The Residential Transformer is essential for safely delivering electricity to homes and businesses. They convert high-voltage power from the grid into usable low-voltage electricity. Understanding transformer types, costs, and installation requirements is crucial for making informed decisions in residential and industrial applications.
Figure 1-1 residential transformer diagram
The Basics About Residential green box Transformer
Figure 1-2 green box transformer
Have you discovered what the little green electrical box in yard your home is?
Figure 1-3 green transformer box/transformer box
what is the small green box outside my house? The residential transformer box outside your home transformer is usually a green residential Pad-Mounted Transformer for house, which is responsible for converting high-voltage electricity into low-voltage electricity for home use, providing power to a residential neighborhood or small commercial building. The electrical transformer residential’s green enclosure is designed to blend in with the environment while protecting the equipment inside from weather and external damage. Mostly found in green neighborhoods powered by underground cables, these residential electrical transformers types offer high safety, low noise levels, and easy maintenance.The electric transformer box making them an important part of modern residential power systems.
Do you know what’s at stake in the power transformer box?
Figure 1-4 are green electrical boxes dangerous/electrical transformer box
Are green electric boxes dangerous ?The electrical transformer box is a common electrical equipment in our daily life, but electricity box outside also has certain safety hazards. If green electrical transformer box is not operated properly or if there is equipment failure, the big green electrical box may cause problems such as high-voltage electric shock, short circuit or fire. In addition, children or small animals accidentally touching an green electrical box can also pose a danger. Although the electromagnetic radiation generated by electric boxes outside is usually within the safe range, the transformers box should keep a proper distance from them. To ensure safety, transformer tone box should not be approached or opened at will during normal times.The small green electrical box in yard should be inspected and maintained regularly by professionals.
Did you know that green electrical boxes outside can just be moved around?
Figure1-5 Transformer green electric box
The green electrical box is an important part of the electrical housing system and is usually responsible for converting high voltage electricity into household transformer electricity. transformer electrical box’s location is carefully designed to meet power distribution needs, as well as safety and ease of maintenance. Therefore, these electrical transformer power box outside house cannot normally be moved at will. If they do need to be repositioned, they must be assessed and operated by a professional power company to ensure the safety and proper operation of the power system.
Types and characteristics of residential transformers for electricity
Do you know what types of residential electrical transformers are available?
Pad Mounted Transformer/Residential Pad Mounted Transformer
What is a pad mounted transformer? A pad mounted transformer for tv is a ground-mounted electrical transformer, pad mounted transformers for electricity are primarily used to convert high voltage power (typically 7.2 kV to 35 kV) to low voltage power (e.g., 240/120 V) suitable for use in residential or small commercial installations. Pad mounted transformers are typically designed as a rugged metal pad mounted transformer boxes with anti-theft locks and high voltage warning signs to protect the pad-mounted transformer’s internal equipment from the environmental elements and outside damage. The 3 phase pad mountedtransformer box in yard is widely used.
3 phase pad mounted transformers are widely used for power distribution in underground transformer cable systems because pad-mounted transformers do not need to be supported by utility poles, three phase pad mounted transformers are clean looking and easy to maintain, and pad-mounted transformers are well suited for urban areas. Small transformers are ideal for urban neighborhoods and public areas that require an aesthetically pleasing design.
Pad mounted transformer building concrete pad first energy installations must adhere to strict guidelines to ensure safety and durability.A properly designed transformer mounting pad is crucial to ensure the stability and safety of the live front transformer installation.
