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Pole Mounted Transformers

Name: China Pole Mounted Transformers Manufacturers Suppliers Factory - Wholesale Service - GNEE
Brand: GNEE
SKU: 236700933

Pole-mounted transformers are electric utility distribution transformers fixed on a wooden or concrete electrical service pole at the level of the overhead wires. They are the standard breadbox transformers that convert distribution voltage to the 120/240-volt electricity utilized in households and low-volume business installations in rural areas.

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What is Pole Mounted Transformers

Benefits of Pole Mounted Transformers

Reduced injury risks
Residents are less likely to be injured by pole-mounted transformers. Pole-mounted transformers are kept out of reach from children and are isolated from many potential igniting sources.

Increased supply
Pole-mounted transformer offer increased power supply, as they achieve easier distribution through the installation of necessary power lines.

Space saving
Pole-mounted transformers are small and do not take up valuable ground space.

Pole Distribution Transformer

Pole-mounted distribution transformers are mounted above ground on poles. These transformers are manufactured to standard designs, primarily for power distribution companies. These transformers typically service urban and rural residential and commercial loads.

Single Phase Pole Mounted Transformer

Three Phase Pole Mounted Transformer

Pole Mounted Current Transformer

Pole Mounted Transformers are a type of breadbox distribution transformers having mounted on an electric service pole of wood or concrete. They are held usually at the level of the upper wires.

Single Phase Pole Mounted Transformer 12

Pole Mounted Transformers

Pole-mounted transformers are power distribution transformers that are mounted on a power pole (wood or concrete) and usually horizontal to overhead cables.

Why Choose Us

Professional Competence
GNEE are professional one-stop solution for steel products of China. Self-designed Corten steel design and rust technology have reached the world average technical level.

Comprehensive Quality Service
Which continuously satisfy different needs of customer around the world in the steel supply chain area. Professional sales team, providing customers with first-class services; strict purchasing and quality inspection team, carefully selecting high-quality raw materials; advanced scientific and technical team to improve production and reduce costs for customers; excellent design and processing team, carefully crafted and refined; intimate shipping logistics team protecting product transportation.

Excellent Service Team
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Competitive Pricing
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Understanding the distinctions between pole-mounted and pad-mounted transformers

Aspect	Pole-Mounted Transformers	Pad-Mounted Transformers
Installation Location	Utility Poles	Concrete Pads or Enclosures
Accessibility	Easier to access for maintenance	Ground-level installation, may require less maintenance effort
Cost	Generally, more cost-effective	Slightly higher installation and unit cost
Space Efficiency	Require more space	Compact and space-efficient
Noise Production	May produce more noise	Produces less noise
Visual Impact	Because of the utility poles required, they are more of an eye sore if the other utilities are buried	May blend better in certain areas

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What is the reason for mounting a transformer on the pole

The purpose of the transformer is to step the utility distribution voltage (2.4–7.2kV line-ground) down to the utilization voltage (120/240V) used by the residential and smaller commercial customers in the most economical way possible. Distribution transformers can be installed either overhead or underground, depending on how the surrounding distribution system is installed, which depends on the availability of aboveground and belowground space for the construction/installation of the associated utilities, Distribution transformers are often pole-mounted when the surrounding distribution system is overhead (note 4A & 5A). They are typically mounted at ground level (i.e., pad mounted) when the surrounding distribution system is underground (notes 4B & 5B).
Pole mounted transformers are utilized where the surrounding distribution system (5A) is located overhead, as this is the most economical method of installing/routing the associated primary and secondary conductors.
Where the surrounding distribution system is installed underground, pad-mount transformers (5B) are utilized. The primary and secondary distribution conductors are installed below grade, using a system of underground manholes, conduits and junction/tap boxes.

How Do Pole-Mounted Transformers Work

Pole mounted transformers are on concrete poles so that the electricity they generate is equally transmitted perpendicular to the electrical lines.
To make the high power more manageable, these transformers step it down to 400V.
In most cases, engineers favor these pole mounted transformers due to their lightweight and minimal aesthetics.
Larger units require two poles, smaller ones that are less than 5 meters in height may be generally fixed securely on buildings that only require a single pole.
Both humans and animals are generally protected from harm, and acts of damage are less likely to take place.

