The Ultimate Guide to the 1000 kVA Transformer

What Is A 1000 kVA Transformer?

A 1000 kVA transformer is generally utilized in the process of transforming a high-voltage power supply line into a low-voltage power supply line. It uses kilovolt-amperes as the units of measurement for the transformer's apparent power (kVA). It is capable of withstanding a voltage of 120 and an amperage of 8333. Some of these applications include the distribution of electric power and the reduction of primary voltage. 

At the same time, 1000 kVA transformers can be mainly applied in energy management systems and municipal and industrial facilities.

What Is The Function Of A 1000 kVA Transformer?

In order to convert a high-voltage power supply line into a low-voltage power supply line, a 1000 kVA transformer is often used.

In the context of a transformer, this describes the maximum amount of power that the device can manage.

The perceived power of the transformer is generally measured in kilovolt-amperes (kVA). 

In a 1000 kVA transformer, you may safely apply 120V and 8333A to a 1000kVA without harm.

A 1000 kVA transformer has several uses in industry and government.

Electric power distribution, primary voltage reduction, energy management systems, and municipal and industrial facilities are only a few examples.

kVA Value

If you want to know how much apparent power a transformer can safely handle, go no further than its kVA rating. 

You may determine it by dividing 1000 by the product of the transformer's rated voltage and rated current. 

The highest apparent power that a 10 kVA transformer can take is 10,000 VA, given that its rated voltage is 480 V and its rated current is 20.8 amps.

Keep in mind that kilowatts (kW), the actual power mainly used, are typically measured in a different way than kilovolt amperes (kVA). 

When converting between kVA and kW, the power factor of the load is primarily taken into account. 

In most cases, the actual power output of a transformer will be lower than its rated output.

How Much Is The Standard 1000 kVA Pad Mounted Transformer Price?

One may get a pad-mounted 1000 kVA transformer for a price that falls between $5000 and $7000. Having said that, certain manufacturers will only offer it to you for a price that falls anywhere between $8800 and $9800.

At the same time, the price of a 1000 kVA pad mounted transformer might range anywhere from $8,900 to $26,000. Energy-efficient transformers fall within this price range.

How Much Is A 1000 kVA Pad Mounted Transformer Price At Daelim?

On the other hand, each set of 1000 kVA pad mounted transformers may be initially purchased from Daelim for a price ranging between $10,800 and $15,800.00.

You can count on Daelim to provide for your needs with a comprehensive range of transformer sizes, from small to massive up to 1000 kVA. They only offer the highest quality and dependability types of 1000 kVA pad-mounted transformers.

What is a 1000 kVA small substation transformer?

A 1000 kVA small substation transformer is an oil-immersed transformer commonly used in the American and Australian regions. It has a capacity of 1000 kVA and is typically installed on a cement pad to connect with protective equipment like high and low voltage switch cabinets. These transformers play a crucial role in distributing electrical power and ensuring safe and efficient operation within a substation. They are designed to handle high voltage levels and provide reliable power supply to various electrical systems and equipment.

Learn more about Small Substation Transformer

What Exactly is A 1000 kVA Dry Type Transformer?

Dry-type transformers are not essentially required to use liquid to prevent overheating and conform to temperature categorization standards.

The coils of a 1000 kVA dry type transformer are usually made of dry or gaseous materials rather than liquid insulation.

Features

With 1000 kVA dry type transformers, the high-voltage windings are not typically enclosed.

Because none of the moveable components of a dry-type transformer are generally made of liquid, this kind of transformer does not require any kind of lubrication. 

Because of this, there is no longer a necessity for the transformer to be always greased.

They do not have an ignition temperature, and you do not need to utilize bushings with them in any application. 

Consumers are now relieved that they no longer need to be afraid of the possibility of fires or oil leaks.

Applications

The distribution of electrical power and the reduction of primary voltage is normally where 1000 kVA dry type transformers are always put to use.

In addition, they can be also applied to the fabrication of urban infrastructure and commercial properties, and the power transmission underground in industrial settings.

What is the General 1000 kVA Dry Type Transformer Price?

The price of a big transformer that complies with an industry-standard might be in the thousands of dollars range. Meanwhile, small, basic ones can be available from limited suppliers. Typically, the cost of a transformer will decrease as its size decreases.  Along with that, the cost of a low-voltage transformer is often much lower than that of a high-voltage one. 

The lowest voltage power transformers with 1000 kVA are only available for a price range of $980 to $1100. At the same time, some manufacturers will only sell it to you for a price that ranges from $6000 to $73,000. For energy efficient, low voltage transformers, a 1000kVA dry type transformer price might vary from $17000-$85000.

How Much Is A 1000 kVA Dry Type Transformer Price At Daelim?

