Máy biến áp cách ly 45 kVA, điện áp sơ cấp 480 V theo sơ đồ Delta – điện áp thứ cấp 480Y/277 V

45 kVA Transformer Amps

A 45 kVA transformer with a primary voltage of 480V and a secondary voltage of 208V typically provides 216.3 amps on the secondary side. On the primary side, for a 480V transformer, the current would be approximately 54.5 amps. It’s essential to size the wiring and circuit protection accordingly to ensure safe operation of the transformer. Properly sized wiring will help prevent overheating and ensure the transformer functions efficiently. Always follow the manufacturer’s recommendations and relevant electrical codes when selecting wire sizes and protection devices.

45 kVA Transformer 480 to 208

A 45 kVA transformer designed to step down from 480V to 208V is commonly used in commercial and industrial applications to convert high voltage to a lower voltage suitable for lighting, machinery, or HVAC systems. The 480V primary voltage ensures compatibility with industrial power systems, while the 208V secondary voltage is often used in lighting and small equipment. This type of transformer is frequently used in three-phase power distribution systems.

45 kVA Transformer Dimensions

The dimensions of a 45 kVA transformer depend on the type (dry-type or oil-immersed). Generally, for a dry-type transformer, the approximate dimensions are around 24 inches in height, 16 inches in width, and 20 inches in depth. Oil-immersed transformers may be larger due to the tank and insulation, with dimensions around 30 inches in height, 24 inches in width, and 30 inches in depth. Always consult the manufacturer’s specifications for precise dimensions based on your transformer model.

45 kVA Transformer Size

The size of a 45 kVA transformer is typically based on its kVA rating, which defines its power-handling capacity. In the case of a 45 kVA transformer, the physical size will vary depending on whether it’s a dry type or liquid filled (oil immersed) design. Dry type transformers tend to be more compact, while oil-filled transformers are bulkier due to the need for insulation and cooling fluid. The physical footprint of a 45 kVA transformer is often designed to fit in standard electrical enclosures or vaults.

45 kVA 3 Phase Transformer

A 45 kVA 3 phase transformer is a popular choice in commercial and industrial applications where three phase power is needed to run large equipment or machinery. This transformer steps down high voltage to a lower, more usable voltage. For example, a typical 480V to 208V 3 phase transformer provides a balance of voltage and current that is optimal for motors, HVAC systems, and other three phase loads. The 3 phase configuration ensures smoother and more efficient operation of heavy-duty electrical systems.

45 kVA Transformer Wire Size

The wire size for a 45 kVA transformer depends on the amperage and the voltage rating of the transformer. For a 480V to 208V transformer, the wire size for the primary side (480V) may typically be 6 AWG copper or 4 AWG aluminum, while the secondary side (208V) would generally require 4 AWG copper or 2 AWG aluminum wire, depending on the current capacity. Always refer to NEC (National Electrical Code) tables or consult an electrician to ensure proper wire size for safety and efficiency.

45 kVA Step Down Transformer

A 45 kVA step-down transformer is used to reduce the voltage from a higher value (e.g., 480V) to a lower voltage (e.g., 208V) suitable for specific equipment or electrical systems. These transformers are essential for providing power to equipment that operates at a lower voltage, such as industrial machines, lighting, and HVAC systems. Step-down transformers ensure voltage is reduced safely, making electrical systems more manageable and efficient.

45 kVA Isolation Transformer

A 45 kVA isolation transformer is used to provide electrical isolation between the primary and secondary windings. This type of transformer helps prevent noise or surges from entering sensitive equipment, offering protection and reducing interference. It is ideal for applications that require clean and stable power, such as in medical devices, laboratories, or communication equipment. Isolation transformers also enhance safety by separating circuits from ground potential and providing fault protection.

45 kVA Dry Type Transformer

A 45 kVA dry type transformer uses air as the cooling medium instead of oil, making it more environmentally friendly and safer in certain settings. These transformers are commonly used in commercial buildings, industrial settings, and other applications where space is at a premium, and fire safety is a concern. The absence of oil means there’s no risk of leaks or environmental contamination. However, dry type transformers are often bulkier compared to oil-immersed types for the same kVA rating.

45 kVA Transformer Installation

Installing a 45 kVA transformer requires proper planning, as the transformer must be securely placed in an appropriate location with sufficient clearance for air circulation and safety. The installation process typically includes setting the transformer on a stable, level surface, grounding the system, and connecting the primary and secondary wiring as per the manufacturer’s specifications. It’s important to follow all local codes and regulations and, if necessary, consult a licensed electrician to ensure proper installation.

45 kVA Transformer Weight

The weight of a 45 kVA transformer depends on whether it’s a dry-type or oil-immersed model. A dry type transformer typically weighs between 250 to 500 kg (550 to 1,100 lbs), depending on its design and the materials used in construction. Oil-immersed transformers are generally heavier due to the oil-filled tank and additional cooling components, with weights ranging from 500 to 800 kg (1,100 to 1,800 lbs). The weight of the transformer plays a role in determining the handling and installation requirements. Always ensure appropriate lifting equipment is used during installation.