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Better to know to a 100 kva substation

2024-04-02

A 100 kva substation plays an important role in power system, which could transformer relative high voltage power to a suitable level for distribution system. Meanwhile, a 100 kva compact substation could support a reliable power supply for various place and industries, such as a hospital, residential area, and small business company.

Conso electrical science and technology co., ltd has been a professional manufacturer to make 100 kva compact substations since 2006. In Conso Electrical, a 100 kva compact substation is designed as the single line drawing and the technical requirement document from design institute. It is because the working environment is not all same among terminal users.

 For example, a 100 kva compact substation will equip an oil immersed transformer for public lighting system on street, as the relatively low material costs. However, the 100 kva compact substation also work for the lighting system, but it is in a railway station. The terminal user probably prefer to use a cast resin dry type transformer in the 100 kva compact substation, as the excellent fire resistance.  

The table of the content

1. What is the difference between a 100 kva substation and a 100 kva transformer?

2. What is the main components in a 100 kva substation?

3. What is the application of a 100 kva substation?

4. How to maintain a 100 kva substation?

5. What is the loss of a 100 kva substation?

6. What is the costs of a 100 kva substation?

7. A 100 kva substation is for sale.

What is the difference between a 100 kva substation and a 100 kva transformer?

A 100 kva distribution transformer is an electrical facilities to switch the primary voltage to a suitable level for distribution system. However, it needs controlling and protecting units to cooperate, which means it is dangerous and inappropriate to connect power from a 100 kva distribution transformer directly to the terminal users.

A 100 kva compact substation is an excellent solution to miniaturize power grid. It combines a 100 kva distribution transformer with controlling, protecting and metering units, which terminal users could get the stable power directly from circuit breakers in output panel of secondary voltage side. It benefits from the compact designing,a 100 kva substation is convenient to install deep into the load center areas and densely populated areas.

 

What is the main components in a 100 kva substation?

One of the main purpose of a 100 kva compact substation is to support a stable and reliable power supply to terminal users. Besides a 100 kva distribution transformer, the controlling and the protecting unit are essential components. Meanwhile, it is necessary for power grid company to meter active and reactive power to supply a better service to users. Thus, controlling protecting and metering units, and a distribution transformer are the main components in a 100 kva compact substation.

 

1. Controlling units: it uses to distribute electricity and cut off power supply when an abnormality occurs or maintenance is needed. It might includes loading breaker switch,circuit breaker, isolating switch, and earthing switch,etc.

2. Protecting units: it uses to deliver right electrical single to controlling units in time through protection relays, surge protectors, and lighting arresters, etc. Normally, It contains over load protection, over current protection, over/under voltage protection, earthing protection, and temperature protection, etc.

3. Metering units: it uses to measure, monitor and record electrical data in power system. The main components contain current transformers, potential transformers and digital meters.

4. In additional, to enhance the quality of power system, the local power gird company might require to install a reactive power compensation unit into a 100 kva compact substations.

What is the application of a 100 kva substation?

A 100 kva compact substation can supply electricity to manufacturing company, household, and office building, such as to drive manufacturing equipment, air conditioner, and lifting system.

However, since the 100 kva is a small capacity, a 100 kva substation widely uses on public lighting system and temporary electricity use, such as open air performance site, and construction site.

 

How to maintain a 100 kva substation?

1. Regularly check out the outer covering to ensure no Breakage and oil leakage occurs;

2. Regularly measure electrical parameters such as the voltage, current, and power factor;

3. Regularly check the cooling system of the 100 kva substation. Clean up external surfaces and vents to maintain the heat dissipation and ventilation performance;

4. Regularly test the insulated material to prevent problems such as insulation aging and leakage;

5. Regularly check connectors, and Strengthen lightning protection and moisture-proof measures;

6. Regularly record the operation data and maintenance records ofthe 100 kva compact substation, and report abnormal situations and faults in time to facilitate timely processing and troubleshooting.

What is the loss of a 100 kva substation?

Different countries will adopt varying loss standards, reflecting diverse regulatory frameworks and technical specifications tailored to their respective electrical systems. The following table shows loss standard of a three phase 11/0.4 kv 100 kva compact substation from S9 to S22

Loss standard

No load loss (W)

Load loss (W)

No load current (%)

Impedance (%)

S9

290

1580/1500

1.8

0.88

4.0

S11

200

1580/1500

1.8

0.88

4.0

S13

150

1580/1500

1.8

0.88

4.0

S14

150

1265/1200

1.8

0.88

4.0

S20

135

1265/1200

1.8

0.88

4.0

S22

120

1140/1080

1.8

0.88

4.0

Tips:

1. the left side value in the load loss fits to the vector group of Dyn11, and the right side value fit to Yyn0.

2. The number of 1.8 in no load current is the standard value , and the 0.88 on right side is the advanced value.

What is the costs of a 100 kva substation?

In Conso Electrical, it is the company obligation to design a 100 kva compact substation to fit the working environment and unique demand of terminal users. The manufacturing costs of a 100 kva compact substation will be impact by the current price of raw materials, branded components, and technical requirements. Normally, a three phase 10/0.4 kv 100 kva compact substation will cost about $10500 to $13500.

A 100 kva substation is for sale.

Conso Electrical Science and Technology Co., Ltd has a professional team to design and produce 100 kva compact substation. The company produce each 100 kva compact substation as the standard ofIEC 62271 and IEC 60076. To bring a smooth user experience, each finished 100 kva compact substation will suffer a series factory test in Conso Electrical.Ever more, some non-destructive testing will taking more serious performance to oversea users, such as oil leak test.

 In Conso Electrical, the engineer team has collected various solutions from cooperate with clients.Engineers has enough experience to optimize solution from design institute.The company aims to build a solid relationship with distributors and terminal users.

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