On the other hand, you may get it from Daelim for a price that ranges from $12,600.00 to $18,800.00 for each set of 1000 kVA dry type transformers. When it comes to Daelim, all 1000 kVA dry type transformers are practically put through their paces before generally being shipped out of the plant. 

What Is A Transformer Nameplate?

A transformer nameplate is a plaque permanently affixed to its tank that details the transformer's wiring and how to use it. As you can see, the nameplate on a transformer has been generally compared to a birth certificate because of the information it contains. Like any other electrical component, a transformer is typically designed to function inside a certain system with specified operating conditions, including voltage, frequency, load, and so on.

Verifying the information on the nameplate ensures the transformer was practically installed and is highly maintained correctly. Above all, the nameplate must never be significantly changed or deleted.  An appropriate transformer nameplate will have the following sections: introduction, terminal diagram, schematic, vector reference, and voltage ratio table.

Learn more about Transformer Nameplate

What Are The 1000 kVA Transformer Specifications On The Nameplate?

The following is a list of the standard minimum details that should appear on a 1000 kVA transformer's nameplate. These are all mainly provided by the product's designer and manufacturer. 

For 1000 kVA transformer specification, the following information and data are highly required by the standards.

• Manufacturer's Name
• Date of Manufacture and Serial Number
• The kVA or MVA rating of the number of phases
• Frequency
• Ratings for voltage
• Measured Tap voltages
• Network Diagram
• Cooling Classification
• Temperature Rating
• Polarity 
• Diagram of a phasor or a vector 
• Impedance
• Transformer's approximative mass or weight
• Insulating Liquid
• Winding's conductor material.
• Quantity of oil 
• Manual for Installation and Operation

Reading more about Transformer Specifications

What's A 1000 kVA Transformer Nameplate?

Daelim has all the complete nameplates for 1000 kVA transformers.  Their 1000 kVA standard items will display all necessary information, such as weight, copper weight, measurements, and more, so consumers may buy with confidence.

Let's take a look at what's inside a 1000 kVA transformer nameplate. 

1. Manufacturer's Name

The name of the manufacturer is often placed at the top of the nameplate. Each product comes with a unique serial number and brand name that may be generally used to trace its production and development timeline. In a sense, the nameplate may be always considered an official form of identification.

Manufacturer's Name: Daelim Belefic 

Date of Manufacture and Serial Number:  MT-PMD-3P-132002D-1000kVA-208Y.120-N3R Pad Mount Transformer

2. Type of Cooling, Maximum Allowable Current, Phase, and Frequency

The number of phases, the maximum operating frequency, and the method of cooling used may all be frequently shown on a transformer. Transformer systems come in a broad variety of configurations.

This transformer can handle 1000 kilowatt-hours of power.  The output of a transformer is typically measured in kilovolt-amperes (kVA) rather than kilowatts (kW) since it is a power converter (kVA).  Underrated current, there is a maximum "Mechanical and Electrical" operating current to prevent the machine from overheating.

kVA or MVA rating/number of phases: Three Phase 

Primary Voltage: 13200V Delta 

Primary Configuration: Delta

Secondary Voltage: 208Y/110

Frequency: 60 Hz

Cooling Classification: ONAF

Enclosure Material: NEMA Type 3R Heavy Duty

3. Voltage Ratings and Windings

When determining a transformer's voltage rating, both the line-to-line system voltages and the winding voltages must be always considered. A transformer with an input of 1000kV, an output of 110 kV, and a tertiary can have the following labeling:

If a nameplate Y appears without a slash after the voltage designation for a winding, then the connection is always a Y without a neutral bringing out. Both ends of the winding will have a label indicating whether it is a star or delta connection. 

This distribution transformer has a delta primary winding and a star secondary. Single-phase wiring requires a secondary-side neutral.

H.V. Winding: Delta

L.V. Winding: Star

Neutral brought out for earthing: Yes

Rated Voltage of H.V. (Volts) 11000 Current: 52.49 amps

Rated Voltage of L.V. (Volts) 433 Current: 1333.37 amps

4. kVA Ratings and Temperature Rise

Depending on the winding temperature rise and cooling method, the nameplate will list the nominal kVA or MVA values. There are oil-filled transformers with kVA and MVA ratings that specify 65°C and 55°C temperature increases, respectively.  The 150°C temperature increase is the basis for the established standard ratings for 1000 kVA transformers.

To work at temperatures of 75 degrees Celsius or greater, high-performance insulating materials like silicone fluids are necessary. The kVA ratings at the larger temperature rise would be generally displayed on the label in this case.

kVA: 1,000 NEMA 3R, Dry Type

Temperature Rise: 150°C

Overload capacity As per IS: 6600

5. Winding Connections, Load Loss, Impedance

The windings and taps, as well as their connections, should be clear and are mainly named on a 1000 kVA transformer's nameplate. These include the tables that detail the location of each tap, its rating, and the pipes to which it is generally attached. Transformer connection tables and diagrams are commonly seen in load tap altering apparatus.

