At YIY, quality is our foundation. Through rigorous quality control and advanced laboratories staffed by certified engineers, we validate performance, safety, and durability for every voltage stabilizer. Our zero-defect philosophy—from components to final product—ensures reliability that exceeds international standards and customer expectations.
ISO 9001:2015 Quality Management System
Comprehensive quality framework ensuring systematic control over design, manufacturing, testing, and delivery. YIY approach emphasizes customer satisfaction, continuous improvement, and data-driven decision making.
Incoming Quality Control (IQC)
Only quality components that meet stringent specifications will be produced to establish quality excellence.
100% Inspection
Every piece inspected for critical electrical and mechanical parameters
Testing Requirements
Full electrical testing including performance and safety parameters
Tensile Testing
Mechanical strength testing for critical structural components
Supplier Audits
Regular on-site audits of supplier facilities and quality systems
In-Process Quality Control (IPQC)
Continuous monitoring and verification throughout manufacturing processes ensuring consistent quality output and immediate deviation detection.
PCB Assembly
SMT process validation
Transformer Manufacturing
Winding and assembly control
Mechanical Assembly
Torque and fit verification
Documentation
Complete traceability records
Training
Operator certification programs
Final Quality Control (FQC)
Every voltage stabilizer undergoes comprehensive product validation for electrical performance, safety compliance, and environmental durability.
Servo Stabilizer Testing
- Servo motor performance – Speed, torque, positioning accuracy
- Carbon brush contact – Resistance and wear testing
- Mechanical endurance – Extended cycling reliability
- Noise level testing – Acoustic measurement under all conditions
IGBT Stabilizer Testing
- Switching performance – Speed and efficiency validation
- Harmonic analysis – THD measurement and compliance
- EMI/EMC testing – Electromagnetic compatibility verification
- Thermal performance – Heat dissipation and cycling tests
Three-Phase Testing
- Phase balance – Output balance under unbalanced loads
- Phase sequence – Correct sequence and protection verification
- Neutral current – Measurement under various load conditions
- Phase loss protection – Detection and protection function tests
Voltage Stabilizer Testing Laboratory Equipment
YIY’s quality control laboratories feature industry-leading test equipment and measurement systems, providing accurate, reliable, and traceable testing results for all voltage stabilizer products.
Continuous Improvement Programs
YIY’s continuous improvement culture drives systematic enhancement of quality systems, processes, and performance through structured programs that engage all employees in quality improvement activities.