15 kV Transformer
Transformer is an indispensable power facility in today. It can help us convert the voltage so that our electrical appliances can operate normally. 15 kv transformer is a typically rated voltage transformer in our daily life.
Dealim has provided insurance and reliable equipment and service for its customers for the past 15 years, it has a professional design team and service team and your procurement process will be connected with you by a professional sales team. Dealim will always meet the needs of customers and earn their trust by being a trusted partner for them. 15kv transformer is one of the most common types of transformers produced by Daelim. Next, let’s learn more about the 15 kv transformer.
Small-substastion Transformer
Single Phase Pole Mounted Transformer
Oil Immersed Power Transformer
Table of Content
What does KV mean on a transformer?
kV stands for kilo-volts which is the unit for voltage capacity. The first kV rating indicates the device’s input or primary load capacity in transformer specifications.
What is the meaning of a 15kv transformer?
15kv transformers usually refer to distribution transformers, its high voltage is usually 15kv and its capacity is usually less than 5000kva.
Types of 15kv transformers
With the development of science and technology, transformers can be divided in to different types, take 15kv transformer as example, it can be divided into 15kV pole mounted single-phase transformer, 15kV dry type transformer, 15kV oil-immersed transformer, 15 kV single phase pad mounted transformer and 15kV three phase pad mounted transformer.
Learn more: 5+FAQ About 15kV Transformer
15kV pole mounted single-phase transformer
15kV pole mounted single-phase transformer is a distribution type transformer, it is designed for servicing residential overhead distribution loads. We usually use it in commercial loads and industrial lighting, etc. It can be divided into the conventional type and CSP type.
Conventional type pole mounted transformer is a cylinder-sealing structure, including supporting lugs with ANSI standard, eyebolts, connecting terminals, hooks, grounding devices, and high and low voltage bushings.
The CSP type usually includes the function of lightning protection and short circuit protection. The difference between the CSP type and the conventional type is that the high voltage bushings’ of the CSP type are usually with fuses, and also include one or two arresters on the tank and a secondary breaker switch above the winding.
Here is some common information about the 15kV pole mounted single-phase transformer.
- Primary voltage rating:
34.5-19.92/13.8-7.957/13.2-7.62/12.47-7.2 or others
- Secondary Voltage Ratings:
120-240/240-480/347/600V or others
- Commonly used capacity:
15kVA, 25kVA, 37.5kVA, 50kVA, 75kVA, 100kVA, and 167kVA.
- HV. TAP RANGE:±2×2.5% or others
Advantages of 15kV pole mounted single-phase transformer:
- small size
- low loss
- slight iron loss
Try for free: Tips of single phase transformer
15kV Dry type transformer
Dry-type transformers usually use epoxy resin as their cooling material and are usually used in power transmission and distribution systems, especially for heavy load centers and places with special fire protection requirements.
Here is some common information about 15kV dry type transformer.
- Primary Voltage Ratings: 6-13.2/20-24/35-38.5 or others
- Secondary Voltage Ratings: 0.2-0.6kv or other
- H.V. TAP RANGE: ±2×2.5%
- CONNECTION TYPE: Dyn11 Yyn0
Advantages of 15kV dry type transformer:
- low loss
- Compact
- light weight
- low noise level
- damp-proof
- high mechanical strength
- flame resisting
- strong overload ability
- low partial discharge quality
learn more: Dry Transformer VS Oil Transformer
15 kV Oil Immersed Transformer
Nowadays, oil-immersed transformers are an indispensable type of transformers in various electrical power projects. It is usually used in power distribution systems such as factories, mines, petrochemical agriculture, etc., and it is also used in places where oil and chemicals are stored.
Advantages of 15kV oil-immersed transformer:
- strong adaptability to the environment
- good insulation and thermal conductivity
- high mechanical strength
- strong short-circuit resistance
- low cost
Disadvantages of 15kV oil-immersed transformer:
- transformer oil is flammable
- oil leakage failures occurinsulation materials will age and reduce insulation performance over time
Get it now: Basic Guide To Oil Immersed Transformer
15 kV Single phase pad mounted transformer
Single phase pad mounted transformer adopts a clamshell design, which facilitates the connection of cables and electrical components. It is Commonly used in urban power grids, rural power grids and industrial loads. The cabinet also has a multifunctional design to meet the configuration of protection devices and switches. For wind power, the transformer can be installed at the bottom of the tower, while in solar power applications, the transformer can be used stand-alone or as a component in an overall solution.
Here are some common information about 15 kV single phase pad mounted transformer.
