Hetronic electrical components Germany Hetronic model Hetronic price

Hetronic electrical components are instruments used to transform voltage. However, the purpose of a transformer's voltage transformation is to facilitate the transmission of electrical energy, so its capacity is large, generally calculated in kilovolt-amperes or megavolt-amperes; whereas the purpose of a voltage transformer's voltage transformation is mainly to supply power to measuring instruments and relay protection devices, to measure the voltage, power and electrical energy of the line, or to protect valuable equipment, motors and transformers in the line when a fault occurs in the line, so the capacity of the voltage transformer is very small, generally only a few volt-amperes or tens of volt-amperes, and the maximum does not exceed one thousand volt-amperes.

Hetronic electrical component composition

A diode is formed by a PN junction plus corresponding electrode leads and tube shell encapsulation. Using different doping processes, through diffusion, P-type semiconductor and N-type semiconductor are made on the same semiconductor (usually silicon or germanium) substrate, forming a space charge region at their interface called the PN junction. The electrode drawn from the P region is called the anode, and the electrode drawn from the N region is called the cathode. Due to the unidirectional conductivity of the PN junction, the current direction when the diode is conducting is from the anode through the interior of the tube to the cathode. A diode has two electrodes; the electrode drawn from the P region is the positive pole, also called the anode; the electrode drawn from the N region is the negative pole, also called the cathode.

Hetronic electrical component structure

For rubber and plastic power cable conductors used for power, lighting and internal installation of electrical equipment, copper cores are preferred; for large cross-section wires, compacted wire cores are advisable; conductors for fixed installation generally adopt Class 1 or Class 2 conductor structures. Insulation materials generally include natural styrene-butadiene rubber, polyvinyl chloride, polyethylene, and nitrile-polyvinyl chloride compounds; heat-resistant power cables use polyvinyl chloride with a temperature resistance of 90℃. Sheath materials generally include polyvinyl chloride, cold-resistant polyvinyl chloride, ant-termite polyvinyl chloride, black polyethylene, and neoprene rubber. For extreme cold resistance and outdoor overhead laying, black polyethylene and neoprene sheathed power cables are recommended. In environments with external forces, corrosion, humidity, etc., rubber or plastic sheathed power cables can be used. Rubber and plastic flexible power cables use copper cores, with a flexible structure composed of stranded single wires; flexible conductors generally adopt Class 5 or Class 6 conductor structures. Insulation materials generally include natural styrene-butadiene rubber, polyvinyl chloride, or soft polyethylene plastic. The cabling pitch multiple is small. The outer protective layer uses cotton yarn braiding to avoid overheating and damaging the insulation layer. To facilitate use and simplify the production process, a three-core balanced structure is adopted, which can save production man-hours and improve production efficiency. Shielded insulated power cable conductors are allowed to be tinned in certain occasions; the surface coverage density of the shielding layer should comply with standards or meet user requirements; the shielding layer should be braided or wound with tinned copper wires; if a sheath is extruded over the shield, the shield may use soft round copper wire braiding or winding. To prevent internal interference between wire cores or wire pairs, individual phase shielding structures for each wire core (or wire pair) can be produced. General rubber-sheathed rubber power cable conductors use stranded copper soft wires, with a flexible structure; large cross-section surfaces are allowed to be paper-wrapped to improve bending performance. Insulation uses natural styrene-butadiene rubber, which has good aging performance. The rubber for outdoor products uses neoprene or a neoprene-based mixed rubber formula. Mining rubber power cable conductors use copper cores, with a flexible structure composed of stranded single wires: flexible conductors generally adopt Class 5 or Class 15 conductor structures. Insulation materials generally use rubber. The cabling pitch multiple is small. Many products use metal braiding to uniform the electric field and improve the sensitivity display of insulation status. There is a thicker outer sheath, and color coding is performed underground in mines so that construction personnel understand the different voltage levels of the rubber power cables used.

Hetronic electrical component performance

The performance of fiber optic connectors includes optical performance, as well as interchangeability, repeatability, tensile strength, temperature range, and mating cycles. 1. Optical performance: The main requirements for the optical performance of fiber optic connectors are insertion loss and return loss, which are the two most basic parameters. Insertion loss, i.e., connection loss, refers to the loss of effective optical power in the link caused by the introduction of the connector. The smaller the insertion loss, the better; it is generally required to be no greater than 0.5dB. Return loss refers to the ability of the connector to suppress the reflection of optical power in the link, and its typical value should be no less than 25dB. For connectors in practical applications, the ferrule surface undergoes special polishing treatment, which can increase the return loss, generally not lower than 45dB. 2. Interchangeability and repeatability: Fiber optic connectors are universal passive devices. For the same type of fiber optic connector, they can generally be combined arbitrarily and reused multiple times, with the additional loss introduced thereby generally being less than 0.2dB. ③ Tensile strength: For finished fiber optic connectors, the tensile strength is generally required to be no less than 90N. ④ Temperature: Generally, fiber optic connectors must be able to operate normally in the temperature range of -40oC~+70oC. ⑤ Mating cycles: Most fiber optic connectors in use can withstand more than l000 mating cycles.

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