Products | MV SiC Power Modules & Components for SST Projects

Core Business

Medium-Voltage SiC Power Modules & Components

SiC power modules, power devices and key subsystems for medium-voltage power electronics and solid-state transformer development.

Solid State Transformer Power Electronics Module

SiC Module

MV SiC MOSFET Module — 3300 V Class

3300 V SiC MOSFET half/full-bridge modules for MMC, SST and medium-voltage drives.

Modern Power Electronics Manufacturing Facility

SiC Module

MV SiC MOSFET Module — 1700 V Class

1700 V SiC MOSFET modules with high-frequency capability for DAB and isolated converters.

SiC Module

SiC Schottky Diode Modules

1200 – 3300 V zero-recovery SiC diodes for freewheeling and rectifier stages.

Cloud Energy Management System Dashboard

Component

SiC Gate Driver Modules

Isolated gate drivers with short-circuit protection and wide-bandwidth feedback.

Component

DC-Link Capacitors

Low-inductance film capacitors for MV converter and SST DC-link stages.

Component

HF Transformers & Magnetics

High-frequency transformers and inductors for isolated DC-DC and SST power stages.

Component

Liquid & Air Cooling Assemblies

Cold-plate and forced-air thermal assemblies sized for SiC module dissipation.

Subsystem

Custom MV Power Subsystems

Integrated power units combining SiC modules, drivers, capacitors and cooling to your specification.

Application · Project Custom Solution

SST Solid State Transformer — For Project Custom Use Only

Complete solid-state transformer systems (100 kVA – 1 MVA and larger) are developed per project requirements. This is project-oriented custom development, not an off-the-shelf stock product. Each system is engineered around your voltage, capacity, control and site conditions, with prototype and pilot support.

SiC MOSFET Technology Efficiency ≥ 99% Bidirectional Power Flow Liquid / Air Cooling Custom Voltage / Capacity

Reference Ratings	100 kVA / 500 kVA / 1 MVA (2–10 MVA on project basis)
Voltage Classes	0.4 / 10 / 20 / 35 kV
Efficiency	≥ 99% (full load)
Switching Device	SiC MOSFET / IGBT
Key Functions	Voltage transformation & regulation, harmonic filtering, bidirectional power flow, DC interconnection
Standards	IEC 60076, IEC 61850, IEEE 1547
Availability	Project custom development — no stock inventory

Applications: mine underground power, renewable integration, data centers, smart distribution, traction systems.

View SST Solution Page Discuss a Project

Product Range

Medium-Voltage Power Electronics & Grid Equipment

Components and complete equipment from Nanjing Hongjing Smart Grid Technology — power quality, energy storage, modular substations, protection, power supply, EV charging and rental.

Hongjing

SPH-100L Line Protection Relay

Distance and overcurrent protection with auto-reclosing for MV distribution feeders.

Power Transformer Protection Relay Device

Hongjing

SPH-100T Transformer Protection

Differential and backup protection with temperature monitoring for power transformers.

Fiber Optic Differential Protection Relay

Hongjing

SPH-100LG Fiber Differential Protection

High-speed optical-fiber differential protection for critical lines.

Hongjing

SPH-100LH/S Ring Main Unit Protection

Overcurrent, earth-fault and overload protection for RMU switchgear.

Box Transformer Monitoring Control Device

Hongjing

SPH7300 Box Transformer Monitor

Integrated monitoring, measurement and protection for box transformers.

Hongjing

DTU Distribution Terminal Unit & SCADA

DTU/FTU/TTU terminals with fault detection and distribution automation.

Hongjing

Outdoor SVG Reactive Power Compensation

HV outdoor Static Var Generator for dynamic var compensation and voltage stability.

Hybrid Dynamic Reactive Power Compensation System

Hongjing

ZNSVG-T Hybrid Dynamic Compensation

Thyristor-switched capacitors + SVG hybrid for cost-effective compensation.

Hybrid Intelligent Capacitor Compensation System

Hongjing

ZNSVG-C Hybrid Intelligent Capacitor

SVG + capacitor hybrid with harmonic filtering for distribution networks.

Active Power Filter Harmonic Filtering Cabinet

Hongjing

ZNAPF Active Power Filter

Real-time harmonic detection and compensation up to the 50th order.

Phase Unbalance Automatic Regulation Device

Hongjing

ZNSPC-Z Phase Unbalance Regulator

Automatic three-phase unbalance regulation for LV distribution networks.

Hongjing

ASVG Advanced Static Var Generator

Enhanced ASVG series for mining, industrial and utility networks.

Coal Mine Modular Substation Prefabricated

Hongjing

10–110 kV Coal Mine Modular Substation

Explosion-proof, rapidly deployed modular substation for mining power supply.

Mobile Trailer Mounted Substation Vehicle

Hongjing

35 kV Mobile Substation

Trailer-mounted mobile substation for temporary power and emergency restoration.

Complete 10Kv Substation Solution Package

Hongjing

10 kV Complete Substation Solution

Integrated 10 kV package — transformer, switchgear, protection and auxiliary.

Prefabricated Modular Substation 35Kv 110Kv

Hongjing

35–110 kV Prefabricated Modular Substation

Large-capacity prefabricated substation with integrated automation.

Commercial Energy Storage Liquid Cooled Cabinet

Hongjing

HJESS Commercial Liquid-Cooled ESS

C&I liquid-cooled storage for peak shaving, demand management and backup.

