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Views: 0 Author: Site Editor Publish Time: 2025-09-23 Origin: Site
As the world's need for energy keeps growing, having dependable and effective power distribution setups is more crucial than ever. A key player in this field is the substation—a place that changes voltage levels and directs electricity through networks. Among various kinds of substations, air insulated substations (AIS) stand out for being budget-friendly and easy to handle. This piece dives deep into AIS, covering its parts, planning needs, benefits, drawbacks, and how it stacks up against gas insulated substations (GIS).
Air insulated substations are a popular pick for handling medium to high-voltage power distribution tasks.
An air insulated substation, or AIS, is a kind of electrical hub where all the gear—like circuit breakers, disconnectors, transformers, and busbars—sits out in the open. The surrounding air acts as the barrier between live components and the ground. This simple setup makes AIS easy to build and look after.
In contrast to AIS, gas insulated substations rely on sulfur hexafluoride (SF6) gas as their main shield inside closed-off units. This design makes GIS setups much smaller in size. However, GIS tends to cost more and is trickier to manage due to its sealed structure and unique upkeep demands.
AIS is often seen in countryside or suburban spots where space isn’t a big issue. It’s also a go-to for large utility power grids, big industrial sites with open areas, and green energy projects like solar farms.
Getting to know the main parts of an AIS helps in understanding how it works and what it needs to stay in good shape.
Circuit breakers stop dangerous currents to keep gear safe during faults or overloads. Disconnect switches, on the other hand, cut off certain parts for fixes without messing up the whole system.
Busbars are metal strips that carry electricity around the substation. They link up different pieces like transformers and switchgear through overhead wires or sturdy conductors.
Instrument transformers lower high voltages or currents for measuring and safety tasks. They team up with relays to spot problems and kick off safety steps.
Today’s AIS setups often have digital tools to keep an eye on things like voltage, heat, breaker conditions, and other important details from a distance.
Creating a solid AIS means looking at several technical details based on the specific location.
AIS needs more ground space than GIS because of its open setup. Planners must arrange things carefully. They ensure safe gaps between active parts while making the best use of the area.
Since everything is out in the open, strong grounding, fences, lightning rods, and safety barriers are a must. These protect both people and equipment from harm.
One big plus of AIS is how easy it is to check and fix. Workers can handle repairs on single parts without shutting everything down.
Even though newer options like GIS are popular in city areas, AIS brings some great perks to the table.
AIS setups save money upfront since they don’t need gas-sealed units or pressurized systems. Plus, adding onto an existing AIS is pretty simple thanks to its flexible design.
With all parts out in the open and easy to reach, regular checks don’t need fancy tools or steps. This cuts down on downtime a lot.
The flexible design lets power companies add new sections or swap out old gear with little hassle. This is super helpful for expanding networks.
While AIS has plenty of strengths, it’s not always the best fit depending on the surroundings or project needs.
Compared to GIS, AIS takes up more room. This makes it tough to use in crowded city spots where land is scarce or costs a lot.
All the equipment in an AIS faces sun, rain, dust, wind, and snow directly. Sometimes, it even deals with harsh, rusty environments. Without solid protection, wear and tear happens faster.
Dirt from nearby plants or salty air near the coast can harm insulation over time. Regular cleaning is needed to keep things working well.
Choosing between AIS and GIS depends on things like available space, money limits, weather conditions, reliability needs, and plans for growth.
GIS takes up way less room thanks to its tight design. But it needs skilled workers to set up. On the flip side, AIS demands more land yet is simpler to install due to its open style.
When it comes to starting costs, AIS is usually cheaper. However, GIS might save money over time with less upkeep, especially in tough settings where rust or dirt could harm outdoor gear.
GIS often works better since its closed design keeps out dampness and dust. But AIS makes it easier to spot issues during breakdowns or regular checks because everything is visible.
Air insulated substations keep playing a vital role in many fields thanks to their adaptable uses.
Power companies use AIS at big grid stations where space isn’t tight. These setups help control voltage before power gets to homes and businesses.
Factories with lots of open land like AIS because it’s easy to change things up when production grows or shifts. This adaptability helps with future planning.
Solar farms often use ready-made transformer substations linked by outdoor switchgear. The pre-installed (European) transformer offers a handy mix of advanced tools, safety, and reliability.
For top-notch substation parts that work with both AIS and GIS setups, Guangdong Shengte Electric Co., Ltd. shines as a dependable choice. They provide full solutions made for today’s power grid needs.
SHENGTE builds a broad range of electrical gear designed for top performance, trustworthiness, and toughness. Their products fit everywhere, from home areas to factory zones.
Their transformer oil has low thickness, great heat movement, and strong insulation traits. This helps shield the core and windings, slows down wear on insulation stuff, and boosts the transformer’s lifespan.
The pre-installed (European) transformer boasts high automation levels.
It also offers a versatile setup.
Plus, it uses cutting-edge tech for safety and trust.
SHENGTE’s low-voltage Electrical Switchgear comes with perks like overload safety,
full error-prevention tools,strong splitting power,and steady heat balance.
Commitment to Quality, Innovation, and Customer Support
SHENGTE has a skilled research and development team with over a decade of know-how.
Their crew often trains to improve skills and serves clients with care and focus.
Air insulated substations are still a smart pick when there’s enough room for outdoor setups. Their straightforward design makes them cheaper and simpler to put in place. They also offer clear views during work. But in tight city spots or very dirty areas, gas-insulated options might be worth the higher starting price for better value over time. The final call depends on weighing space limits, budget caps, and long-term running goals.
Q1: What are the key differences between air insulated substations and gas insulated substations?
A: Air insulated substations use regular air to separate live parts, so they’re bigger but easier to manage. Gas insulated substations, however, use SF6 gas in sealed units, making them smaller but pricier and needing more know-how to handle.
Q2: Are air insulated substations good for city settings?
A: Usually not, since they need a lot of space, which is hard to find in busy urban zones. Yet, mixed setups like underground combined substations can work instead. They take up little land and blend well with the surroundings.
Q3: How often do air insulated substations need upkeep?
A: It depends on the weather and location, but they often need regular quick checks to stay in shape.
