian medium-voltage distribution systems.

Key Ratings

Parameter	Standard Ratings
Application	Utility-scale / C&I BESS
DC voltage	Up to 1500 Vdc
PCS operation	Bidirectional
System power	1 MW to 6.25 MW+ modular
LV AC voltage	600 V / 690 V / project specific
MV grid voltage	12.47 / 13.2 / 13.8 / 24.9 / 34.5 kV
MV equipment class	15 / 27 / 38 kV
Frequency	60 Hz
Transformer	Liquid-filled or dry-type
MV switching	Vacuum circuit breaker
Reactive power	Four-quadrant capability
Power factor	Programmable
Communications	IEC 61850 / Modbus TCP / DNP3
Installation	Outdoor skid or containerized
Grid connection	Utility / industrial

Available Configurations

System Architecture

Battery → Bidirectional PCS → Step-Up Transformer → MV Switchgear → Utility/Grid

Power Conversion

Bidirectional PCS, LV AC distribution at 600 V / 690 V or project specific

Transformer and Switching

Liquid-filled or dry-type transformer with vacuum circuit breaker

Installation

Outdoor skid or containerized

Communications

IEC 61850 / Modbus TCP / DNP3

Product Composition

Typical system architecture: Battery System → Bidirectional PCS → Step-Up Transformer → MV Switchgear → Utility/Grid. The integrated package can include:

Bidirectional power conversion system
LV AC distribution
Step-up transformer
Medium-voltage switchgear
Protective relays
Metering
SCADA
Local controller
Auxiliary power
HVAC
Fire detection interface
Communication gateway

Product Features

Grid-Support Functions

Depending on the PCS and utility requirements, available functionality includes:

Active power control
Reactive power control
Volt/VAR control
Frequency response
Power-factor control
Ramp-rate control
Peak shaving
Energy shifting
Demand management
Renewable-energy firming
Frequency regulation
Voltage support
Black-start capability where specified
Low-voltage ride-through
High-voltage ride-through
Frequency ride-through

Protection

AC overcurrent
DC overcurrent
Ground-fault protection
Over/undervoltage
Over/underfrequency
Transformer differential
Transformer temperature
Breaker failure
Anti-islanding
Arc-flash detection
Surge protection
DC isolation monitoring
Emergency shutdown

SCADA & Communications

IEC 61850
Modbus TCP/IP
DNP3
Ethernet
Utility SCADA
Plant EMS
BESS EMS
Remote monitoring
Cloud gateway where specified

Canadian Environmental Configuration

Cold-weather operation
Insulated enclosure
HVAC
Low-temperature heating
Anti-condensation heaters
Snow and ice protection
Corrosion-resistant enclosure
Outdoor Canadian environmental design
Seismic configuration where specified

Standards & Certification

Wafr Integrated Power Conversion and Voltage Boosting Cabinets are certified and tested to applicable Canadian and North-American standards, including:

ANSI/CAN/UL 9540 — Energy Storage Systems and Equipment
ANSI/CAN/UL 9540A — Thermal Runaway Fire Propagation Testing, where battery systems are included
CSA C22.2 No. 107.1 — Power Conversion Equipment
UL 1741 — Inverters, Converters, Controllers and Interconnection System Equipment
IEEE 1547 — Interconnection and Interoperability of Distributed Energy Resources
IEEE 1547.1 — Conformance Test Procedures
CSA C22.2 No. 31 — Medium-Voltage Switchgear Assemblies
IEEE C37.20.2 — Metal-Clad Switchgear
IEEE C37.20.7 — Arc-Resistant Switchgear where specified
Applicable CSA transformer standards
CSA C22.1 — Canadian Electrical Code, Part I

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