Custom
4 kVA Isolation Transformer, 3 Phase, 480V to 400V
- Stock: In Stock
- Model: PEACO-SG-4KVA
- SKU: PEACO-SG-4KVA
$1,290.68
Ex Tax: $1,290.68
The 4 kVA isolation transformer is a small isolation transformer, that converts three phases 480 Volt to 400 Volt, 400 Volt to 230 Volt, and other input/output voltage can be customized. The electrical isolation transformer adopts an advanced winding machine and vacuum pressure dipping equipment. Dry-type isolation transformer with high efficiency, low heat loss, and low cost.
Technical Parameters
- Model: PEACO-SG-4KVA
- Capacity*: 4 kVA (Customized)
- Frequency : 50Hz/60Hz
- Primary voltage (VAC)* : 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 440V/ 415V/ 460V/ 480V/690V...(Customized)
- Secondary voltage (VAC)* : 120V/ 190V/ 208V/ 220V/ 230V/ 240V/ 380V/ 400V/ 440V/ 415V/ 460V/ 480V/690V...(Customized)
- Withstand voltage test: 100% tested. Primary to secondary 2.5kV AC/min; Primary to safety ground 2.5kV AC/min; Secondary to safety ground 2.5kV AC/min. (does not have both puncture and break-down)
- Insulation resistance : >100MΩ / DC500V
- Insulation class: F/H
- Overload capability: 300% for 10 seconds, 150% for 120 seconds
- Efficiency : ≥98%
- Short circuit impedance: 4%
- Total Harmonic Distortion: ≤1%
- Power factor: 0.8
- Primary to secondary winding isolation voltage: 1000V~3000V
- Connection mode: standard Dyn11 and customized Ynyn0, Yd11, Dd0. Dyn5. Dzn0, etc, as per customer requirements.
- Temperature rise limit: 100K (actual temperature minus ambient temperature)
- Enclosure protection grade: standard IP22 indoor ( contact us for customized electrostatic shield or IP54, IP65 outdoor).
- Cooling mode: Natural cooling/fan system cooling
- Display*: Analogue display, digital display.
Transformer Material
- Material: Transformer coil adopts 200-degree high-temperature copper or aluminum wire.
- Winding material*: 100% copper or aluminum (Optional)
Working Environment
- Noise: ≤45dB (within 1m)
- Environment temperature : -20℃~+50℃, indoor enclosure, floor-mounted
Quality Assurance
- Standard : IEC60076-1, VDE0550, IEC439, JB5555, GB5226, etc.
- Certification: CE, RoHS, and ISO:9001
- Design Life: 30 years
- Warranty: 1 year
Note: * denotes optional and customized parameters; you can select every parameter in drop-down lists to complete your order. Please tell us your needed connection type.
Features and Benefits
The small isolation transformer is a 1 to 1 isolation transformer. Peaco Support provides a custom isolation transformer with special input and output voltages. For example, 240V to 240V isolation transformers, 440V to 230V step-down transformers, 380V to 460V step-up transformers, etc can be also customized. The three-phase isolation transformers in Peaco Support have the following features and benefits:
- Silicon Steel Sheet: New cold-rolled silicon steel sheet, 0.27mm, 0.30mm, 0.35mm of thickness, excellent performance.
- Terminal Block: High-quality terminal block, excellent temperature resistance, pressure resistance, and flame retardancy for small power. For high power, made of quality copper material, with good electrical conductivity, and high temperature resistance, not easy to burn out the equipment when a short circuit happens.
- Enameled Wires: H class enameled copper/aluminum wires, temperature resistance 200℃, winded tightly and uniformly, no insulating layer, high heat dissipation, service life ≥35 years.
- Bobbin: The 3-phase isolation transformer is made of nylon, with high-temperature resistance, and great flame retardancy. The high-power transformer with a frameless design has ventilation slots between the coils for smooth air flows which reduces the temperature of the coils.
- Insulation Process: The whole transformer adopts H-class vacuum-impregnated insulation, temperature resistance of 200°C, lower noise, better insulation, and anti-rust and anti-corrosion.
Isolation Transformer Dimension (Unit: mm)
| Types | Dimension | Weight | |||
| Open Type (A*B*C) | Mounting Size (D*E) | Enclosed Type (A*B*C) | Open Type | Enclosed Type | |
| Aluminium Wire Transformer | 300*155*310mm | 180*125mm | 300*440*500mm | 40kg | 52kg |
| Copper Wire Transformer | 300*155*310mm | 180*125mm | 300*440*500mm | 40kg | 52kg |
Isolation Transformer Schematic Diagram
KNOWLEDGE BASE --- Isolation Transformer Functions
Isolation transformer works as general circuit control power, safety lighting, and indicator lights in the electronic industry or industrial and mining enterprises, machine tools, and mechanical equipment.
- The main function of an isolation transformer is to completely insulate the electricity on the primary side and secondary side and also to isolate the circuit.
- In addition, the high-frequency loss of its iron core is used to prevent high-frequency clutter from entering the control loop.
- Isolation transformer makes the secondary suspend to the ground only on occasions with a small power supply range and short lines. At this time, the capacitance current of the system to the ground is too small to cause personal injury.
- The last function is that the isolation transformer protects personal safety and isolates dangerous voltages.
In general, an isolation transformer provides galvanic isolation and is used to protect against electric shock, suppress electrical noise in sensitive devices, and transfer power between two circuits that must not be connected.