Figure2-1 pad mounted transformer diagram/pad-mounted transformer diagram
Pad Mounted Transformer Dimensions
25 kva pad mounted transformer | 50 kva pad mount transformer | 75 kva pad mount transformer | 100 kva pad mount transformer |
150 kva pad mount transformer | 167 kva pad mount transformer | 300 kva pad mount transformer | 500 kva pad mount transformer |
750 kva pad mounted transformer | 1000 kva pad mount transformer | 1500 kva pad mounted transformer | 2000 kva pad mount transformer |
pad mounted transformer sizes
Figure 2-2 green electric box in yard
Pole Mounted Transformer/Pole Mount Transformer
A pole mounted transformer is an electrical transformer mounted on a utility pole. pole mounted transformers are typically used to convert high voltage (e.g., 7.2 kV or 12.47 kV) to low voltage (e.g., 240/120 V), 3 phase pole mounted transformers electronic and single phase pole mounted transformers are used to power homes, farms, and small commercial facilities. transformers and single phase pole mounted transformers are used to green electrical supply power to homes, farms and small commercial facilities. pole mounted distribution transformers have a compact design that saves space on the ground, making them suitable for use in rural, remote or space-constrained locations. Pole Mounted Distribution Transformers
Pole mounted transformers are directly connected to the overhead cables of the power grid by hanging them from poles. This type of installation facilitates easy access while avoiding the risk of flooding or physical damage to which ground-based transformers may be exposed. They typically provide power in single-phase or three-phase configurations, with flexible options depending on regional needs and load capacity.
Figure 2-3 pole mounted transformer diagram
Common pole mounted transformer specifications
10 kva pole mounted transformer | 15 kva pole mounted transformer | 25 kva pole mounted transformer | 37.5 kva pole mounted transformer |
50 kva pole mounted transformer | 75 kva pole mounted transformer | 100 kva pole mounted transformer | 150 kva pole mounted transformer |
167 kva pole mounted transformer | 200 kva pole mounted transformer | 250 kva pole mounted transformer | 500 kva pole mounted transformer |
Figure 2-4 residential transformer box
Do you know what the characteristics of residential transformers are?
Figure2-5 what’s a transformer
The main feature of residential transformers is to convert high voltage electricity into low voltage electricity for household use, ensuring stable and reliable power supply. Depending on the installation environment, it can be a ground-mounted pad-type transformer suitable for urban residential areas, or a pole-type transformer, which is common in rural and remote areas. They are compact in design, energy-efficient, and meet international energy-saving standards. They are also equipped with sturdy casing and safety devices, and are durable and can usually be used for more than 20 years. These transformers not only ensure the safety of household electricity use, but also have the advantages of environmental protection and energy saving.
The transformer combo includes a power transformer and a circuit breaker in a compact unit for industrial applications.
What are the common voltage specifications for residential transformer?
Figure 2-6 transformer electrical box
In Western countries, the voltage specifications of house transformer is designed to meet the power needs of households and small communities. The input voltage typically ranges from 7.2 kV, 12.47 kV, 14.4 kV, to 24.94 kV. The transformer house seamlessly integrating with the power distribution system. The output voltage is standardized at 240/120 V, which is the widely adopted dual-phase power supply system. This voltage configuration ensures efficient operation of high-power devices such as heat pumps and air conditioners while providing stable power for low-power equipment like lighting and transformer on house appliances. This design not only optimizes power supply efficiency but also aligns perfectly with the power standards used across Western regions.
What is a residential transformer diagram?
Figure2-7 what is a transformers?-house transformer
What does a transformer look like? A residential transformer diagram is a simplified illustration. The pad mounted residential transformer visually represents the internal structure, key components, and wiring connections of a residential transformer for electricity. It typically includes details such as the primary winding (connected to the high-voltage input), the secondary winding (providing low-voltage output like 240/120 V), the core (for electromagnetic conversion), and the grounding system (for safety). These diagrams are commonly used to explain the transformer’s working principle, guide installation, or assist in troubleshooting. They are valuable for both professionals and users to understand how the transformer functions and interacts with the electrical distribution system.
Technical Specifications of Residential Transformers
What is the typical size of a residential transformer?
Figure 3-1 residential transformer box/ transformer box electrical
The size of a residential transformer depends largely on its capacity and installation type. The capacity typically ranges from 15 kVA to 167 kVA, and the dimensions vary by installation type. Pad-mounted transformers are larger, generally measuring 1.2 m × 0.9 m × 1 m, and are suitable for ground installation in urban communities. Pole-mounted transformers are more compact, with a diameter of 60-80 cm and a height of around 1 m, making them ideal for mounting on poles in rural or remote areas.