On one side of the transformer, the impedance of the windings is typically expressed as a percentage. If the low side is short, the voltage must be a percent higher than the rated value to generate the same amount of current on the high side. When no load is currently applied, the core loss is generally quantified by the open circuit loss. 

At the same time, the amount of copper lost in the winding when working at full load at a certain temperature is generally known as load loss.

Taps: (4) Taps of +2% @ 2.5% and -2 @ 2.5%

Impedance: 6.39%

Winding Material: Aluminum

No load losses: 1200 at 75 deg. C ( Watts )

Copper losses: Subject to IS Tolerance

Mounting: Pad Mount

Reading on: The Impact of Impedance on Transformer Design

6. Vector Groups

Such vector diagrams may always be usually found on the nameplates of polyphase transformers. This is the standard term used by the International Electrotechnical Commission (IEC) to describe both HV and LV winding configurations. The phase difference between the primary and secondary circuits is the most typical interpretation of this term.

To use the transformer in parallel, the vector group is essential. Here's the symbol for a 1000 kVA transformer vector group.

Vector Symbol: Dyn11

7. Dimensions, Oil Mass, and Weight, Copper Weight

A 1000 kVA transformer nameplate will often include such details as the approximate shipping weight and oil volume in U.S. gallons. Weights and capacities for both components and oil are generally included. During untanking, the heaviest part is always the one that goes on top.

The density of transformer oil is the same as that of the transformer itself. The crane may be able to raise the transformer without using any oil. Additionally, we can also see here the 1000 kVA transformer weight, size, and dimension.

At the same time, a 1000 kVA transformer copper weight and tank fitting are usually included.

Dimensions: 71.00"H x 90.00"W x 62.50"D

Weight: 5942 lbs

The volume of insulating Oil: 990+300 Ltrs 3

Tank and fittings: 1670 kgs

OLTC Weight with Oil: 610.5 kgs

Total Weight of Transformer: 4300 kgs

Copper Weight: 3350 kgs

8. Degree of Insulation

A 1000 kVA transformer nameplate displays the BILs of the windings at every terminal and the bushings. The insulation level of a transformer is the resist voltage that cooperates with the protective arresting gear to decide how much overvoltage the transformer can sustain. This is usually determined by the maximum voltage of the device, represented by the symbol Um.

Being the peak value of a standard lighting impulse wave, the Basic Insulation Level serves as a reference voltage level (BIL). The strength of the insulation test wave is mainly limited by the capabilities of the equipment.

HV Winding (KV uniform ): 11

LV Winding (KV uniform): 1.14

HV Winding turn Insulation: DPC

LV Winding turn Insulation: DPC

Between HV and LV Winding: Oil Duct + Solid Cylinder + Oil Duct

Between LV Winding and Core: Solid Cylinder

9. Certifications and Ratings

Certifications provide utilities and other consumers assurance that the products are trustworthy and safe to use. Daelim is responsible for the design and construction of these type-tested sample transformers, and all necessary accessories must be UL-approved.  Furthermore, Daelim's excellent technological standards and stringent quality assurance methods allowed it to pass all of the tests.

In addition to their dependability in operation, these units' other benefits include their inexpensive price, low maintenance needs, quick installation time, and small footprint on the ground. So, to ensure the safety and dependability of the transformer for the clients, a standard certification is essential on a 1000 kVA transformer nameplate.

Ratings: UL Listed

Certifications: ANSI/IEEE, CSA, AS, and IEC

As per IS: 2026 all the routine tests carried out

You may enjoy: Ultimate Guide To Transformer Sizes and Ratings

How Much Does It Cost To Install A 1000 kVA Transformer?

The expense of installing a 1000 kVA transformer varies widely. The price tag will differ dependent on the specific model of transformer and the needed power rating. For small voltages, it may be as low as $350. As for medium voltages like 1000 kVA and 1200 kVA and 1250 kVA transformers, they can go for as much as $1500. The installation of a transformer might take a few hours. Another factor to think about is how much it will cost to ship products to their destination. 

Get it now: Step-by-Step Guideline On Installing A Transformer

What are Other Factors To Consider Upon Installation of A 1000 kVA Transformer?

As well as that, costs are often determined on a per-Kilovolt-Ampere (kVA) basis for various categories of transformers. There will also be additional fees if a large transformer needs to be sent to your home. The age of a transformer may also play a role in its value. The most up-to-date models typically last for 30 years. 

Some older models may be able to handle more power than they were designed for, though. We must also consider the weather. The effectiveness of the power transformer to dissipate heat might be usually compromised by excessive humidity and temperature.

What Exactly is a 1250 kVA Transformer?

