Difference between single and three phase transformer—voltage/current conversion, safe isolation, and voltage regulation—making them critical for power distribution in diverse fields. However, as a leading transformer manufacturer, CHH Power designs these two product lines to address distinct application needs, with key differences in input/output power types and deployment scenarios. Below is a detailed comparison of CHH Power’s three-phase and single-phase transformers, highlighting their unique features and optimal use cases.
1. Core Difference 1: Input & Output Power Types
The most fundamental distinction lies in the power supply they handle, which dictates their design and wiring configurations—an area where CHH Power optimizes performance for each type.
(1) Single-Phase Transformers (CHH Power Product Line)
CHH Power’s single-phase transformers operate on the principle of electromagnetic induction, with three core components: primary coil, secondary coil, and magnetic core. Their power handling is tailored for single-phase systems:
- Input/Output: Both input and output are single-phase alternating current (AC). For example, CHH Power’s 10kV/0.4kV 50kVA single-phase transformer takes 10kV single-phase grid power and converts it to 0.4kV single-phase power.
- Load Matching: Designed exclusively to supply single-phase loads, such as residential households, small commercial outlets (e.g., convenience stores), or low-power single-phase equipment (e.g., household appliances, small pumps).
- Simplified Wiring: No need for three-phase symmetry, so wiring is simpler—ideal for scenarios where three-phase power is unavailable (e.g., remote rural areas).
(2) Three-Phase Transformers (CHH Power Product Line)
CHH Power’s three-phase transformers are engineered for three-phase power systems, with more flexible power supply capabilities:
- Input/Output: Both input and output are three-phase symmetrical AC. For instance, CHH Power’s SCB11-200kVA/10kV three-phase cast resin transformer accepts 10kV three-phase grid power and outputs 0.4kV three-phase power.
- Dual Power Supply Ability: Beyond three-phase power for industrial loads, it can also supply single-phase power by tapping into one phase and the neutral line—suitable for mixed-load scenarios (e.g., factories with both three-phase motors and single-phase control circuits).
- High-End Winding Design: CHH Power’s premium three-phase transformers (e.g., 35kV 级 and above) use three independent windings (one per phase). These windings support flexible connection configurations (e.g., Dyn11, Yyn0) to match different grid standards, enabling compatibility with global power systems (e.g., 50Hz/60Hz, 11kV/22kV grids).
2. Core Difference 2: Application Fields
CHH Power’s product design aligns with the unique deployment needs of each transformer type, ensuring optimal performance in their target scenarios.
(1) Single-Phase Transformers: Low-Load-Density Low-Voltage Grids
CHH Power’s single-phase transformers excel in scenarios with small load density and simple power demands, thanks to their compact design and cost-effectiveness:
- Key Advantages: Simple structure, small size (e.g., CHH Power’s 50kVA single-phase transformer has a footprint of ~0.8m×1.2m), light weight, and lower manufacturing costs.
- Typical Applications:
- Rural low-voltage distribution networks (e.g., power supply for scattered rural households).
- Small commercial facilities (e.g., street shops, small offices) with low total load (usually ≤100kVA).
- Standalone single-phase equipment (e.g., agricultural irrigation pumps, residential solar inverter matching).
(2) Three-Phase Transformers: High-Load & Complex Environments
CHH Power’s three-phase transformers are built for high-load, multi-load, and harsh conditions, leveraging their robust design and anti-interference capabilities:
- Key Advantages: Higher load capacity (CHH Power’s three-phase transformers range from 100kVA to 20MVA), ability to handle three-phase balanced loads (e.g., industrial motors), and strong resistance to grid interference.
- Typical Applications:
- Industrial sectors: Printing & packaging, petrochemicals, and industrial automation (e.g., powering 380V three-phase motors, CNC machines).
- Large commercial & public facilities: Shopping malls, schools, hospitals, and high-rise elevators (supporting mixed three-phase/single-phase loads).
- Critical infrastructure: Post & telecommunications bases, data centers, and renewable energy plants (e.g., 10MW+ solar farms matching 35kV three-phase grid connection).
- Anti-Interference Edge: CHH Power’s high-quality three-phase transformers (e.g., SCB13 series) integrate electromagnetic shielding and neutral line optimization. This reduces grid common-mode interference and filters high-frequency pulse noise—critical for sensitive equipment like data center servers or industrial control systems.
3. CHH Power’s Customized Solutions: Matching the Right Transformer to Your Needs
While three-phase and single-phase transformers serve different purposes, CHH Power ensures both lines meet strict quality standards (IEC, GB) and offer customization:
- Single-Phase Customization: Adjust voltage ratios (e.g., 220V/110V for export markets) and enclosure IP ratings (IP20 for indoor, IP23 for semi-outdoor) for small-scale users.
- Three-Phase Customization: Tailor winding connections, cooling methods (air-cooled/forced air-cooled), and anti-corrosion designs (stainless steel enclosures for coastal areas) for industrial and large commercial clients.
To maximize performance, CHH Power also provides on-site load assessment services—helping clients select between single-phase (for low, single loads) and three-phase (for high, mixed loads) transformers, and ensuring compliance with local grid requirements.
Whether you need a compact single-phase transformer for rural power supply or a high-capacity three-phase unit for industrial use, CHH Power’s product line delivers reliable, efficient solutions tailored to your scenario.
OUR CERTIFICATE
OUR PROJECTS