How is a residential transformer wired?
Figure 3-2 green truck transformer
The wiring of a residential transformer must strictly follow electrical regulations. The high-voltage side typically receives an input voltage of 7.2 kV or 12.47 kV, connected to the power distribution grid. The low-voltage side provides a standard output voltage of 240/120 V, utilizing a dual-phase power supply system to meet household equipment needs. Additionally, a grounding system is essential, connecting the transformer casing to the distribution system’s ground network to ensure safety and prevent electrical leakage. All wiring must be performed by licensed electricians and comply with local electrical standards.
How much does a residential transformer cost?
Figure 3-3 how much does a residential transformer cost
How much do transformers cost? The cost of a residential electrical box transformer includes both equipment and installation expenses. Pad-mounted transformers typically cost between $2,000 and $8,000, with installation costs ranging from $1,500 to $3,000. Pole-mounted transformers are more economical, with equipment costs ranging from $1,000 to $4,000, and installation costs typically between $500 and $1,500. Additionally, annual maintenance costs are approximately $200 to $500, depending on the operating environment.
What is the lifespan of a residential transformer?
Figure 3-4 what is transformer electrical
The designed lifespan of a residential transformer is typically 20 to 30 years, though its actual service life can be influenced by several factors. Proper load usage, favorable environmental conditions, and regular maintenance can significantly extend its life. High-quality modern transformers, when well-maintained, can even last over 40 years. Regular inspections of wiring, cleaning of the casing, and replacement of aging components are critical to ensuring longevity.
Safety of Residential Transformers
How to read a residential transformer nameplate?
Figure 4-1 types of utility boxes in yard
The nameplate of a residential transformer is a metal or plastic label usually mounted on the transformer’s casing, providing key information about the equipment. Common details include the transformer capacity (kVA), input voltage, output voltage, frequency (Hz), phase type (single-phase or three-phase), efficiency rating, and manufacturer information. When reading the nameplate, special attention should be given to the voltage and capacity to ensure the transformer matches the electrical requirements. Additionally, the nameplate may include safety warnings and installation specifications, making it an essential reference for understanding the transformer’s performance and usage guidelines.
pole mounted transformer nameplate
Are residential transformers safe?
Figure 4-2 power box green
Residential transformers are designed and tested to meet stringent safety standards, making them very safe under normal operating conditions. Their casing is made of durable metal, offering waterproof, fireproof, and corrosion-resistant properties. Additionally, they are equipped with anti-theft locks and high-voltage warning signs to prevent unauthorized access. Grounding systems are also in place to effectively protect against electrical leaks and shocks. However, for safety reasons, it is advised not to approach or attempt to open a transformer. All maintenance and servicing should be carried out by licensed professionals.
How far should a transformer be from a house?
Figure 4-3 small transformers electrical
Does transformer need working space clearance in front? The distance between a transformer and a house is typically determined based on safety and maintenance requirements. Generally, a residential transformer should be placed at least 3 meters (approximately 10 feet) away from buildings. This ensures safety by reducing risks of electrical shock or fire and allows for proper heat dissipation and maintenance access. Depending on local regulations or utility company guidelines, this distance may vary, so it is essential to follow specific requirements during installation to comply with safety standards.
Weight and Selection Guide for Residential Transformers
Typical Weight Specifications of Residential Transformers
Figure 5-1 residential transformer box
The weight of a residential transformer green power box varies by type and capacity. Pad-mounted transformers home typically weigh between 200 kg and 2000 kg, with larger models exceeding 2 tons, making them suitable for ground installation. Pole-mounted transformers are more compact, weighing between 50 kg and 400 kg, ideal for pole installations. The exact weight depends on the transformer’s design, materials, and manufacturer, and professional equipment and personnel are required for transportation and installation.
