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 power transmission, 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 line voltage, power, and energy, or to protect valuable equipment, motors, and transformers in the line when a fault occurs. Therefore, the capacity of a voltage transformer is very small, generally only a few volt-amperes or tens of volt-amperes, with a maximum not exceeding one thousand volt-amperes.

Hetronic electrical component composition

A diode is formed by a PN junction plus corresponding electrode leads and tube casing encapsulation. Using different doping processes, through diffusion, P-type semiconductor and N-type semiconductor are fabricated 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, when the diode conducts, the current direction flows 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 cores used for power, lighting, and internal installation of electrical equipment, copper cores are preferred; for large cross-section conductors, compacted stranded cores are advisable; conductors for fixed installation generally adopt Class 1 or Class 2 conductor structures. Insulation materials generally include four types: natural styrene-butadiene rubber, polyvinyl chloride (PVC), polyethylene, and nitrile-PVC compounds. Heat-resistant power cables use PVC rated for 90℃. Sheath materials generally include five types: PVC, cold-resistant PVC, ant-termite PVC, black polyethylene, and neoprene rubber. For extreme cold resistance and outdoor overhead laying, black polyethylene and neoprene sheathed power cables are suitable. In environments with external forces, corrosion, or humidity, rubber or plastic sheathed power cables can be used. Rubber and plastic flexible power cables use copper cores with a flexible structure, composed of multiple single wires twisted together; flexible cable conductors generally adopt Class 5 or Class 6 conductor structures. Insulation materials generally include natural styrene-butadiene rubber, PVC, or soft polyethylene plastic. The cabling lay ratio multiplier is small. The outer protective layer uses cotton yarn braiding to prevent overheating and damage to the insulation layer. To facilitate use and simplify production processes, a three-core balanced structure is adopted, which saves production man-hours and improves efficiency. Shielded insulated power cable cores may be tin-plated in certain applications; the surface coverage density of the shielding layer must comply with standards or meet user requirements; the shielding layer should be braided or wrapped with tinned copper wire; if an extruded sheath is added over the shield, the shield may use soft round copper wire braiding or wrapping. To prevent internal interference between cores or pairs, individual phase shielding structures for each core (or pair) can be produced. General rubber-sheathed rubber power cable cores use copper flexible wire bundles with a flexible structure; large cross-section surfaces may be paper-wrapped to improve bending performance. Insulation uses natural styrene-butadiene rubber, which has good aging properties. Outdoor product rubber uses neoprene or a neoprene-based mixed rubber formula. Mining rubber power cable cores use copper cores with a flexible structure, composed of multiple single wires twisted together: flexible cable conductors generally adopt Class 5 or Class 15 conductor structures. Insulation materials generally use rubber. The cabling lay ratio multiplier is small. Many products use metal braiding to equalize the electric field and improve insulation condition sensitivity display. There is a thick outer sheath, and color coding is applied underground in mines to help construction personnel understand the different voltage levels of the rubber power cables.

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, the two most basic parameters. Insertion loss, or connection loss, refers to the loss of effective optical power in the link caused by the introduction of the connector. Lower insertion loss is better, generally required to be no greater than 0.5dB. Return loss refers to the connector's ability to suppress optical power reflection in the link, with a typical value of no less than 25dB. For connectors in practical applications, the ferrule surface undergoes special polishing treatment, which can increase return loss, generally not lower than 45dB. 2. Interchangeability and repeatability: Fiber optic connectors are universal passive components. For the same type of fiber optic connector, they can generally be combined arbitrarily and reused multiple times, with the resulting additional loss generally within the range of 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 operate normally within the temperature range of -40oC to +70oC. ⑤ Mating cycles: Most fiber optic connectors in use can withstand more than l000 mating cycles.

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