Wolong WD5180 Series High-Performance Compact High-Voltage Variable Frequency Drive

Output power, speed, efficiency, power factor, and torque for the same model remain constant regardless of voltage; only the rated current is recalculated as I = IN × 380 / U. Dual-voltage motor models (380/660V and 660/1140V) are switched via terminal block jumpers. The 1140V model is designed for high-voltage underground coal mine applications and requires verification against its explosion-proof certification scope. Variable frequency drives (VFDs) are categorized by supply voltage; please specify the site's supply voltage, number of phases, and frequency when ordering.

This process is based on the K Electric VFDs project technical clarification and overseas delivery practices, with timelines anchored to the contract effective date. Specific arrangements for drawing sign-off, shipment, and site arrival shall be governed by the technical agreement between both parties.

1. 01

   Contract Signing and Project Kickoff

   Week 0Responsible Party:both parties

   • Confirm technical agreement, scope of supply, and delivery boundaries.
   • Manufacturer to provide project execution plan and contact list
   • Owner provides on-site basic data and existing medium-voltage system protection logic

   Phase Deliverables:Executed Contract, Technical Agreement, and Project Execution Plan

2. 02

   Drawing Approval and Sign-off

   Contract post 2 weeksResponsible Party:Manufacturer

   • Produce GA drawings, single-line diagrams, wiring diagrams, schematic diagrams, logic diagrams, and cable schedules.
   • Submit cabinet dimensions, room space, and HVAC requirements
   • Submit foundation and structural drawings (including installation dimensions and civil engineering requirements)
   • Commence operations only after joint confirmation by the Owner/Design Institute.

   Phase Deliverables:Counter-signed drawings and cable schedule

3. 03

   Protection Coordination and Interface Confirmation

   2–4 weeks after contractResponsible Party:both parties

   • Perform protection coordination calculations with the existing medium-voltage system.
   • Confirm external interface requirements and control power requirements
   • Confirm connection method for fire detection and extinguishing protection signals (smoke detector/alarm signal to VFD)
   • Submit the complete signal exchange list before shipment.

   Phase Deliverables:Protect Coordination Records and Signal Exchange Lists

4. 04

   Production and Factory Testing

   8–14 weeks after drawing coordinationResponsible Party:Manufacturer

   • Organize units and complete machine production based on coordinated drawings.
   • Complete unit testing, system integration testing, and factory acceptance testing.
   • Prepare backup of engineering software and configuration files (excluding core control source code)

   Phase Deliverables:Factory Test Report and Software Configuration Backup

5. 05

   Shipping and Delivery Acceptance

   1 to 3 weeks after passing factory testingResponsible Party:Manufacturer

   • Responsible for export packaging, shipping, and documentation.
   • Owner/Agent: Receipt Count & Visual Inspection
   • Sea/land freight lead times vary by project country.

   Phase Deliverables:Shipping Documents and Arrival Acceptance Records

6. 06

   On-site debugging and operations training

   Schedule upon arrival based on site conditionsResponsible Party:Manufacturer

   • Technicians arrived to perform power-on checks, parameter tuning, and load testing.
   • Conduct operations training for customer engineers
   • Delivery System Manual and Spare Parts List

   Phase Deliverables:Debug Report, Training Records, and System Manual

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The list isWolong WD5180 Series High-Performance Compact High-Voltage Variable Frequency DriveReal-world deployment records of high-voltage variable frequency drives on the same platform, including project name, country/region, commissioning date, unit capacity, quantity, and load type. Exportable to CSV for bid qualification documents and performance verification.