How to Choose a Residential Transformer Supplier
Figure 5-2 green electric transformer box
When selecting a residential transformer supplier, consider factors like product quality, technical support, brand reputation, and after-sales service. Reliable electrical transformer suppliers should offer high-quality transformers that meet international standards (e.g., IEC, ANSI, DOE) and provide customization options to suit specific requirements. Comprehensive technical support and robust green box electrical transformers for sale services ensure smooth installation and operation. Additionally, assess the supplier’s market reputation and value for money to avoid potential issues and achieve long-term cost efficiency. The company transported the industrial electrical transformer on RGN trailers to ensure safe and efficient delivery to the power station construction site.
Shinenergy Can Provide Customized Residential Transformer Specifications
Single phase pole mounted transformer
Figure 6-1 power box green
The single-phase pole-mounted transformer serves as a distribution transformer in decentralized power electrical transformer supply networks, offering several advantages:
High Efficiency and Energy Saving:
- Designed with a high-efficiency, energy-saving wound core structure.
- Reduces low-voltage distribution line losses by over 99%.
Convenient Installation:
- Pole-type suspension installation, small volume, and low capital investment.
- Short low-voltage power supply radius.
High Reliability:
- Fully sealed structure with strong overload capability.
- High reliability in continuous operation.
Technical Data For Single-Phase Pole Mounted Distribution Transformer
Technical Data For Single-Phase Pole Mounted Distribution Transformer | |||||||||
Capacity (KVA) | High Voltage (V) | Tapping Ranges | Low Voltage (v) | Loss (W) | Dimension(mm) | DOE2016 Efficiency | |||
No-load Loss (W) | On-oad Loss (W) | W | D | H | |||||
15 | 2400 4160 7200 7620 12000 13200 13800 14400 19920 24940 34500 | ±2*2.5% | 110 120 208 240 277 347 415 416 480 600 690 | 60 80 100 120 130 150 | 330 370 450 620 850 1150 | 520 560 610 635 754 770 795 | 565 590 625 975 840 965 890 | 905 935 935 1035 1035 1135 1135 | 98.82 |
25 | 98.95 | ||||||||
37.5 | 99.05 | ||||||||
50 | 99.11 | ||||||||
75 | 99.19 | ||||||||
100 | 99.25 | ||||||||
167 | 99.33 | ||||||||
250 | 99.39 | ||||||||
333 | 99.43 | ||||||||
500 | 99.49 |
Single Phase Pad Mounted Transformer
Figure 6-2 electrical transformer residential
Our single-phase pad-mounted transformer features an easy-to-open clamshell cabinet for quick and unobstructed access. This versatile design supports various protection and switching configurations.
Easy Maintenance:
- Clamshell cabinet for fast and easy maintenance.
- Unrestricted access to all connections.
Versatile Design:
- Supports multiple protection and switching configurations.
- Offers various service options.
High Reliability and Safety:
- Meets all reliability and safety standards.
- Ensures stable long-term operation.
Customizable Options:
- Available in various ratings.
- Advanced configurations to meet specific needs.
SPECIFICATION OF 10KVA TO 167KVA
SPECIFICATION OF 10KVA TO 167KVA | |||||||||
Capacity (KVA) | High Voltage (V) | Tapping Ranges | Low Voltage (v) | Loss (W) | Dimension(mm) | DOE2016 Efficiency | |||
No-load Loss (W) | On-oad Loss (W) | W | D | H | |||||
15 | 2400 4160 7200 7620 12000 13200 13800 14400 19920 24940 34500 | 110 120 208 240 277 347 415 416 480 600 690 | 60 80 100 120 130 150 | 330 370 450 620 850 1150 | 610 740 | 740 760 810 960 940 | 840 | 98.82 | |
25 | 98.95 | ||||||||
37.5 | 99.05 | ||||||||
50 | 99.11 | ||||||||
75 | 99.19 | ||||||||
100 | 99.25 | ||||||||
167 | 99.33 | ||||||||
250 | 99.39 | ||||||||
333 | 99.43 | ||||||||
500 | 99.49 |
Three phase pad mounted transformer
Figure 6-3 how long does it take to replace a residential transformer
Standard Compliance:
- Meets ANSI and DOE2016 standards.
- Designed for usual service conditions per IEEE C57.12.00.
High Performance Design:
- Ratings available from 30 kVA to 3000 kVA.
