VicRuns VD83H

Cabinet-built, high-voltage frequency converter for direct drive of 3.3–10 kV motors — no step-up transformer required. Standard 6 kV and 10 kV platforms, with intermediate voltages available on request.

Sole Agent — VicRuns High-Voltage Cabinet Drive 6 kV & 10 kV Standard Custom 3.3–10 kV IP30
VicRuns VD83H high-voltage cabinet frequency converter
Voltage & Capacity Range
220 kW – 5,000 kW
6 kV Class — VD83A/H-060T (up to 6300 kVA)
220 kW – 13,000 kW
10 kV Class — VD83A/H-100T (up to 15600 kVA)
3.3 kV – 10 kV
Custom voltage classes available on request
Key Features
Near-Perfect Sine Wave Output

Voltage-source, cell-series (cascaded H-bridge) topology using phase-shift superposition produces an almost ideal sine wave — no filter, output reactor, or step-up transformer required.

Instant Power-Loss Ride-Through

If input voltage sags or is lost for up to 300ms, the output continues tracking motor speed so DC bus voltage stays above the under-voltage trip point, keeping the drive running.

Power Cell Bypass Technology

A faulty power cell is automatically detected and bypassed in milliseconds, with matching cells on the other phases switched in to keep three-phase output balanced.

Triple-Redundant Control Power

Control power is backed by the phase-shift transformer secondary winding, a parallel mains feed, and UPS/supercapacitor backup — with no switchover time between sources.

2nd-Generation Power Cells

VD83H power cells use a composite housing that is roughly 40% lighter and 51% smaller than the previous generation, for higher power density and easier maintenance.

Flexible Remote Communication

Supports Modbus, Profibus, DeviceNet, and Interbus for local, remote, and SCADA/DCS-level control, parameter setting, and monitoring.

System Composition
Transformer CabinetPhase-shift isolation transformer, multi-pulse rectification, H-class insulation
Power CabinetSeries-connected power cells forming a Y-connected multilevel output
Control CabinetDual DSP + FPGA three-core control, V/F, vector, and DTC control modes
Cooling FansRedundant, CFD-optimized forced air cooling for high reliability
Touchscreen HMIColor touchscreen, Chinese/English interface, status & fault display
Bypass CabinetOptional integrated manual or automatic bypass, compact footprint
Technical Specifications
Control ModesV/F control · Sensorless vector control (SVC) · Vector control with PG (FVC) · DTC available
Applicable MotorThree-phase standard high-voltage motors
Output Voltage Range0 ~ 3 / 6 / 10 kV
Output Frequency Range0 ~ 120 Hz
System Efficiency> 97%
Power Factor> 0.96 (load > 20%), no compensation device required
Overload Capacity150% rated current for 60s · 200% rated current for 1s
Harmonic / Current DistortionComplies with GB/T 14549-93 and IEEE519-1992 power quality standards
Rated Input Voltage & Range3 / 6 / 10 kV (+15% ~ −45%)
Rated Frequency & Range50 Hz ± 10%
Start Frequency1 ~ 30 Hz
Frequency Resolution0.01 Hz
Acceleration / Deceleration Time0.1 ~ 3600 s
DC BrakingStart frequency 0~30Hz · braking time 0~600s · braking current 0~100% rated current
Excitation BrakingStart frequency 0~50Hz · braking time 0~600s · braking current 0~100% rated current
Voltage Imbalance Rate< ±3%
Control Power SupplyAC380V, three-phase four-wire
Protection RatingIP30 (higher ratings available on request)
Cooling MethodForced air cooling
Main Control Platform1× System DSP + 1× Control DSP + 1× FPGA, BGA-packaged CPU, 150MHz / 150MIPS
Product Functions
Instant Power-Loss Ride-ThroughContinues running through sags/outages up to 300ms
Speed-Tracking Restart (Flying Start)Detects actual motor speed and restarts without overcurrent
Multi-Speed (PLC) OperationUp to 16 speed segments with individually settable ramp rates
Built-In PID ControllerConfigurable PID for flow, pressure, and temperature process control
Energy-Saving CalculationTracks energy saved and cost savings from time and tariff inputs
Bypass Configuration Options
Manual Bypass

Three high-voltage isolating switches (QS1, QS2, QS3) with mechanical interlock. Switching between line-frequency and VFD operation requires manual intervention.

Automatic Bypass (with Isolation)

Three vacuum contactors (KM1, KM2, KM3) plus isolating switches QS1/QS2. On a drive fault, KM3 switches the motor to line-frequency power automatically; QS1/QS2 isolate the drive for safe maintenance.

Automatic Bypass

Three vacuum circuit breakers (QF1, QF2, QF3) with electrical interlock. On a drive fault, QF3 automatically switches the motor over to line-frequency operation.

