Trafo
1. Level 2 energy efficiency provides better energy saving, low power loss and greater energy savings in long-term operation.
2. Epoxy resin casting, safe and fireproof, oil-free and environmentally friendly, with reliable performance.
3. Excellent short-circuit resistance, moisture and dust resistance, adaptability to various operating conditions.
4. Low noise, maintenance-free and long service life.
5. Widely applicable, it is the preferred model for upgrading power distribution systems.
SCB series dry type transformer, manufactured by epoxy resin casting method.
1. Introduction to the product
Three-phasedry transformerThe SCB series epoxy-coated switchgear is high-performance switchgear designed in accordance with the latest national energy efficiency standards. As the flagship model, meeting Energy Efficiency Level 2, it is positioned as energy-saving, efficient, safe, reliable, intelligent, and user-friendly. It is widely used in distribution network modernization, the integration of new energy sources, the power supply of heavy-duty industrial facilities, and the distribution of electricity in high-tech residential buildings.
It utilizes a solid copper foil winding and vacuum epoxy casting, completely replacing the insulating oil used in traditional oil-immersed transformers with a high-strength epoxy composite material. It is oil-free, environmentally friendly, flame-retardant, moisture-proof, and dust-proof. Its modular design and high standardization allow for fast delivery and customization for operation in high altitude, low temperature, high humidity, salt fog, and other harsh weather conditions.
It has become the product of choice for modernizing urban and rural power grids, replacing equipment, and supporting new energy sources. It has been applied in thousands of projects, including photovoltaic power plants, industrial parks, and large civil buildings, and is widely recognized for its stable operation and excellent energy-saving characteristics.
2. Technical parameters (customizable)
2.1 Basic electrical parameters
Element |
Specification |
Notes |
Model |
SKB |
|
Phase |
Three-phase |
|
Nominal lifting capacity |
10 kVA-5000 kVA |
Full standard range, possibility of individual customization of non-standard parameters. |
Rated voltage |
High voltage: 10 kV (±2×2.5%); low voltage: 0.4 kV |
Suitable for protection against voltage fluctuations in the network. |
Connection group |
Dean11 |
Standard for distribution transformers, suppresses third harmonics. |
Regulation of taps |
Disconnection from the circuit (standard); under load (optional ±8×1.25%) |
Off-state: reliable; under load: voltage regulation without power off. |
Insulation class |
Class F(155℃), Class H(180℃) (optional) |
Sufficient reserve for temperature increase, high overload capacity. |
Cooling mode |
AN/AF, FAF optional |
120% for 2 hours, 150% for 30 minutes with AF |
3. Main characteristics
3.1 High energy efficiency and low operating costs
A 1000 kVA installation can save over 12,000 kWh per year.
Complies with the national energy conservation policy and supports subsidies for green construction.
Intelligent temperature control optimizes cooling and reduces unnecessary energy consumption.
3.2 High level of security and multi-layered protection
Vacuum epoxy casting, fire retardant material UL94 V-0, self-extinguishing, non-toxic.
Oil-free design eliminates the risk of fire, explosion and leaks.
Solid copper foil windings can withstand short-circuit currents 25 times higher than the rated current.
Extremely low partial discharge levels slow down insulation aging.
PT100 temperature monitoring system with alarm, shutdown and automatic fan control functions.
3.3 High adaptability to the environment
Fully sealed windings have moisture-, dust-, dirt-repellent and anti-corrosion properties.
Resistant to coastal salt fog, high humidity, dust and chemical exposure.
Wide temperature range and adjustable for operation in plateau and low temperature conditions.
Silent version with noise level ≤45 dB for hospitals, laboratories and offices.
3.4 Intelligent and maintenance-free
The oil-free design requires no oil changes, no oil level checks and is virtually maintenance-free.
Compact, lightweight, easy to connect, supports indoor/outdoor installation, as well as installation in a junction box.
3.5 High cost, performance and customization options
Well-established mass production ensures a competitive price.
Configurable parameters: power, voltage, protection, cooling, noise, corrosion, plateau.
4. Applications
4.1 Civil and commercial buildings
Luxury residential buildings, villas, shopping centers, hotels, offices, hospitals, schools, nursing homes.
4.2 Industrial production
Electronics, food industry, textile industry, mechanical engineering, mining industry, cement industry, chemical plants, industrial parks.
4.3 New energy sources and modernization of power grids
Projects for modernization of power grids, photovoltaic and wind power installations, auxiliary systems of power plants.
4.4 Public and transport infrastructure
Metro, high-speed railways, airports, train stations, stadiums, libraries, city lighting, wastewater treatment plants.
4.5 Custom-designed special applications
Plateau-like regions (plateau types)
Cold regions (low-temperature type)
Laboratories, precision machining workshops (silent models ≤45 dB)
Coastal and chemical zones (anti-corrosion type)
