UniWave Electric
UniWave Electric
Explore our leading industrial-grade monitoring relays engineered to operate flawlessly under the unique power-grid conditions of Vietnam's dynamic economic zones.
As Vietnam's premier economic locomotive, Ho Chi Minh City (HCMC) has transitioned from traditional light manufacturing into a high-technology industrial center. Zones like the Saigon Hi-Tech Park (SHTP), Tan Thuan Export Processing Zone (EPZ), and Hiep Phuoc Industrial Park host major multinational assembly plants, advanced semiconductor manufacturers, and state-of-the-art data infrastructure. However, this dense concentration of complex electrical machinery demands absolute power grid stability.
The tropical climate of Southern Vietnam, marked by heavy rainfall, monsoons, and extreme lightning activity, places a significant burden on the regional distribution networks managed by EVN HCMC. The grid frequently encounters voltage fluctuations, phase asymmetry, and phase loss. For three-phase motors—which drive ventilation, cooling compressors, water treatment systems, and automated assembly belts in HCMC—the loss of even a single phase can result in rapid thermal buildup, motor coil failure, and catastrophic system downtime.
“In automated manufacturing lines, a phase failure lasting for even 300 milliseconds without a reliable trip signal can cause permanent damage to heavy-duty induction motors. Our phase failure relays provide precision protective actions to shield your systems against voltage irregularities.”
A comprehensive overview of how digital and analogue monitoring relays mitigate systemic risks in 3-phase networks.
Three-phase systems rely on balance. When a phase is lost (single-phasing) due to a blown fuse, physical line disruption, or transformer fault, the motor will attempt to draw the remaining current from the other two phases. This spikes the winding temperature by over 200%, destroying standard motor insulation in minutes.
Similarly, Phase Asymmetry (voltage unbalance) causes negative sequence voltage components to circulate, creating opposing mechanical torque that triggers severe motor vibration, mechanical wear, and energy waste. A high-quality phase sequence relay constantly monitors these factors to instantly trip the contactor control circuit when parameters slip beyond acceptable thresholds.
How specialized engineering applications keep HCMC’s critical infrastructure running without interruption.
As HCMC's skyline grows taller, elevators must run continuously. Integrated phase protection relays prevent wrong rotation sequences, stopping elevators from operating if the power grid phase sequence changes, guaranteeing passenger safety.
Southern Vietnam is a leading exporter of agriculture and seafood. Unstable refrigeration compressors can lead to massive stock spoiling. Digital phase monitors prevent compressor burnouts from phase losses or voltage drops.
Industrial automation equipment in parks like Tan Thuan need precise, low-latency protection. Our relays monitor voltage spikes and current imbalances to protect automation equipment from grid instability.
Wenzhou UniWave Electric Co., Ltd. is a leading manufacturer specializing in a wide range of electrical products, including Circuit Breakers (RCBO / RCCB / MCB / WiFi Smart MCB / MCCB / ACB), Isolator Switches, Change Over Switches, AC Contactors, Thermal Relays, Magnetic Starters, Solid State Relays, Distribution Boxes, Voltage Stabilizers, and Voltage Protectors. Our company is located in Liushi, Yueqing, Wenzhou, China, famously known as the “City of Low Voltage Electrical Appliances,” offering both a thriving industrial environment and a beautiful natural setting.
With over 25 years of experience in the circuit breaker and AC contactor industry, Wenzhou UniWave Electric has established a strong reputation for quality, reliability, and innovation. Our products strictly comply with IEC standards and have obtained internationally recognized certifications, including SAA, CE, CB (IEC), and ISO9001.
Our production facilities leverage Industry 4.0 standards, utilizing automated assembly lines, advanced winding machines, and high-precision testing processes to guarantee absolute reliability. Operating out of Wenzhou allows us to secure raw materials at optimized costs and utilize direct shipping networks from Wenzhou, Ningbo, and Shanghai ports straight to Cat Lai Port in Ho Chi Minh City. This short logistic distance (usually 5 to 7 days transit time) provides Vietnamese buyers with exceptional supply chain flexibility, low inventory overhead, and rapid responses to sudden market demands.
We are equipped with advanced testing instruments and a highly skilled R&D team, allowing us to continually develop new products and improve existing ones. We are committed to providing cutting-edge solutions that meet the evolving needs of our customers. Our products are widely exported and highly appreciated in various markets around the world, including Europe, America, Southeast Asia, the Middle East, and Africa.
Review our complete series of certified phase control, sequence protection, and current monitoring relays.
Understanding critical engineering expectations and import compliance steps for Vietnam industrial projects.
Procurement departments in Ho Chi Minh City’s foreign-invested enterprises (FIEs) require strict compliance documentation to prevent operational liabilities. Our phase protection devices are certified under global standards including CE, CB, SAA, and ISO9001.
This ensures our products meet international safety and insulation specifications. These standardizations guarantee compatibility with TCVN (Vietnam Standards) for low-voltage switchgear installations, making customs approvals and site handovers stress-free.
1. Request Quote & Customization: Specify line voltage limits, terminal requirements, and branding details.
2. Documentation Provision: UniWave provides commercial invoices, packing lists, CE/CB certificates, and certificates of origin (CO) to help you secure preferential tariffs.
3. Shipping & Logistics: Fast ocean transit from Chinese ports directly to HCMC’s Cat Lai port, ensuring your projects remain on track.
Expert insights on selecting, installing, and maintaining phase failure and sequence relays.
Consult with UniWave's engineering team to find the ideal phase failure relay configuration for your projects in Ho Chi Minh City.