Model Naming Convention
ExampleVD83H-100T/800-□□
SeriesVD83 — high-voltage frequency converter series
GenerationH — 2nd generation · blank — 1st generation
Voltage Class (kV)060 — 6 kV · 100 — 10 kV
Power SupplyT — three-phase AC
Rated Capacitye.g. /800 — 800 kVA
Cell BypassN — cells without bypass · Y — cells with bypass
System Bypassblank — no bypass · A — automatic whole-unit bypass · M — manual whole-unit bypass
Model & Capacity Selection
6 kV Class — VD83A / VD83H-060T
ModelRated Capacity (kVA)Output Current (A)Adaptable Motor (kW)Weight (t)
VD83A-060T/315315302501.4
VD83A-060T/355355342801.4
VD83A-060T/400400383151.4
VD83A-060T/450450433551.7
VD83A-060T/500500494001.7
VD83A-060T/560560554501.7
VD83A-060T/630630615002.1
VD83A-060T/710710685602.1
VD83H-060T/800800776302.6
VD83H-060T/900900877102.6
VD83H-060T/10001000968003.1
VD83H-060T/112011201089003.1
VD83H-060T/1250125012010003.5
VD83H-060T/1400140013511203.5
VD83H-060T/1600160015412503.6
VD83H-060T/1800180017314004.0
VD83H-060T/2000200019216004.6
VD83H-060T/2250225021718004.7
VD83H-060T/2500250024120005.0
VD83H-060T/2800280026922505.5
VD83H-060T/3150315030325008.1
VD83H-060T/3550355034128008.6
VD83H-060T/4000400038531508.6
VD83H-060T/45004500430355012.6
VD83H-060T/50005000480400012.6
VD83H-060T/56005600540450013.0
VD83H-060T/63006300610500013.3
10 kV Class — VD83A / VD83H-100T
ModelRated Capacity (kVA)Output Current (A)Adaptable Motor (kW)Weight (t)
VD83A-100T/280280162202.5
VD83A-100T/315315182502.5
VD83A-100T/355355202802.6
VD83A-100T/400400233152.6
VD83A-100T/450450263552.6
VD83A-100T/500500294002.6
VD83A-100T/560560324502.6
VD83A-100T/630630365002.8
VD83A-100T/710710415602.9
VD83A-100T/800800466303.0
VD83A-100T/900900527103.2
VD83A-100T/10001000588003.4
VD83A-100T/11201120659003.6
VD83A-100T/125012507210003.8
VD83H-100T/140014008111204.7
VD83H-100T/160016009212504.9
VD83H-100T/1800180010414005.1
VD83H-100T/2000200011516005.3
VD83H-100T/2250225013018005.5
VD83H-100T/2500250014420005.7
VD83H-100T/2800280016222407.4
VD83H-100T/3000300017324007.7
VD83H-100T/3150315018225007.8
VD83H-100T/3500350020228007.9
VD83H-100T/3750375021730008.0
VD83H-100T/4000400023131508.5
VD83H-100T/4500450026035508.5
VD83H-100T/5000500028840008.8
VD83H-100T/5250525030342509.3
VD83H-100T/56005600323450011.2
VD83H-100T/63006300364500012.0
VD83H-100T/70007000404560013.7
VD83H-100T/80008000462630015.1
VD83H-100T/90009000520710016.3
VD83H-100T/1000010000577800017.4
VD83H-100T/1125011250650900018.0
VD83H-100T/12500125007221000019.0
VD83H-100T/13750137507941120021.0
VD83H-100T/14500145008371250023.0
VD83H-100T/15600156009001300025.0

Cabinet dimensions scale with capacity (from roughly 1610×1430×2400mm up to 11350×1600×3080mm). Need a voltage class between 3.3 kV and 10 kV, or a capacity outside these tables? Contact us — custom-engineered ratings are available.

Application-Specific Solutions
Belt Conveyor HV Drive SolutionMaster–slave multi-drive synchronization over CAN bus for large, distributed conveyor systems
Large-Load Soft-Start SolutionFor blast furnace fans, main extraction fans, and compressors — smooth starting with low inrush current
Banbury / Internal Mixer HV DriveDTC control for high speed stability, fast torque response, and large starting torque
Typical Applications
MiningMain ventilation fans, belt conveyors, mine hoists, gas extraction pumps
Power GenerationInduced/forced draft fans, primary & booster fans, boiler feed & circulating water pumps
MetallurgyBlast furnace & dust removal fans, high-temperature fans, slurry & circulating water pumps
CementKiln head/tail, high-temperature, raw mill, cement mill, and coal mill circulating fans
PetrochemicalMain pipeline, water injection, submersible, brine, and descaling pumps, exhaust fans
Water Supply & TreatmentSewage, purification, and clean water pumps
Operating Environment & Ordering Information
Ambient Temperature−15°C ~ +55°C
Relative Humidity≤ 90% (at 25°C), no condensation
Altitude≤ 2000 m
Installation Tilt≤ 5°
Site RequirementsNo explosion hazard, severe vibration/shock, chemical corrosion, or conductive dust; rain and lightning protection provided
Please Provide When OrderingModel & rated specification · driven motor/system parameters · load type & characteristics · installation, cabinet-lineup, and electrical clearance requirements · any special requirements in the contract/technical agreement
Service & Support
Localized Spare Parts
Local Dedicated Maintenance Engineers
Full System Solution Design
Installation & Commissioning Support
Upgrade & Retrofit Support
24x7 Customer Response Center
Downloads
▪VD83 Series High-Voltage Frequency Converter Catalogue (PDF)
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Need a 3.3–10 kV custom voltage class, or help sizing a VD83H for your motor? Send us an inquiry and our team will get back to you shortly.