Chint Automatic AC Voltage Regulator TND1-10/AF

   The Chint Automatic AC Voltage Regulator **TND1-10/AF** is a high-precision fully automatic voltage regulator designed specifically for single-phase power supplies, suitable for environments with significant voltage fluctuations in residential, office, and industrial scenarios. Below is its core information and application key points:

I. Core Parameters and Functions*CHNT NL1E - 63A circuit breaker*  

1. **Electrical Performance*Chint NXBLE-40C6 residual current circuit breaker (RCCB)*  

   - **Rated Capacity**: 10kVA, capable of stably driving high-power devices such as air conditioners, refrigerators, and computers.  

   - **Input Voltage Range**: 160-250VAC, adapting to areas with large grid voltage fluctuations.  

   - **Output Voltage**: 220VAC±4%, with high voltage stabilization accuracy to ensure stable device operation.  

   - **Cooling Method**: **AF (Fan Cooling)**, accelerating heat dissipation through a built-in fan, suitable for long-term high-load operation.  

   - **Protection Functions**: Overvoltage protection (cuts off output when the output voltage exceeds 242-250V) and overheating protection (cuts off input when the temperature is too high).  

2. **Design Features*Chint NXR series thermal overload relays price*  

   - **Intelligent Digital Display**: Real-time display of input/output voltage and operating status for easy monitoring.  

   - **Portable Mobility**: Vertical design with rotating wheels for convenient adjustment of installation position.  

   - **Anti-Interference Capability**: Uses vacuum impregnation insulation technology to reduce electromagnetic interference, suitable for power supply to precision equipment.  

II. Application Scenarios*CHINT circuit breaker price*  

- **Residential and Office**: Stabilizes voltage for home appliances such as air conditioners, refrigerators, computers, and printers to prevent device damage from voltage fluctuations.  

- **Industrial and Commercial**: Suitable for scenarios with high voltage stability requirements, such as small production lines, laboratories, and medical equipment.  

- **Voltage-Fluctuating Areas**: Particularly suitable for rural areas and old residential communities with unstable grid voltages.  

III. Documents Required for Construction and Acceptance*CHINT surge protector price*  

When installing this voltage regulator, the construction unit must provide the following documents to the developer or supervisor:  

1. **Product Qualification Documents**  

   - Factory certificate of compliance, test reports (including electrical performance, insulation strength, fire performance, etc.).  

   - Manufacturer’s business license and 3C certification (China Compulsory Certification).  

2. **Installation and Commissioning Documents**  

   - Installation instructions (including wiring diagrams, grounding requirements, ventilation spacing, etc.).  

   - Commissioning records (input/output voltage test data, protection function test results).  

3. **Safety and Compliance Documents**  

   - Electrician certificate (special operation certificate) of the installation personnel.  

   - Ground resistance test report (to ensure the grounding system meets safety standards).  

V. Installation and Usage Precautions**  

1. **Environmental Requirements**  

   - The installation environment must be well-ventilated, with at least 0.5 meters of heat dissipation space reserved around it to avoid enclosed or high-temperature environments.  

   - Avoid installing in humid, dusty, or corrosive gas environments.  

2. **Wiring Specifications**  

   - Use the standard cables to connect the input/output terminals, ensuring correct polarity and reliable grounding.  

   - The cross-sectional area of the input power cable must match the equipment’s rated current (10kVA corresponds to approximately 45.5A).  

3. **Load Management**  

   - When the input voltage is below 198V, derate according to the output capacity curve (e.g., when the input is 160V, the output capacity drops to approximately 60%).  

   - Avoid long-term full-load operation; it is recommended to reserve a 20% capacity margin.  

VI. After-Sales Service**  

- **Warranty Policy**: Chint provides a 1-year warranty. Quality issues can be repaired or replaced free of charge (purchase凭证 must be retained).  

VII. Comparison and Selection Suggestions**  

- **Difference from TND1-10**: TND1-10/AF adds fan cooling and mobile wheels, suitable for high-load or frequently mobile scenarios; the ordinary TND1-10 uses natural cooling with a slightly lower price.  

