Types of Distribution Transformer
Based on the application or requirement, these transformers are categorized into different types like single phase, three phases, underground, pad-mounted, pole-mounted transformers.
The uses of the distribution transformer include the following.
This transformer changes from high voltage electricity to low voltage electricity, used in homes & businesses.
The main function of this is to step down the voltage to provide isolation between two windings like primary & secondary
This transformer distributes the power to remote areas which are generated from the power plants
Generally, this transformer distributes the electrical energy to industries with less voltage under 33KV and 440volts to 220volts for domestic purposes.
FAQs
Which transformer is used in an electrical distribution system?
A step-down transformer is used in an electrical distribution system
2). What is the difference between distribution & power transformer?
The power transformer is used in transmission networks with high voltages whereas a distribution transformer is used in low voltage distribution networks.
3). What are the types of transformers?
The different types of transformers are step up, step down, power, distribution, instrument, potential, comprising current, single-phase, 3-phase, auto, etc.
4). Why transformers are rated in kVA?
Because they do not change the power factor (PF) of their output power.
5). What is the formula for kW to kVA?
Apparent power (kVA) = Actual power (kW) / power factor (pf)
Thus, this is all about an overview of the distribution transformer. It is used to distribute the electrical energy in industries with a voltage less than & 440v to 220v for domestic purposes. It works with less efficiency and they are small in size, easy to install, include low magnetic losses.
What is a Distribution Transformer?
Unlike a power transformer, distribution transformers serve for circulation purposes. Such equipment will, therefore, bring down (step down) the voltage and incidental level of a power transmission line to a predetermined scale. This predefined level is also referred to as the end-user safety level, either for domestic consumers or for industrial purposes.
Though similar in stature to a power transformer, a distribution transformer's voltage range varies between 33kV to 430V.
LZZB9-10S 10KV high voltage current transformer is a pillar type fully enclosed cast epoxy resin insulated current transformer, suitable for rated frequency of 50Hz, rated voltage of 10kV power system, power supply gas measurement and electrical protection. The following are some of its key technical parameters and features:
Product Overview:
LZZB9-10S current transformer is epoxy resin casting fully closed structure, with excellent insulation properties and moisture resistance.
LZZB9-10S current transformer is epoxy resin casting fully enclosed structure, with excellent insulation performance and moisture resistance.
Compact structure, small volume, light weight and easy surface cleaning.
Compact structure, small volume, light weight and easy surface cleaning.
The secondary junction is equipped with a junction box, and there are four mounting holes on the bottom plate for installation.
The product has 4 mounting holes on the bottom plate for installation.
Technical Parameters:
Rated primary current: from 5A to 1000A, depending on the model.
Rated primary current: range from 5A to 1000A, depending on the model.
Accuracy level and combination: e.g. 0.2/10P, 0.5/10P, etc.
Rated secondary current: usually 5A to 1000A, depending on the model.
Rated secondary current: usually 5A or 1A.
Rated output: depending on the accuracy level
Rated output: output power varies according to the accuracy level.
Rated output: output power varies according to the accuracy level.
Rated short-time thermal current: e.g. 90I1n, 225I1n, etc., depending on the model.
Rated dynamic stabilizing current
Rated dynamic stabilizing current: e.g. 200I1n, 225I1n, etc., depending on the model.
Insulation level: 12/42/75
Insulation level: 12/42/75kV.
Insulation level: 12/42/75kV
Load power factor: COSΦ=0.8 (lagging Lag)
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Installation and use precautions:
The transformer arrives at the use of units need to check the packing box should be accompanied by packing list, product certification, instruction manual and factory certificate of conformity.
The transformer should be packed with a packing list, product certificate, instruction manual and factory certificate of conformity.
Before using the transformer, the grounding bolt should be properly grounded.
The grounding bolt should be properly grounded before the transformer is used.
During operation, the secondary winding must be reliably connected to the load, and the secondary winding must be shorted to the secondary outlet terminal to ensure product performance and personal equipment safety.
The secondary winding must be connected to the load reliably during operation.
Shape and installation dimensions: the specific shape and installation dimensions of the information can be referred to the product specifications of the shape and installation dimensions of the diagram.
Installation Dimensions
With its miniaturization, stability and reliability, this current transformer is especially suitable for 10kV miniaturized switchgear, and can be customized according to user requirements.
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