Single Phase Pole Mounted Transformer 14

Pole Mounted Transformer Market Size

The Pole Mounted Transformer Market is a specialized segment within the electrical equipment industry, focusing on transformers installed on utility poles to facilitate the efficient distribution of electrical power. Pole-mounted transformers play a critical role in stepping down high-voltage electricity from power lines to lower voltage levels suitable for residential, commercial, and industrial use. These transformers are essential components in electricity distribution networks, ensuring the safe and reliable delivery of power to end-users. The market is defined by its commitment to providing efficient and compact transformer solutions for overhead power distribution systems.
Several key drivers contribute to the growth of the Pole Mounted Transformer Market.the increasing demand for reliable electricity supply in both urban and rural areas drives the adoption of pole-mounted transformers as they facilitate the effective distribution of power over long distances. The growing emphasis on renewable energy sources and smart grid technologies also contributes to market expansion, as pole-mounted transformers play a crucial role in integrating distributed energy resources into existing power grids. The need for cost-effective and space-efficient solutions in power distribution networks, especially in areas with limited space for traditional substation installations, propels the demand for pole-mounted transformers. Market segmentation in this industry typically involves categorizations based on the transformer type, including single-phase and three-phase transformers, considering the specific voltage requirements and distribution needs of different regions and applications.segmentation may occur based on the end-user sectors, such as residential, commercial, and industrial, ensuring that pole-mounted transformer solutions are tailored to meet the diverse requirements of various segments within the electricity distribution landscape.

Single Phase Pole Mounted Transformer 1

Why some transformers are placed on the electric poles while others are placed on the ground

Transformers are placed on electric poles or on the ground based on a variety of factors, including the specific needs of the electrical system and the environment in which they are installed.
Transformers on electric poles are often used in areas where space is limited or where it is more efficient to distribute electricity from an elevated position. This can also help protect the transformer from potential damage from flooding or other environmental factors.
Transformers placed on the ground are commonly used in areas where there is more space available and where it is easier to install and maintain them at ground level.ground-mounted transformers may be preferred in certain urban or suburban areas where underground distribution systems are more common.
The decision to place a transformer on a pole or on the ground is typically made by electrical engineers and utility companies, taking into account factors such as safety, accessibility, and the specific requirements of the electrical grid in that location.

What are the requirements of installing the pole-mounted transformer

Construction preparation
Conduct on-site surveys, determine construction plans, and write construction standard work cards.
Conduct electrical tests on electrical equipment to ensure that the equipment is qualified.
Check whether the construction tools and equipment are sufficient and intact, and whether the mental state of the personnel is suitable for the construction operation.
Check whether the double-pole assembly is upright, whether the buried depth meets the specification requirements, the double-pole root opening error should not exceed ±30mm, and the double-pole height difference should not exceed ±20mm.
Check whether the grounding production meets the specifications and whether the grounding resistance meets the design requirements.

Installation of the cross arm
The cross arm should be made of galvanized angle steel and channel steel, and the cross arm should be installed in the order from top to bottom.
For the double-pole cross-arm, the height difference between the cross-arm and the pole should not be greater than 5/1000 of the connection distance, and the left and right skew should not be greater than 1/100 of the length of the cross-arm.
The distance between the cross arm of the drop fuse and the transformer channel steel should not be less than 2.5m, to ensure that the fuse tube of the drop fuse can maintain a sufficient distance from the distribution transformer when it falls off.
Bolt passing through: three-dimensional structure: the horizontal direction is from the inside to the outside, and the vertical direction is from the bottom to the top.
Planar structure: along the line direction, the double-sided components are from the inside to the outside, the single-sided components are penetrated from the power transmission side or in the same direction;
in the horizontal line direction, the two sides are from the inside to the outside, and the middle is from left to right (facing the power receiving side) or Press uniform direction; vertical direction, from bottom to top.
When the screw must be gasketed, each end should not exceed 2 gaskets. The bolts should be perpendicular to the plane of the member and should not have gaps.

