Products

surge protection Arrester lightning protector Surge Arrester

Zinc oxide lightning arrester is a lightning arrester with good protective performance. By utilizing the excellent nonlinear volt ampere characteristics of zinc oxide, the current flowing through the lightning arrester at normal operating voltage is minimized (microampere or milliampere level); When overvoltage is applied, the resistance drops sharply, releasing the energy of the voltage and achieving the protective effect. The difference between this type of lightning arrester and traditional lightning arresters is that it does not have a discharge gap and utilizes the nonlinear characteristics of zinc oxide to perform leakage and disconnection.

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Air Circuit Breaker Moulded Case Circuit Breaker MCCB

Air switch, also known as air circuit breaker, is a type of circuit breaker. It is a switch that automatically disconnects whenever the current in the circuit exceeds the rated current. Air switch is a very important electrical appliance in low-voltage distribution networks and power drive systems, which integrates control and multiple protection functions. In addition to completing contact and disconnection circuits, it can also protect circuits or electrical equipment from short circuits, severe overloads, and undervoltages, and can also be used to start motors infrequently.

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European Box Transformer Oil immersed transformer

Overview:
Widely used in urban power grid transformation, residential quarters, high-rise buildings, industrial and mining, hotels, shopping malls, airports, railways, oil fields, wharves, highways and temporary and temporary power facilities and other indoor and outdoor places.

The distribution transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings. It reduces the 10 (6) kV or 35kV network voltage to the 230/400V bus voltage used by users. This type of product is suitable for AC 50 (60) Hz, three-phase maximum rated capacity of 2500kVA (single-phase maximum rated capacity of 833kVA, generally not recommended to use single-phase transformers), can be used indoors (outdoors), can be installed on poles when the capacity is 315kVA or below, the ambient temperature is not higher than 40 ℃, not lower than -25 ℃, the highest daily average temperature is 30 ℃, the highest annual average temperature is 20 ℃, the relative humidity does not exceed 90% (ambient temperature is 25 ℃), and the altitude does not exceed 1000m. If it does not meet the above usage conditions, appropriate quota adjustments should be made in accordance with the relevant provisions of GB6450-86.

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High Voltage Drop out Fuse Cutout

Drop out fuses are suitable for power systems with a frequency of 50Hz and a rated voltage of 35KV and below, installed on the high voltage side of distribution transformers or on the main lines of distribution. The main functions include areas with low requirements for protection performance, which can be used in conjunction with isolation switches to replace automatic air switches; It can also be used in conjunction with load switches to replace expensive circuit breakers. It also has short-circuit protection, overload and isolation circuits.

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high voltage insulator post insulator

Composite insulator
Also known as composite insulators. The insulator consists of a glass fiber resin core rod (or core tube) and an organic material sheath and umbrella skirt. It is characterized by small size, light weight, high tensile strength and excellent pollution flashover resistance, but its anti-aging ability is inferior to that of porcelain and glass insulators.
Composite insulators include: rod-shaped suspension insulators, insulation crossarms, post insulators, and hollow insulators (i.e. composite sleeves). Composite sleeves can replace ceramic sleeves used in various power equipment, such as transformers, lightning arresters, circuit breakers, capacitive sleeves, and cable terminations. Compared with porcelain sleeves, it not only has the advantages of high mechanical strength, light weight, and small dimensional tolerances, but also avoids damage caused by bursting.

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Powerful manufacturers directly sell high-voltage fuses

High voltage current limiting fuse
Equipment used to protect against overload or short circuit of power equipment
High voltage current limiting fuse is suitable for AC 50HZ, rated voltage 3 In the 6-12KV system, it can also be used in conjunction with other electrical appliances (such as switches, contactors, etc.) as overload or short circuit protection for power equipment such as motors, transformers, capacitors, etc.

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Dry type combined voltage current transformer 35KV

Overview This type of voltage and current combined transformer (measurement box) is used for three-phase lines with AC 50Hz and rated voltage of 20KV, and is used for voltage, current, electric energy measurement and relay protection. It is suitable for outdoor substations in urban power grids and rural power grids, and can also be used in various transformer substations in industrial and mining enterprises. The combined transformer is equipped with active and reactive energy meters, which is...

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Oil-Immersed Combined Transformer

Overview JLS type combined transformer (three-phase outdoor oil-immersed high-voltage power metering box) consists of two voltage transformers and two current transformers (referred to as two elements). It is an oil-immersed outdoor type (can be used indoors). Mainly used for high voltage power measurement of 35kV, 50Hz power grid. It is installed on the high voltage side of the power transformer. There are two three-phase active energy meters and two reactive energy meters in the instrument ...

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vacuum circuit breaker VBC 12kv

VS1 sealed high-voltage vacuum circuit breaker is an important equipment used in high-voltage power systems. It has reliable circuit breaking and isolation functions and can effectively protect the safety of power equipment and personnel. The following is the product content of VS1 solid-mounted high-voltage vacuum circuit breaker: 1. High reliability: VS1 sealed high-voltage vacuum circuit breaker uses a vacuum arc extinguishing chamber, which can effectively isolate and disconnect the fa...

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current transformer lzzbj9-10 11kv dry type

LZZBJ9 current transformer is the latest high-performance power measurement equipment launched by Wenzhou Tianli Co., Ltd. This current transformer adopts advanced digital technology and precision manufacturing technology, has the characteristics of high precision, high stability and high reliability, and is suitable for current measurement and protection control in power systems. LZZBJ9 current transformer has a wide operating frequency range and can meet the needs of different power syst...

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Manufacturer of high-voltage current limiting fuse links

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High voltage lightning arrester lightning arrester price list

High-voltage lightning arrester is an important device used to protect power system equipment from lightning strikes and overvoltage damage. The latest high-voltage arrester developed by Zhejiang Tianli uses advanced zinc oxide varistor technology and has the following outstanding features: 1. High voltage resistance: The new generation of high-voltage arresters adopt advanced materials and processes, giving them higher voltage resistance under high-voltage conditions. This mea...

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