Battery Management System Bms Controller

Hongjing

SPH801-BAMS Battery Management System

Cell-level monitoring, state estimation and safety protection for storage.

Hongjing

SPHEM610 / EMS Cloud Energy Management

Cloud-based energy management with real-time analytics and remote access.

Hongjing

SPH8300M Three-Phase PCS 50–500 kW

Modular bidirectional PCS with grid support functions for storage.

Outdoor Large Power Conversion System Megawatt

Hongjing

SPH8300 Outdoor PCS 2500–3450 kW

Megawatt-class outdoor PCS for utility-scale storage projects.

Outdoor Power Converter 1250Kw Energy Storage

Hongjing

SPH8300-1250K-B Outdoor PCS

1250 kW outdoor PCS for medium-scale storage applications.

Modular Power Conversion System 30Kw 150Kw

Hongjing

SPH8300 Modular PCS 30–150 kW

Compact plug-and-play PCS for residential and small commercial storage.

Megawatt Scale Energy Storage System Container

Hongjing

Megawatt-Scale Storage System

Complete MW-class storage integrating containers, PCS, transformer and EMS.

Campus Distributed Energy Storage System

Hongjing

Campus Distributed Storage System

Distributed storage for industrial parks and campuses with demand response.

Hongjing

EPS Emergency Power Supply

Reliable backup power with automatic transfer for critical loads.

Hongjing

UPS Uninterruptible Power Supply

Online double-conversion UPS with zero transfer time for critical infrastructure.

Hongjing

AC/DC Integrated Power System

Integrated rectifier, inverter and battery charger in one cabinet.

Temporary Power Supply Unit Grid Maintenance

Hongjing

Temporary Grid Power Supply

Portable quick-connect power units for maintenance and restoration.

Hongjing

High-Voltage Diesel Generator

MV-output diesel generator sets eliminating step-up transformers.

Hongjing

Silent Mini Power Generator

Ultra-quiet mini generator sets for noise-sensitive environments.

Dc Fast Charging Station Electric Vehicle

Hongjing

SPH700-DC Fast Charging Station

High-power DC fast charging supporting multiple standards.

Hongjing

AC Charging Solutions 7–22 kW

AC charging piles with fleet billing and solar-plus-storage integration.

Substation Equipment Rental Service Truck

Hongjing

Substation & Power Equipment Rental

Rental of transformers, switchgear and mobile substations.

Hongjing

EPC & Turnkey Power Projects

Engineering, procurement and construction for power projects.

Core Business · MV SiC Power

MV SiC MOSFET Module — 3300 V Class

Voltage Class	3300 V (V_DS)
Current	300 A – 800 A per module (project sizing)
Topology	Half-bridge / full-bridge / three-phase
Switching Frequency	10 – 50 kHz
Application	MMC, solid-state transformers, MV drives, grid converters

Typical use: medium-voltage power electronics where low switching loss and high-frequency operation are required.

Request a Quote

Core Business · MV SiC Power

MV SiC MOSFET Module — 1700 V Class

Voltage Class	1700 V (V_DS)
Current	200 A – 1200 A per module
Topology	Half-bridge / full-bridge
Switching Frequency	20 – 100 kHz
Application	DAB / CLLC isolated converters, SST stages, PCS

Typical use: high-frequency isolated DC-DC stages in SST and storage converters.

Request a Quote

Core Business · MV SiC Power

SiC Schottky Diode Modules

Voltage	1200 V / 1700 V / 3300 V
Features	Zero recovery, high-frequency capable, low thermal resistance
Application	Freewheeling diodes, rectifier stages, clamp circuits

Typical use: paired with SiC MOSFET modules in MV converters and SST stages.

Request a Quote

Core Business · SiC Components

SiC Gate Driver Modules

Isolation	Reinforced isolation, high CMTI
Protection	Short-circuit / desaturation detection, soft turn-off
Features	Wide-bandwidth feedback, adjustable gate voltage
Application	SiC MOSFET module driving in MV power electronics

Typical use: matched gate drive for 1200–3300 V SiC modules.

Request a Quote

Core Business · SiC Components

DC-Link Capacitors

Type	Metallized film, low-inductance
Voltage	900 V – 5000 V DC
Features	High ripple current, long lifetime, compact bus designs
Application	SST and MV converter DC-link stages

Typical use: DC-link energy storage and bus decoupling in MV converters.

Request a Quote

Core Business · SiC Components

HF Transformers & Magnetics

Frequency	20 – 100 kHz
Materials	Nano-crystalline / ferrite cores, Litz winding
Application	Isolated DC-DC stages in SST, DAB and PCS
Service	Custom design per electrical & thermal spec

Typical use: high-frequency magnetics for isolated SST power stages.

Request a Quote

Core Business · SiC Components

Liquid & Air Cooling Assemblies

Type	Liquid cold-plate / forced-air heat sinks
Design	Sized to module dissipation, low thermal resistance
Application	SiC module thermal management in MV converters

Typical use: thermal assemblies matched to MV SiC module losses.

Request a Quote

Core Business · Subsystem

Custom MV Power Subsystems

Scope	Integrated power unit: SiC modules + gate drivers + DC-link + cooling + busbar
Voltage	Up to 3300 V class, per project specification
Engineering	Topology consultation, prototype build, test support
Application	SST stages, MV drives, grid converters, storage PCS

Typical use: when a project needs a complete, tested power block rather than individual components.

Discuss a Project