The common accessories of Pole Mounted Transformer

Lightning arresters: These are devices that protect the transformer from lightning strikes. They discharge the high voltage current caused by lightning strikes to the ground, ensuring that the transformer and surrounding electrical equipment are not damaged.

Voltage regulators: These devices regulate the voltage level of the electrical current flowing into the transformer. They ensure that the voltage level at the output terminals of the transformer remains within an acceptable range, even if the input voltage fluctuates.

Insulators: These are materials that do not conduct electricity and are used to support the transformers and power lines. They ensure that there is no electrical current flowing to the ground through the pole.

Oil level indicators: These devices are used to measure the level of oil in the transformer. They help to ensure that the transformer is properly lubricated and performing efficiently.

Pressure relief devices: These devices are designed to release pressure from the transformer in case of an overpressure situation. This ensures that the transformer remains safe and efficient.

Terminal connectors: These are connectors used to connect the transformer to the power lines. They ensure that the electrical current flows properly from the power lines to the transformer.

Our Factory

The products have passed SGS, intertek, CCC, CE and other international certifications. Noise, easy installation, energy saving and emission reduction, long service life, etc. The product production cycle is short, easy to install, and fast delivery. At present, the company has more factories.Our team is composed of very professional engineers. We strive to deliver you on time within the budget Power equipment, and provide excellent product quality. Provide you with the ultimate experience.

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Certificate

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FAQ

Q: What Are The Different Pole Transformer Sizes?

A: In general, the power output for pole transformer sizes was typically between 5 kVA to 333 kVA.
They can be between these rating capacities:
Kilowatt-volts: 5, 10, 15, 25, 37, 50, 75, 100, 167, 250, 333 (kVA)
Distribution lines provide electricity from regional substations to the homes and businesses that need it.
Power is transmitted across distances of up to 30 miles at primary voltages of 4.6 to 34.5 kilovolts (kV).
Then transformed to the secondary voltage necessary by the customer using pole mounted transformers.
At the same time, sub-transmission lines carry power from regional substations to local substations at a higher voltage.

Q: How Much Is A 25 kVA Pole Mounted Transformer Price?

A: Generally, the actual 25 kVA pole mounted transformer price is between $980 and $1100 on average.
Single Phase 25 kVA Pole Mounted Transformer: US$ 1500-$5000
Three Phase 25 kVA Pole Mounted Transformer: $1,800-$8000
Some suppliers offer free replacement components for damaged parts within the warranty period.
In some cases, the warranty period might be up to 18 months from the date of purchase.

Q: How much copper is in a pole mounted transformer?

A: For oil-type transformers, the copper-containing weight is 20% of the total weight of the transformer.

Q: Why is it necessary to ground the neutral of a pole mounted transformer?

A: Grounding the neutral point can return the phase wire of the equipment in which the accident occurs to the "shell" to the transformer through the ground and the ground wire connected to the neutral point,so that a short-circuit fault occurs in the system, thereby forcing the air circuit breaker or fuse to disconnect, protecting the human body safety.

Q: What size are pole transformers?

A: It depends on single phase pole mount transformer or three phase pole mount transformer. And also depends on the capacity, please check this link for more detailed information of our transformer.

Q: How many houses can one pole-mounted transformer supply?

A: A pole-mounted transformer can typically supply power to multiple houses, depending on the size and capacity of the transformer. The number of houses it can supply will depend on factors such as the electrical load of each house and the capacity of the transformer. In residential areas, it's common for a single pole-mounted transformer to supply power to several houses within close proximity. If you have specific questions about the capacity of a transformer in a particular area, it's best to consult with a qualified electrician or the local utility company for more detailed information.

Q: What is the utility pole transformer?

A: Utility pole transformer applies to single-phase, single-bushing, 60 Hz distribution transformers suitable for direct pole mounting and designed for operation on an effectively grounded wye system, type ONAN, rated at 167 kVA or below, with an insulation class of 25 kV or less.

Q: What do transformers on utility poles do?

