Home Categories Send inquiry

News

High voltage load switch classification:

The load switch is a switching device between the circuit breaker and the isolation switch. It has simple arc extinguishing equipment, which can block extra load current and certain overload current, but cannot block short-circuit current. The load switch can switch on and off the load current, e... Read More

CHARACTERISTICS OF OIL-IMPREGNATED PAPER INSULATED POWER CABLES

Power cables are used to transmit and distribute high-power electrical energy. According to different insulating materials, they can be divided into oil-impregnated paper-insulated power cables, rubber-insulated power cables and PVC-insulated power cables. The most widely used in engineering is t... Read More

WHAT ARE THE ADVANTAGES OF EUROPEAN TERMINAL BLOCKS?

Fundamentals In the application of all terminal blocks, European-style terminal blocks have application advantages. The key is that they not only have high airtightness during the entire process of use, but also have a high guarantee for the safety factor, but Compared with other terminal blocks,... Read More

THE TYPES OF LOAD BREAK SWITCHES

The high-voltage load switch is used to break the load current (including regular overload current) under operation, and has a certain ability to adjust the photosynthetic short-circuit current and thermal stability. It is often used together with fuses in the power system. The load switch is use... Read More

WHAT IS A FUSE? THE ROLE OF THE FUSE?

Fuse is also called fuse, melt. The residential total fuse is installed after the electric energy meter, and the porcelain plug-in fuse is generally used. Now as the total protection of the house, circuit breakers are usually used instead of fuses. Urban and rural individual workshops, old urban ... Read More

INTRODUCTION OF HIGH VOLTAGE FUSE

High-voltage fuses are generally used in small-capacity power grids with a voltage lower than 35kV. When an overload or short circuit occurs in the system, the melt is blown due to overheating, thereby cutting off the line and protecting the power grid and electrical equipment. Its working princi... Read More

WHAT ARE THE FUNCTIONS OF HIGH VOLTAGE LOAD SWITCH?

The high-voltage load switch is a combined high-voltage electrical appliance, which consists of an isolating switch, a fuse, a thermal relay, a shunt release and an arc extinguishing device. The high-voltage load switch has a simple arc extinguishing device, which can only be used to make and bre... Read More

CLASSIFICATION OF HIGH VOLTAGE SWITCHGEAR

1.According to the circuit breaker installation method (1) Removable type or handcart type (represented by Y) It means that the main electrical components (such as circuit breakers) in the cabinet are installed on the drawable handcart. Because the handcart cabinet has good interchangeability, it... Read More

HIGH VOLTAGE SWITCHGEAR

Five defenses of high voltage switchgear 1. After the vacuum circuit breaker trolley in the high-voltage switch cabinet is closed at the test position, the trolley circuit breaker cannot enter the working position. (to prevent closing with load) 2. When the grounding knife in the high-voltage swi... Read More

OIL IMMERSED TRANSFORMER

Product Description For oil-immersed transformers of 1000kVA and above, outdoor thermometer-type signals should be installed, and then long-distance signals. Oil-immersed transformers of 800kVA and above should be equipped with gas relays and pressure protection devices. Oil-immersed transformers... Read More

CAUSE OF CABLE FIRE AND EXPLOSION

Cause of cable fire and explosion 1. The cable head burns Because the surface of the cable head is damp and dirty, the ceramic sleeve of the cable head is broken and the distance between the lead wires is too small, which leads to flashover and fire, causing the surface insulation of the cable he... Read More

FACTORS IN THE SELECTION OF HEAT SHRINKABLE TUBES?

Nominal diameter of heat shrinkable tube: The key of the heat shrink tube is to be used as a preventive product for the cable. The cross section of the heat shrinkable tube is a cylindrical tube shape, so the nominal diameter is the size of the inner diameter of the wall thickness. This main para... Read More
123456 Next > >> Page 1 / 15