Low Voltage Arrester Overvoltage Limiterhelium Mass Spectrometer Leak DetectorComposite Jacket Metal Oxide Arrester

Low voltage arrester

1. Product overview
Metal oxide arrester (hereinafter referred to as arrester) is an over-voltage limiter. When over-voltage occurs, the voltage between the two terminals of the arrester does not exceed the specified value, so that electrical equipment is protected from over-voltage damage; after the over-voltage effect, it can Return the system to normal status quickly.

2. Structural characteristics

Metal oxide arresters are mainly composed of zinc oxide resistors with excellent volt-ampere characteristics, upper and lower electrodes and jackets.

Composite jacket arresters have the following characteristics:

1) Fundamentally solve the sealing problem;

2) The composite jacket is weather-aging resistant, has a wide operating temperature range, is highly hydrophobic and has recovery and migration characteristics. It can operate normally in harsh climates such as high altitudes and heavy pollution, and can prevent vicious explosion accidents;

3) The external metal parts are made of high-strength alloy aluminum and other anti-corrosion materials, so the pre-test period can be extended or no maintenance is required during the service life;

4) Small size and light weight.

Electric porcelain jacket arresters have the following characteristics:

1) The arrester adopts two structures: normal pressure and micro-positive pressure, and is filled with high-purity dry nitrogen or SF6 gas inside. The slight positive pressure makes the internal gas pressure of the arrester slightly greater than the atmospheric pressure, making it difficult for external moist gases to enter its interior, which greatly improves the moisture resistance of the arrester;

2) The main components of the arrester are sealed and leak-detected using a helium mass spectrometer leak detector;

3) The arrester is equipped with a pressure release device. When the arrester operates under abnormal circumstances and the internal air pressure rises, the internal pressure can be released in time to avoid secondary accidents.

3. Normal operating conditions

1) The ambient temperature is not higher than +40℃ and not lower than -40℃;

2) Sunlight radiation;

Note: The influence of the maximum solar irradiation (1.1kW/m2) has been considered by preheating the sample during the type test. If there are other heat sources near the arrester, the use of the arrester needs to be negotiated by the supplier and the buyer.

3) The altitude does not exceed 1000m;

4) The frequency of the power supply is not less than 48Hz and not more than 62Hz;

5) The power frequency voltage applied between the terminals of the arrester for a long time should not exceed the continuous operating voltage of the arrester;

6) Areas with earthquake intensity of 7 degrees and below;

7) The maximum wind speed does not exceed 35m/s.

4. Product model description

Example: YH5WS-17/50ZG

1: Product type:

Y: Metal oxide arrester

YH: Composite jacket metal oxide arrester

2: Number:

Nominal discharge current value, unit is kA.

3: Structural features:

W: No gap; C: Series gap; B: Parallel gap

4: Place of use:

S: Distribution type; Z: Power station type; T: Electrified railway type; X: Line type; R: Protection capacitor bank; D: Generator, motor;

(For low voltage, rotating motors, transformer neutral points, and motor neutral points are generally not marked)

5: Design serial number:

6: Characteristic numbers:

Above the slash is the rated voltage of the arrester, in kV; below the slash is the residual voltage under the nominal discharge current of the arrester, in kV.

7: Additional features:

G: plateau type; W: anti-fouling type; K: earthquake-resistant type; FT: type with disconnector; X: hanging type; ZG: detachable type.

Dongguan Linkun Electronic Technology Co., Ltd. (Feiyang Electronics Factory) was established in 2004 and has developed into a large-scale professional development and production of a full range of varistors (Varistors), thermistors, PTC, NTC series, wave It is a protective component manufacturer of surge protectors and lightning protection products, ranking in the forefront of the same industry. PTC series has unique advantages in degaussing and current limiting heating, and NTC is particularly cost-effective in high-power resistors.

The voltage sensitive components produced and sold by the company include: general-purpose varistors, lightning protection varistors, high-load varistors, high-energy varistor silver sheets, and various lightning protection devices with independent intellectual property rights.

In order to adapt to the development of the market, the company has invested heavily in the construction of Linkun Electronics Production Base, which covers an area of nearly 3,500 square meters and a building area of 2,800 square meters. It has been fully put into production and operation; at the same time, the company has introduced German and other The country's high-tech fully automated production and manufacturing equipment and imported high-precision inspection and testing instruments have been fully put into production, and the production of products has achieved automation and scale.

Since its inception, the company has taken scientific and technological innovation as the cornerstone of its development, and strives to improve its research and development and technological innovation capabilities. Our company has a group of high-tech talents headed by national experts, specializing in product research and development, product quality control, sales and service technical support and other work. At present, the product variety of Feiyang company has doubled, providing excellent and reliable products and services for all walks of life.
The company implements the ISO9001:2000 quality management system……

The company's products are widely used in: household appliances, medical equipment, office equipment, communication equipment, mobile phone batteries, rechargeable batteries, electronic desk calendars, electronic thermometers and temperature controllers, covering military communications, IT, automobiles, consumer electronics and other fields.
The company warmly welcomes friends from all walks of life at home and abroad to visit and purchase.
Business philosophy: rational use of resources, customer satisfaction, high-quality products, continuous improvement.

The company's products are widely used in: household appliances, medical equipment, office equipment, communication equipment, mobile phone batteries, rechargeable batteries, electronic desk calendars, electronic thermometers and temperature controllers, covering military communications, IT, automobiles, consumer electronics and other fields.
The company warmly welcomes friends from all walks of life at home and abroad to visit and purchase.

Business philosophy:

rational use of resources, customer satisfaction, high-quality products, continuous improvement.