Primary Voltage Ratings:
34.5-19.92/13.8-7.957/13.2-7.62/12.47-7.2 or others
Secondary Voltage Ratings:
120-240/240-480/347/600 or others
H.V. TAP RANGE: ±2×2.5% or others
CONNECTION TYPE: Delta or Wye
TYPE: Dead front or Live front
BIL: 30-150
Advantages of 15 kV single phase pad mounted transformer:
1.Compact structure
2.suitable for installation on the ground
3.convenient for connection with underground cables
15 kV Three phase pad mounted transformer
Three phase pad mounted transformer adopts an independent cabinet structure, and the top of the cabinet is designed to be inclined to facilitate effective drainage. At the same time, the cabinet is also convenient for the installation of components. This type of transformer can meet the configuration requirements of loop feed and radial feed. It is usually used in underground power distribution loads such as shopping centers, schools, institutions and industrial plants.
Here are some common information about 15kV three phase pad mounted transformer.
- Primary Voltage Ratings:
34.5-19.92/13.8-7.957/13.2-7.62/12.47-7.2 or others
- Secondary Voltage Ratings:
240/480/480Y-277/600Y-347 or others
- V. TAP RANGE: ±2×2.5% or others
- CONNECTION TYPE: Dyn11/Yyn0 or others
- TYPE: Loop feed or Radial feed
Advantages of 15kV three phase pad mounted transformer:
- high voltage
- no drifting of the neutral point
- low loss
- small volume
- cost-effectiveness
- Safety
- environment protection
attractive appearance
What is the price of 15 kV transformer?
Different types of transformers have different prices, and the price of a transformer depends not only on its voltage level, but also on other factors.
First, the type of transformers is a key factory. Take dry type transformer and oil-immersed transformer as an example, the price of dry type is higher than the oil-immersed.
Second, the capacity of the transformer is a key factory. As we all know, the higher the capacity of the transformer, the higher the price of the transformer.
Third, the winding material of the transformer is a key factory. We usually use aluminum or cooper as the winding material, but the price of cooper are more than 25% more expensive than aluminum.
Last, the accessories required by customers is a key factory. Different accessories have different prices. We will install different accessories for transformers according to customer requirements, so the prices of transformers are also different.
How much does a 15kV transformer weight?
Take 1000kva transformer as an example, the weight of a 1000kva pad mounted transformer is about 4050KG, the weight of a 1000kva oil-immersed transformer is about 2760KG, the weight of a 1000kva dry type transformer is about 3410KG.
learn more: The Ultimate Guide To Transformer Designs
What is the loss of 15kV transformer?
Take 1000kva transformer as an example, the no-load loss and on-load loss of a 1000kva pad mounted transformer is about 1150W and 10300W, the no-load loss and on-load loss of a 1000kva oil-immersed transformer is about 1150W and 10300W, the no-load loss and on-load loss of a 1000kva dry type transformer is about 2070W and 9780W.
You may enjoy: How Much Do You Know About Losses
15kv transformer dimension
Take 1000kva transformer as an example, the dimensions of a 1000kva transformer has somewhat different depending on the type. The dimensions of a 1000kva pad mounted transformer is about 1651×1549×1854（㎜）, the dimensions of a 1000kva oil-immersed transformer is about 1880×1170×1590（㎜）, the dimensions of a 1000kva dry type transformer is about 1740×960×1660（㎜）
How much oil is in a 15kV transformer?
Take 1000kva transformer as an example, the oil in a 1000kva transformer has somewhat different depending on the type. The oil in a 1000kva pad mounted transformer is about 650KG,the oil in a 1000kva oil-immersed transformer is about 450KG.
What 15kV transformer can not do?
A 15kv transformer can not correct voltage fluctuations. As we all know, the voltage of the transformer usually has a fixed ratio, although we change the input and output voltage but its ratio will not change. A 15kv transformer can not change the frequency. The frequency of the transformer output voltage is determined by the frequency of the input voltage, and the frequency of the input voltage is determined by the generator set of the power plant. It also can not change the power. As we all know power=Volt*Amps, if the voltage increases then the amps decreases and likewise if the amps increases then the voltage decreases
learn more: How to produce a distribution transformer?
Where can you customize 15kv transformers?
Daelim , a professionally transformer manufacture that full of experience export to North America, South America and Canad. We have rich international standard design experience such as CSA, IEEE/ANSI which can meet all your requirements. Daelim has the most professional design team and service team, which can help you solve any problems with transformers and provide you with the best solutions. Our factory has the most professional and complete facilities, which can produce all kinds of transformers you need and provide customized services. If you want to customize 15kv transformers or any other types of transformers, Dealim is your best choice.
