The warranty period depends on customer requirements. We provide 24/7 online support with instant response. If the issue cannot be resolved through remote guidance or video assistance, our service team will promptly arrange an on-site visit.

We continue to provide online video guidance and technical advice to assist with inspection, installation, and maintenance even after the warranty expires.

Our warranty service includes video or online maintenance guidance, repairs, and component replacement. In case of a confirmed quality issue, we will supply replacement parts immediately or together with the next shipment. If the issue cannot be resolved remotely, technicians will be dispatched for on-site support.

We offer free online training and technical support via video or live sessions. For clients requiring on-site training, sessions can be arranged at our production base for a limited period at an additional cost.

Our standard payment term is 50% deposit and 50% balance before shipment. Payment is made by bank transfer (T/T) to our designated account.

The voltage stabilizers support input voltage ranges such as 140V–270V with an output voltage stability of ±1%. If the input fluctuation exceeds this range, we can recommend a wider-range model suitable for your load.

The rated capacity of the stabilizer should be 1.2 to 1.5 times higher than the total load power.

Under rated voltage, the regulation accuracy can reach 1–5%, with factory settings typically at ±3%.

The response time is ≤100 ms, and the unit can handle overloads of 120–150% of the rated capacity.

We manufacture a wide range of voltage stabilizers, customized according to different load types and operating conditions.

Factors such as dust, temperature, and humidity can affect performance, so environmental conditions should be considered during model selection.

The stabilizers are equipped with over-voltage, under-voltage, over-current, phase sequence, phase loss, over-temperature, mechanical, short-circuit, and delay protection functions.

Our voltage regulators are available in multiple configurations, such as input voltage ranges up to 0–650 V and output voltage stability within ±1%. For applications requiring a wider input range, extended-range models are available.

The efficiency of our voltage regulators is ≥96%, featuring comprehensive protection functions including over-voltage, over-current, short-circuit, over-temperature, phase-sequence, zero-position, upper and lower limit, and interlock start protection.

The selected voltage regulator should include a safety margin of 10–20% above the calculated total load power to ensure stable operation.

Dust, high temperature, and high humidity can affect performance. These environmental factors should be considered when selecting the appropriate model.

Our variable frequency power supplies use IGBT/SPWM sine-wave pulse width modulation technology, supporting adjustable voltage and frequency ranges such as 0–520 V (three-phase) and 5–1000 Hz, with adjustment accuracy of ±1%.

Depending on the rated power, the overload capacity can reach 120% for 1 hour, 150% for 1 minute, and 200% for 20 seconds.

For linear loads, the total harmonic distortion (THD) is less than 2%.

We offer customized solutions based on actual site load conditions and application requirements.

Harmonic content and order vary depending on the type of load. Professional technicians are available to conduct on-site measurements using specialized instruments to determine precise values.

APF can reduce total harmonic current distortion (THDi) to below 5%, ensuring compliance with power quality standards.

Harmonic mitigation helps reduce electricity costs caused by harmonic penalties and extends equipment service life by minimizing electrical stress and heat.

APF units include over-voltage, under-voltage, over-current, over-temperature, short-circuit, and frequency anomaly protection, along with built-in anti-resonance protection modules for enhanced system safety.

Power factor improvement is achievable, subject to site conditions and load characteristics.

Reactive demand varies by load type. We arrange professional on-site measurements with dedicated instruments and can also estimate based on transformer capacity and calculated parameters.

Harmonic levels, orders, and reactive demand differ by site. An integrated APF + SVG solution enables synchronous harmonic suppression and reactive compensation, often providing better overall power quality control.

Selection depends on measured site data such as harmonic spectrum, harmonic magnitude, and reactive power gap. We recommend HSVG / TBB / TAL solutions based on on-site measurements or analysis of provided parameters.

Power quality improves within the control scope (including power factor). Operation becomes safer and more reliable for the covered circuits and loads.

In addition to reverse connection and short-circuit protection, our DC/DC converters are equipped with multiple safeguards on both the high-voltage and low-voltage sides, including over-voltage, under-voltage, reverse polarity, over-current, short-circuit, and over-temperature protection.

Under rated power, both voltage and current regulation accuracy are within ≤1%, ensuring stable and precise output performance.

Air-cooled models are available with IP21 and IP54 protection, while water-cooled models are rated IP65.

Derating operation is required when ambient temperature or altitude exceeds the specified limits, to ensure reliability and safety under extreme conditions.

The PCS units are not only equipped with islanding protection, they also include comprehensive safeguards.

• AC side: over-voltage, under-voltage, over-current, and over-temperature protection.
• DC side: over-voltage, over-current, and short-circuit protection.

PCS systems are compatible with CAN 2.0, RS485, and Modbus RTU communication protocols, ensuring seamless integration with monitoring and control platforms.

Overload capacity varies depending on operating conditions:

• ≤105%: continuous operation
• 105–110%: operation ≥10 minutes
• ≥110%: automatic shutdown