A: Voltage Reduction: The primary function of a utility pole transformer is to convert high-voltage electricity received from the power grid into a lower voltage suitable for use in commercial establishments and residences.
Isolation: Power pole transformers are designed to provide isolation between the primary winding (connected to the high-voltage source) and the secondary winding (connected to the low-voltage output). This isolation is essential for safety and to prevent interference between circuits.
Power Distribution: Pole-mounted transformers play a key role in transmitting electricity to towns and remote rural areas. They act as intermediaries in the power grid system, ensuring that electricity reaches various locations to meet diverse power requirements for lighting, appliances, and other electrical devices.

Q: What are pole-mounted transformers filled with?

A: The power pole transformer is mainly composed of an iron core and winding. It is the magnetic path channel of the iron core transformer, and the winding is the circuit part of the transformer, which is made up of enameled wires with a certain number of turns. When it is connected to the power supply, we call it the primary winding, which is also called the primary winding. Connected to the load, we call it secondary winding, also called secondary winding or secondary winding. The basic forms of iron core structure include the core type and shell type. The core column of the transformer with the core structure is surrounded by windings. Simply put, the winding surrounds the iron core, so the structure is simple, and the assembly and insulation are easy, so the transformer often adopts the core structure. The shell structure is that the iron core surrounds the winding. The shell-type transformer has high mechanical strength and exposed teeth, but its manufacturing process is complicated and more materials are used. It is usually only used in low-voltage high-current transformers or small-capacity power transformers.

Q: Why are pole mounted substations very popular?

A: This substation design is the cheapest, smallest, and easiest to install. There is no requirement for a structure to house this substation. This pole-mounted substation supplies most of the electricity for our home.

Q: Why are transformers on poles?

A: Pole-mounted transformers, as the name suggests, are installed on utility poles, typically found in rural or residential areas. They serve as a link between overhead high-voltage lines and lower-voltage distribution lines.

Q: What is the main purpose of pad mounted or pole mounted distribution transformers?

A: Both pole-mounted and pad-mounted transformers convert the high 'primary' voltage of the overhead or underground distribution lines to the lower 'secondary' or 'utilization' voltage inside the building. The primary distribution wires use the three-phase system.

Q: Are pole mounted transformers safe?

A: Pole-mounted transformers are high-voltage electrical devices that pose a risk of electric shock or electrocution. Insulating gloves, dielectric footwear, and other electrically rated PPE provide a protective barrier, reducing the risk of electrical injuries.

Q: What do pole mounted transformers do?

A: Power Distribution: Pole-mounted transformers play a key role in transmitting electricity to towns and remote rural areas. They act as intermediaries in the power grid system, ensuring that electricity reaches various locations to meet diverse power requirements for lighting, appliances, and other electrical devices.

Q: What are pole mounted transformers filled with?

A: The core and coil assembly are immersed in a cylindrical steel tank filled with high-grade mineral oil especially refined for electrical use. This oil provides both electrical insulation and cooling to the windings of the transformer.

Q: What is the safe distance from a pole-mounted transformer?

A: 10 feet
Pole-mount transformers should be treated in the same manner, as an overhead power line. Always maintain a safe distance of at least 3 metres (10 feet) from any pole-mount transformer.

Q: Are pole mounted transformers oil filled?

A: Single-phase overhead transformers can be filled with standard electrical grade mineral insulating oil or fire-resistant FR3 fluid.

Q: How much does it cost to put a transformer on a pole?

A: A residential transformer costs $3,000 to $20,000+ installed, depending on size and type. Running new electrical lines may require installing one or more transformers, depending on the distance from the property to the closest existing transformer. Most companies require a transformer within 150' of the house.

Q: How are pole transformers rated?

A: The standard single phase transformer power rating is from 5-167kVA. Daelim can be customized according to your needs, the maximum capacity can reach 333kVA. The following table is the standard of single phase transformer specifications.

Q: What is the difference between pole mounted and pad-mounted transformer?

A: If mounted on a utility pole, they are called pole-mount transformers. If the distribution lines are located at ground level or underground, distribution transformers are mounted on concrete pads and locked in steel cases, thus known as distribution tap pad-mount transformers.

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