ENGINEERING CASES

Case Studies

Project records showing practical equipment issues, field implementation and verified service outcomes.

Content note

Case information and images are published from materials provided and approved by the company. Customer information is anonymised where required.

Uzbekistan EV Charger Retrofit Project project image
Charger retrofit case01

Uzbekistan EV Charger Retrofit Project

Xinyan Technology completed its first overseas charging-equipment retrofit service in Uzbekistan, adapting the work to local equipment and site conditions.

  • First overseas retrofit engagement
  • On-site charging-equipment work
  • Implementation based on local conditions
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Qingyuan Multi-Station Platform Retrofit project image
Charger retrofit case02

Qingyuan Multi-Station Platform Retrofit

Thirteen 360 kW group-charging hosts across four stations were retained and connected to a unified operating platform.

  • Four stations coordinated
  • 13 group-charging hosts retained
  • Phased completion in 10 days
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Sanhe Dual-Platform Charger Retrofit project image
Charger retrofit case04

Sanhe Dual-Platform Charger Retrofit

Seventy-eight 120 kW DC chargers were adapted for both an operating platform and the national regulatory platform.

  • 78 × 120 kW DC chargers
  • Operations and regulatory integration
  • 15-day phased implementation
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Inner Mongolia Dual-Voltage Charger Retrofit project image
Charger retrofit case05

Inner Mongolia Dual-Voltage Charger Retrofit

Fifteen 120 kW dual-connector chargers were integrated into a new platform while retaining their original 12/24 switching capability.

  • 15 dual-connector chargers
  • 12/24 switching retained
  • Six-day field implementation
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Tongling Bus Platform and Controller Upgrade project image
Charger retrofit case07

Tongling Bus Platform and Controller Upgrade

Bus charging equipment was integrated into a unified platform while higher-failure legacy controller boards were replaced and retested.

  • Platform integration and controller upgrade
  • Existing charger assets retained
  • Phased completion in 20 days
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Chizhou Bus Charger Contactor Repair project image
Charger repair case11

Chizhou Bus Charger Contactor Repair

An intermittent AC contactor engagement fault was inspected on site and the faulty contactor was replaced.

  • On-site fault reproduction
  • AC contactor testing
  • Faulty-part replacement
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Xindi Plaza Charging Station Repair project image
Charger repair case14

Xindi Plaza Charging Station Repair

Multiple faults involving DC contactors, charging cables and power modules were inspected and treated at the station.

  • DC contactor replacement
  • Cable fault isolation and replacement
  • Faulty modules removed for repair
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Sinopec Century Station Charger Repair project image
Charger repair case15

Sinopec Century Station Charger Repair

Cooling fans, faulty power modules and related components were inspected, repaired or replaced.

  • Cooling-fan repair and replacement
  • Power-module fault treatment
  • Alarm-led component inspection
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2025–2026 Wuhu Charging & Swap Station O&M Project project image
O&M and inspection case16

2025–2026 Wuhu Charging & Swap Station O&M Project

Annual O&M and inspection services cover charging equipment, distribution systems, site conditions, auxiliary facilities, faults and customer events.

  • More than 300 charging stations
  • Equipment and distribution inspection
  • Fault and emergency response
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