- **Selection Criteria**: Choose based on load power, voltage fluctuation range, and usage environment. Prioritize the AF model for high-load or high-temperature environments.  

Summary**  

With its high-precision voltage stabilization, multiple protections, and convenient design, the Chint TND1-10/AF voltage regulator is a reliable choice for unstable voltage scenarios. Construction units must strictly follow installation specifications and provide complete documents, while users can purchase through formal channels to ensure after-sales support.  

The Chint Automatic AC Voltage Regulator **TND1-10/AF**, with its **10kVA rated capacity**, **wide input voltage range (160-250VAC)**, and **fan cooling design**, effectively stabilizes voltage and protects equipment safety in various scenarios. Below are its core application scenarios and typical cases:  

I. Residential and Office Environments**  

1. Home Appliance Protection**  

- **Applicable Devices**: Voltage-sensitive appliances such as air conditioners, refrigerators, computers, and smart home devices.  

- **Scenario Value**:  

  - In old residential areas or rural areas with frequent voltage fluctuations (e.g., voltage may drop below 170V during summer peak power usage), the voltage regulator stabilizes output at 220V±4%, preventing air conditioner compressors from stopping due to undervoltage or reducing refrigerator cooling efficiency.  

  - Long-term operation of smart TVs, game consoles, and other devices in unstable voltage environments can easily cause motherboard damage; the voltage regulator extends device lifespan.  

2. Office Equipment Support**  

- **Applicable Devices**: Printers, projectors, office computers, servers, etc.  

- **Scenario Value**:  

  - Prevents data loss (e.g., computer hard disk read/write interruptions) or equipment failures (e.g., projector bulbs burned out by voltage surges) due to voltage fluctuations.  

  - Small offices can use one TND1-10/AF to stabilize power supply for multiple devices simultaneously, replacing multiple small voltage regulators and saving costs.  

II. Industrial and Commercial Sites**  

1. Small Production Lines and Processing Equipment**  

- **Applicable Devices**: CNC machine tools, laser cutting machines, packaging machinery, and other small-to-medium industrial equipment.  

- **Scenario Value**:  

  - Industrial power grids often experience voltage fluctuations due to the start/stop of large equipment (e.g., voltage drops when welding machines start), and the voltage regulator ensures equipment operation accuracy to avoid processing errors.  

  - The fan cooling (AF) design supports long-term high-load operation, suitable for factory three-shift production.  

2. Commercial Complexes and Stores**  

- **Applicable Devices**: Mall lighting systems, catering kitchen equipment (e.g., ovens, freezers), cash register systems, etc.  

- **Scenario Value**:  

  - During peak power usage in large malls, voltage may fluctuate below 190V; the voltage regulator ensures stable LED lighting without flickering and maintains constant temperatures in freezers, enhancing the customer experience.  

  - Stable power supply for cash register systems prevents transaction interruptions and ensures business continuity.  

III. Voltage-Fluctuation-Sensitive Areas**  

1. Rural and Remote Areas**  

- **Scenario Characteristics**: Weak power grid infrastructure, large voltage fluctuations (e.g., 160-250V), and even frequent power outages.  

- **Application Value**:  

  - Stabilizes power supply for irrigation equipment (e.g., water pumps) and agricultural processing machinery (e.g., grain dryers), preventing equipment damage or production interruptions due to unstable voltage.  

  - Home users can ensure normal operation of refrigerators, TVs, and other home appliances, improving quality of life.  

2. Old Residential Communities and Urban Villages**  

- **Scenario Characteristics**: Insufficient transformer capacity, voltage easily drops below 180V during high air conditioner loads in summer.  

- **Application Value**:  

  - Stabilizes power operation for high-power appliances such as air conditioners and water heaters, avoiding frequent tripping or equipment damage.  

  - Supports charging piles to solve charging problems for electric vehicle users due to unstable voltage.  

