HV and LV Switchgear
ZELECT：Your Professional HV And LV Switchgear manufacturer!
Baoding Zhongyi Electric Corporation. Here in short referred to as "ZELECT", located in Baoding city, Hebei province, China. Founded in 2008, our company is one of the "high-tech enterprises", which produce and sell power transformer, high and low voltage switch-gear and prefabricated substations.
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Advanced Equipment
Professional Team
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24H Online Service
Your inquiry will be replied within 24 hours.We also provide customized service and the perfect power solution to meet your requirements.
advanced equipment
We have many very advanced and complete production equipment to ensure the excellent quality of our products
professional team
There are currently 260 employees, including 18 technicians who have been engaged in the research and development of transformer products for many years, and 8 high-quality corporate managers.
global shipping
Our sales network is divided to five main regions: America, Southeast Asia, West&South Asia, Europe&Africa, Russian Market.
A power surge is well known for wreaking havoc on your electrical infrastructure. Circuits are intended to handle a specific amount of electricity, and when that amount of current is exceeded, the wiring can overheat.This could cause damage to critical electrical components or possibly cause fires. Electrical overload is a threat to equipment linked to a power supply, and switchgears are meant to protect it. Switchgear refers to a wide range of switching devices that all serve the same purpose: controlling, safeguarding, and isolating power systems. This term could be broadened to encompass equipment that regulate and meter a power supply, as well as circuit breakers and other comparable technology.
This is an important component in modern power systems to safeguard devices from overcharge or short circuits. HV (high voltage) and LV (low voltage) are the two basic categories (low voltage). HV type is used to power motors and electrical equipment that operate on more than 1000 volts AC, whereas LV type is used to power electrical devices running on less than 1,000 volts AC.
Features of HV And LV Switchgear
Complete Reliability
With the continued trend of interconnection and the increasing capacity of generating stations, the need for reliable switchgear has become of paramount importance.
This is not surprising because it is added to the power system to improve reliability. When a fault occurs on any part of the power system, they must operate to isolate the faulty section from the remainder circuit.
Absolutely Certain Discrimination
When a fault occurs on any section of the power system, the switchgear must be able to discriminate between the faulty section and the healthy section.
It should isolate the faulty section from the system without affecting the healthy section. This will ensure continuity of supply.
Quick Operation
When a fault occurs on any part of the power system, the switchgear must operate quickly so that no damage is done to generators, transformers and other equipment by the short-circuit currents.
If the fault is not cleared quickly, it is likely to spread into healthy parts, thus endangering complete shut down of the system
Provision for Manual Control
Switchgear must have provision for manual control. In case the electrical (or electronics) control fails, the necessary operation can be carried out through manual control.
Use of a HV And LV Switchgear
The prime function of switchgear is similar to that of a switch. It is mainly used to carry, make, and break the flow of current between the source and the load.
The use of switchgear is important in various power electronics applications as it protects the connected devices from high magnitude current, typically known as the surge current. In absence of the switchgear, the device gets damaged. This causes service intrusion as the system containing the damaged device stops working.
Switchgear is primarily employed to safeguard and protect transformers, generators, and various other electrical circuits and devices from short circuits.
Switchgear is used to isolate the devices connected at the load side from the main power supply.
It is used to protect the transmission lines from being damaged, thereby improving the life span of the cables and minimizing the need for their frequent maintenance.
It is used to improve the availability of the system. This is because switchgear allows the system to have more than one source to feed the load.
The switchgear allows the user to have full control over the flow of current through the circuit under both normal and abnormal conditions by opening or closing the electrical circuits accordingly.
One of the main functions of switchgear is to detect the overload conditions and trip off immediately in case of an excessive flow of power to the load.
A switchgear helps in switching both capacities as well as inductive currents.
In the case of a short circuit, switchgear interrupts the flow of current and helps avoid property damage and accidents.
Application of HV And LV Switchgear?
Switchgears can be used in a variety of applications, including the following: Overloading and surge prevention are critical in industrial power distribution in factories and facilities. The switchgear aids in the organization and distribution of power in the industrial unit's machines.
Surge control voltage regulation is required in solar energy systems because it controls the electricity to flow from the main unit. Energy plants — Principal and sub-power transmission units with a variety of electrical interconnections that require protection. Residential power distribution – Switchgears can be found in housing developments or in locations where steel and metal-clad switchgear are used.
Electricity is a necessary aspect of life in general. As a result, electricity distribution must be done in a reliable and confidential manner. The installation of safety mechanisms and equipment at various distribution units and substations can help to maintain security levels.
Despite the fact that a variety of methods can assist in protecting electrical connections in both industrial and residential settings, switchgear is preferred due to its characteristics and purposes.
Maintenance of HV And LV Switchgear
HV and LV switchgear is an essential, yet potentially hazardous, element in the provision of power to your business and involves extensive levels of knowledge and expertise. Annual switchgear inspections and switchgear maintenance schedules can be performed on all types of HV and LV equipment, including HV pressure testing, primary and secondary injection, infrared thermographic surveys and insulating oil sample testing. A 24-hour call-out service, consultancy, technical advice and facilities management of HV rings, controls and associated LV equipment is required for the switchgear of power system. Other switchgear services include on-site investigation, emergency repair and site surveys.
