What is the process for site surveys and quotation requests?

You can send electrical diagrams, equipment photos, or location details for an initial engineering assessment immediately via our Facebook Page or email contact@wintechservice.com. Our engineers will then schedule an actual site survey and issue a quotation within 1-3 working days.

Do you provide inspection reports certified by licensed electrical engineers?

Yes, completely. Every preventive maintenance (PM) project includes a comprehensive Engineering Test Report and safety certification signed by legally licensed professional electrical engineers.

How long is the power outage required for Annual Preventive Maintenance (PM)?

It depends on the factory size and equipment quantity, but typically requires a temporary power outage of 4-8 hours. For factories needing 24/7 operations, we can plan phased shutdowns or work during annual holidays and night shifts according to your requirements.

What support is available for electrical equipment failures or transformer emergencies?

The WIN TECH team has engineers and technicians ready to inspect, troubleshoot, and prepare backup transformers or replacement equipment to restore your factory's electrical system as quickly as possible.

Engineering Services

Comprehensive Electrical Engineering Services

Covering high voltage, low voltage, transformers, solar cells, and preventive maintenance (PM).

Service Category

High Voltage Electrical System

Design, installation, and commissioning of high voltage substation and distribution systems.

Service Scope:

Substation Design & Construction (11kV - 115kV)
High Voltage Switchgear Installation & Testing
Underground High Voltage Cable Laying & Splicing
Protection Relay Calibration & Co-ordination Study
High Voltage Inspection & Maintenance

Service Category

Low Voltage Electrical System

Complete low voltage main distribution board (MDB) design, cabling, and panel fabrication.

Service Scope:

Main Distribution Board (MDB) & Sub-Distribution Board Fabrication
Capacitor Bank & Power Factor Improvement
Cable Tray, Conduit, and Power Distribution Wiring
Automatic Transfer Switch (ATS) System
Grounding & Surge Protection System

Service Category

Transformer Service & Maintenance

Comprehensive oil-immersed & dry-type transformer repair, oil filtering, and diagnostics.

Service Scope:

Transformer Repair & Overhaul (up to 200 MVA)
Transformer Oil Filtering, Degassing & Oil Replacement
Dissolved Gas Analysis (DGA) & Insulation Resistance Test
Gasket Replacement & Leakage Repair
Dry-Type Transformer Inspection & Maintenance

Service Category

Preventive Maintenance (PM)

Annual preventive maintenance and thermo-scan inspection to ensure uninterrupted operation.

Service Scope:

Annual Electrical System Inspection & Testing
Infrared Thermography Scan (Thermo Scan) for Hotspots
Circuit Breaker Testing & Maintenance (ACB, MCCB)
Partial Discharge (PD) Measurement
Comprehensive Maintenance Report with Engineering Recommendations

Service Category

Solar Cell & Clean Energy Solutions

Turnkey Solar Rooftop & Floating Solar installation for industrial plants and commercial sites.

Service Scope:

Solar Rooftop & Solar Farm EPC Services
On-Grid & Hybrid Solar System Design
CT/PT Protection & Grid-Tie Inverter System
Performance Monitoring & Maintenance
Licensing & PEA/MEA Authority Approval Assistance

Service Category

EV Charger Installation

Commercial & industrial EV charging station setup, load management, and electrical infrastructure.

Service Scope:

AC & DC Fast Charger Installation
Power Load Management & Transformer Capacity Upgrades
EV Charging Station Electrical Distribution
Safety Protection & Earthing System for EV Charging
System Commissioning & Maintenance

Service Category

Industrial Electrical Solutions

Complete electrical contractor services for factories, power plants, and industrial estates.

Service Scope:

Underground Power Cable Installation
Fire Alarm & CCTV System Installation
Safety Life Line & Industrial Safety Equipment
Factory Power Expansion & Revamping
Emergency Power & Backup Generator Wiring

ENGINEERING TOOLKIT

Basic Electrical Engineering Calculator

Estimate Transformer and Capacitor Bank sizes for plant engineers and procurement teams (100% Client-side)

⚡ Calculate Transformer Size (kVA)

Actual Electrical Load (kW)

Current System Power Factor (PF)

Future Load Allowance (Safety Margin %)

Minimum Required Transformer Size (kVA):

705.9 kVA

Recommended Standard Transformer Size (kVA):

800 kVA

⚠️ Legal and Engineering Disclaimer: The results from this tool are preliminary theoretical estimations. For actual design, installation, and procurement in accordance with professional engineering laws, a site survey, electrical parameter calculations (e.g., Short Circuit Current, Harmonics, Cable Voltage Drop), and a certified engineering design by a licensed electrical engineer are required before proceeding.

FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions (FAQ)

Common questions regarding our services, workflows, and engineering certifications.

WIN TECH SYSTEM & ENGINEERING CO., LTD. provides electrical engineering contracting services nationwide, including Bangkok, metropolitan areas, Eastern Economic Corridor (EEC) industrial estates, and all other regions of Thailand.