IV. Precision Equipment and Special Industries**  

1. Laboratories and Research Institutions**  

- **Applicable Devices**: Analytical instruments (e.g., centrifuges, microscopes), testing equipment, laboratory bench power supplies.  

- **Scenario Value**:  

  - Stable output voltage (220V±4%) avoids experimental data deviations caused by voltage fluctuations.  

  - Anti-interference design (vacuum impregnation insulation technology) reduces electromagnetic interference, suitable for precision instruments requiring high power purity.  

2. Medical Facilities**  

- **Applicable Devices**: Medical equipment such as CT machines, X-ray machines, ventilators, and monitors.  

- **Scenario Value**:  

  - Ensures stable equipment operation, preventing inaccurate diagnostic results or equipment failures due to voltage fluctuations.  

  - The fan cooling design meets the 24-hour continuous operation needs of hospitals, ensuring reliable heat dissipation.  

V. Mobile and Temporary Scenarios**  

1. Exhibitions and Event Sites**  

- **Scenario Characteristics**: Complex temporary power supply environments with high voltage fluctuation risks (e.g., unstable generator power).  

- **Application Value**:  

  - Stabilizes power supply for LED displays, audio systems, projectors, etc., preventing performance or exhibition interruptions.  

  - The mobile wheel design facilitates rapid deployment and position adjustment, suitable for frequently mobile exhibition setups.  

2. Construction Sites and Temporary Offices**  

- **Applicable Devices**: Welding machines, cutting machines, temporary lighting systems, office computers.  

- **Scenario Value**:  

  - Stabilizes power supply for construction equipment, reducing welding quality issues or equipment damage due to unstable voltage.  

  - Ensures normal operation of network equipment and printers in temporary offices, improving project management efficiency.  

VI. Special Industries and Customized Needs**  

1. Imported Equipment Adaptation**  

- **Scenario Characteristics**: Some imported equipment (e.g., those manufactured in Japan or the U.S.) have a rated voltage of 100-120V and require a transformer.  

- **Application Value**:  

  - TND1-10/AF can first stabilize the input voltage (160-250VAC), then convert it to the voltage required by the equipment through a transformer, doubly protecting equipment safety.  

  - Avoids equipment damage caused by grid fluctuations superimposed with transformer conversion errors.  

2. Emergency Backup Power Systems**  

- **Scenario Characteristics**: Used with generators to address voltage fluctuations after power outages.  

- **Application Value**:  

  - When the generator starts, the voltage may overshoot above 250V; the voltage regulator limits the output to 220V±4% to protect critical equipment (e.g., servers, monitoring systems).  

  - The fan cooling design adapts to the heat generation from long-term generator operation.  

Selection Considerations**  

1. **Load Matching**:  

   - Select a capacity 1.2-1.5 times the total equipment power to avoid long-term full-load operation (e.g., an 8kW maximum load is recommended for a 10kVA voltage regulator).  

   - Inductive loads (e.g., air conditioners, motors) have large starting currents and require a 30% capacity reserve.  

2. **Environmental Requirements**:  

   - The installation location must be well-ventilated (with 0.5 meters of space reserved around it) and avoid dusty or corrosive gas environments.  

   - When the altitude exceeds 1000 meters, derate the capacity (reduce capacity by 1% for every 100 meters increase).  

3. **Alternative Solutions Comparison**:  

   - For higher precision (within ±1%) or anti-interference capabilities, choose Chint’s NPS series precision净化 voltage regulators.  

   - Three-phase equipment is recommended to use the TNS1 series three-phase voltage regulator to avoid unbalance caused by single-phase power supply.  

Summary**  

The Chint TND1-10/AF voltage regulator performs excellently in residential, industrial, medical, and laboratory scenarios, thanks to its **wide voltage adaptation**, **fan cooling design**, and **multiple protection functions**. Its portability and cost-effectiveness make it particularly suitable for areas with frequent voltage fluctuations and temporary power needs. Construction units must strictly follow wiring specifications and provide complete qualification documents during installation, while users can purchase through Chint’s official website or authorized channels to ensure genuine products and after-sales support.