The safety and reliability of electrical switchgear equipment installed in public buildings throughout the world is often overlooked with circuit breakers, for instance, providing the backbone of power distribution infrastructure. The replacement of digital solid state trip units designed to extend the life of power circuit breakers is very important for reliability of the power system.
Reliable performance is essential for your all your EHV, HV, MV and LV Switchgears installed in the power System. High Voltage preventive maintenance of switchgear is essential to help keep your electrical power operating without interruption in emergency situations.
On-site at facilities, High Voltage Switchgear preventive maintenance ensures the reliability and integrity of electrical equipment. High Voltage switchgear testing and repairs can save time and money. Don't defer or delay maintenance, before another failure occurs. I shall tell you a great secret my friends. Do not wait for the last judgment , it takes place every day.
In general, HV switchgear has a proven record of reliability and performance. Failures are rare but, where they occur, the results may be catastrophic. Tanks may rupture and, with oil-filled switchgear, this can result in burning oil and gas clouds, causing death or serious injury and major damage to plant and buildings in the vicinity. Failures of switchgear can also result in serious financial losses.
Retrofitting old oil insulated switchgear is a proven highly cost-effective and reliable process which once installed reduces HV maintenance and the overall operational costs of all switchgears by means of reducing shut down times and ultimately improving existing system reliability and operational safety.
Key Differences and Considerations between HV And LV Switchgear
Voltage Range:
The primary distinguishing factor between LV and HV switchgear is the voltage range they are designed to handle. LV switchgear operates at voltages below 1,000 volts, while HV switchgear is specifically engineered for systems that operate above 1,000 volts.
Applications:
LV switchgear finds its IDE AL applications in residential, commercial, and general industrial settings, where lower voltage systems are prevalent. In contrast, HV switchgear is indispensable in environments related to power generation, transmission, and heavy industry, where high voltage systems are the norm.
Components:
The components used in LV and HV switchgear are specifically engineered to match the voltage levels and power requirements of their respective systems. LV switchgear components are designed for efficient operation in low voltage circuits, while HV switchgear components are tailored to handle the challenges presented by high voltage applications.
Safety Regulations:
Both LV and HV switchgear must adhere to strict safety regulations and industry standards. These regulations define the design, testing, and operational requirements that ensure the safe and reliable operation of switchgear systems in their respective voltage ranges.
Our Factory
Our factory covers an area of 33,300 square meters, with a total construction area of 6,100 square meters. There are currently 260 employees, including 18 technicians who have been engaged in the research and development of transformer products for many years, and 8 high-quality corporate managers. With the expansion of production scale and the increase of product varieties, it has now developed into a high-tech innovative enterprise that annual production capacity of more than 1000MVA, integrating the design, production and sales of open-type dry-type transformers, epoxy resin cast dry-type transformers, amorphous alloy transformers, and special transformers.
Our Certificate
Our company has passed the ISO9001-2008 international standard quality management system certification. All performance indicators of the products have reached the relevant national standards and international standards.
The oil immersed power transformers and dry-type transformers have passed the Test Report of the National Supervision and Inspection Center for Energy-saving Product Quality; Complete sets of low voltage switch-gear (GGD2) (GCK) has passed the test of China Compulsion Certification (CCC) from the State Bureau of Quality and Technical Supervision for Electrical Products; Indoor AC draw-out type metal clad switch-gear KYN28A-12 / 1250-31.5, fixed AC metal-enclosed Ring unit XGN15-12 / 1250-31.5 and XGN15 metal-enclosed switch-gears have passed the test of the National Quality Supervision and Inspection center for High-voltage Electrical Appliances Product.
FAQ
Q: What is the importance of HV and LV switchgear?
Q: What does HV and LV switchgear do?
Q: What is the difference between a switchboard and switchgear?
Q: What is the HV and LV switchgear components?
Q: What are the essential differences between HV and LV switchgear?
Q: What is the purpose of HV switchgear?
Q: What is the preventive maintenance of LV switchgear?
Q: Why is higher voltage more efficient?
Q: How many types of switchgear are there?
Q: Why does switchgear need batteries?
Q: What are the problems with switchgear?
Q: What are the basic functions of LV switchgear?
Q: How do I choose a switchgear?
Q: Is switchgear maintenance required?
Q: What is the commissioning process for LV switchgear?
Q: How often should HV switchgear be tested?
Q: What are the tests on switchgear?
Q: What's inside a switch cabinet?
Q: What is the range of high voltage switchgear?
Q: Can you provide drawings and technical data?
Q: Have your products been exported?
Q: Can the products be manufactured by customer's requirement?
We're known as one of the most professional hv and lv switchgear manufacturers and suppliers in China. Please rest assured to buy high quality hv and lv switchgear for sale here from our factory. Good service and competitive price are available.
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