- Primary voltages range from 2.4 kV to 35 kV (150 kV BIL).
- Secondary voltages up to 600 volts.
Versatile Configurations:
- All standard tap configurations available.
- Dual voltage available in most combinations.
- Dual voltage with taps only (series connection only).
- Impedance and loss options available in most designs.
TECHNICAL SPECIFICATION
TECHNICAL SPECIFICATION | ||||||||
Rated capacity(KVA) | VOLTAGE COMBINED | Vector-group | No-load Loss(W) | Load Loss at 85°C(W) | Impedance(%) | Effiency(%) | ||
High Voltage(V) | Tapping Ranges | Low Voltage(V) | ||||||
75 | 2400 4160 7200 7620 12000 12470 13200 13800 14400 19920 24940 34500 | ±2*2.5% | 110 120 208 240 277 347 415 416 480 600 690 | YNyn0Dyn1 | 130 | 1000 | 4.0-6.3 | 99.03 |
150 | 200 | 1800 | 99.16 | |||||
225 | 350 | 3100 | 99.23 | |||||
300 | 430 | 3700 | 99.27 | |||||
500 | 600 | 5410 | 99.35 | |||||
750 | 880 | 7500 | 99.4 | |||||
1000 | 1000 | 10300 | 99.43 | |||||
1500 | 1400 | 14500 | 99.48 | |||||
2000 | 1800 | 18300 | 99.51 | |||||
2500 | 2300 | 23100 | 99.53 | |||||
3150 | ||||||||
3750 |
FQA
How long does it take to replace a residential transformer?
It typically takes 4 to 8 hours to replace a residential transformer green box in yard, depending on factors like location, accessibility, and weather conditions.
How does a residential transformer work?
A residential transformer works by stepping down high-voltage electricity from the power grid (e.g., 7.2 kV or 12.47 kV) to low-voltage electricity (240/120 V) suitable for household use. It uses electromagnetic induction, where the primary winding receives high voltage, and the secondary winding outputs low voltage. This ensures safe and efficient power delivery to homes.
What are clearances for 75 kVA transformer?
the minimum safety and operational distances required when installing a 75 kVA transformer. These clearances ensure safe operation, proper ventilation, and accessibility for maintenance. Safety clearances are typically defined by standards such as the NEC (National Electrical Code) or IEC, and they include space for electrical safety to prevent arcing or overheating, adequate airflow for cooling, and enough room for technicians to perform inspections and repairs. Following these requirements minimizes risks and ensures compliance with regulatory standards.
Where can I find a 24vdc transformer no e79892308 0108271j0 near me?
You can search for the 24vdc transformer no e79892308 0108271j0 at local electrical supply stores, online retailers, or nearby industrial equipment distributors. Ensure to verify the product specifications and availability with the supplier to match your requirements.House transformers I installed last month have significantly improved the power stability in the neighborhood. The Siemens 3 phase power transformer price is competitive.There are 5 green boxes placed neatly along the side of the road.
Where can I find a 1500 kVA transformer with 208/120 V output and reliable service in Downers Grove, IL?
If you’re looking for a 1500 kVA transformer Downers Grove IL, options are available to meet your industrial or commercial needs. For applications requiring 1500 kva transformer downers grove il 208/120 V output, electricity transformer can be sourced to match your electrical requirements. Additionally, reliable transformer electric service downers grove ensures professional installation, maintenance, and repair for all your name of green transformer truck systems.
what is a transformer electricity
Who is responsible for green cable boxes?
Green cable boxes are typically the responsibility of the local utility or telecommunication company that owns them. They manage installation, maintenance, and repairs. For issues, contact the company listed on the box or your local service provider.
green cable box outside
How much does a transformer cost?
The cost of a transformer varies by type and capacity.Residential pad-mounted transformers cost $2,000 to $8,000.Pole-mounted transformers range from $1,000 to $4,000.Industrial transformers can cost $10,000 to over $100,000.Small specialty transformers cost $50 to $500.Installation and maintenance add to the total cost.
what is a electric transformer? what is a transformer electrical