A 1250 kVA transformer is a unit that can serve as a high voltage switchgear and low-voltage power distribution device. Because 81000 kw = 1250 kVA, the maximum power the transformer can take is 1000 kW. A remarkable level of reliability and efficiency may be highly maintained by a 1250 kVA transformer even while it is working with little loads.

This 1250 kVA three-phase transformer operates on a main voltage of 450 V Delta. Also, a 450 V Delta voltage can be primarily used. The core of each of these units is generally made using smart engineering and cold-rolled silicon steel laminations.

What Are The 1250 kVA Transformer Specifications?

Phase: Three Phase

Frequency: 60 Hz

kVA: 1250

Primary Volts: 450 V 

Secondary Volts: 450 V

Material: Aluminum

Insulation: 220 deg C

Temperature Rising: 150 C

Seismic: Yes

Sound Level: Meets NEMA ST-20 Standards

Enclosure Material: NEMA Type 3R Heavy Duty Ventilated

Dimensions: 81.00"H x 66.00"W x 61.00"D

Weight: 6000 lb Intl: 1-214-225-3186

Mounting: Floor Mount

Features

A 1250 kVA transformer has an aluminum winding material that has been meticulously cut may improve transformer efficiency.  Moreover, a 1250 kVA transformer will not have any flaws that reduce its effectiveness due to strict production standards.

Each core is practically sealed to keep out moisture and electrically balanced to lessen axial strains in the case of a short circuit. A 1250 kVA transformer helps in environmental sustainability and decreases utility expenditures for building owners.  More efficient transformers not only have a longer lifespan but also save their owners money in the long run on both the cost of energy and the cost of maintenance.

Applications

To reduce the risk of electric shock, a 1250 kVA transformer was practically developed. One possible use for a 1250 kVA transformer is to divert electricity between two different circuits and eliminate electrical noise in sensitive equipment.  A 1250 kVA transformer provides this security net by physically isolating the powered device from the power source. 

At the same time, a 1250 kVA transformer provides electrical insulation between the primary and secondary power supplies.

How Much Is The Standard 1250 kVA Transformer Price?

The price of a 1250 kVA transformer can be mainly purchased for a price that ranges from $890 to $6500.

Having said that, some suppliers will only sell it to you at a price that ranges anywhere between $1,000 and $10,000 for a step-down 1250 kVA transformer.

In the same sense, the cost of a transformer with a 1250 kVA rating might range anywhere from $13300 to $33600. This falls for oil-immersed three-phase transformers.

How Much Is A 1250 kVA Transformer Price At Daelim?

Nonetheless, Daelim offers initial purchases of each set of 1250 kVA transformers for between $8,800 and $19,800.00.

Their goal is to provide high-quality 1250 kVA transformer products that may be put to use in the mining, industrial, and renewable energy-generating industries.

How Much Is The Standard 1200 kVA Transformer Price?

The typical 1200 kVA transformer price may usually be acquired for a price as low as $5800. This is the most common pricing point.

Having said that, some vendors will offer it to you for a price that is anywhere from $15,000 to $20,000 for a 1250 kVA transformer.

For some of the high quality brands, a 1200 kVA transformer price might range anywhere from $21,000 to $28,000. 

Transformers Solutions for Industrial and Commercial Buildings

How to Get a Better Return on Your Investment in 1000 kVA and 1250 kVA Transformers?

Power companies invest much in distribution transformers. You may easily choose the most cost-effective transformer by comparing their prices.

Buying the cheapest transformer might save money in the short term, but it could end up costing more in the long run. Find Out How Much A Transformer Costs. The best way to choose a cost-effective transformer is to have a thorough understanding of its total maintenance costs. 

Transformer losses are factored into the original expenditure when determining the total cost of ownership (TCO). Whether you pay retail or use a loss evaluation method, choosing a 1000 kVA and 1250 kVA transformer with a good design and enough protection will extend its useful life.  This will save you from having to send out workers to repair or replace transformers before their time has come.

Determine the Life Cycle Costs

A transformer's cost depends on its dimensions, wattage, and quality. 

One of the most reliable ways to estimate the entire cost of a transformer is through its life-cycle cost. 

All expenses incurred during the lifetime of the transformer are included in this overall expense, not just the price tag upon purchase.

The average 1000 kVA transformer operates at 75% of its nameplate rating for around 2,760 hours per year.

Manufacturers must integrate operating and loss costs in the total life-cycle cost of an asset.

Daelim Can Provide You 1000 kVA Transformer with UL/cUL, CSA Certificate 

With Daelim, you can rest easy knowing that these transformers are significantly built to last and comply with a wide range of international requirements for efficiency. Choose Daelim when you think of purchasing a 1000 kVA transformer. 

Based on the large amount of transformer design experience of the Daelim team in North America, South America, and other markets, Daelim can quickly give you a comprehensive transformer technology solution.