HUMMELAG electrical components German HUMMELAG models HUMMELAG prices

HUMMELAG electrical components are tools that can accurately determine and measure temperature, divided into pointer thermometers and digital thermometers. Depending on the temperature-sensing substance used and the temperature measurement range, there are kerosene thermometers, alcohol thermometers, mercury thermometers, gas thermometers, resistance thermometers, thermocouple thermometers, radiation thermometers and optical pyrometers, bimetallic thermometers, etc. Digital thermometers can accurately determine and measure temperature, displaying it numerically rather than with a pointer or mercury. Hence they are called digital thermometers or digital temperature gauges.

Use of HUMMELAG electrical components

1, apply moderate force when tightening terminal connections to prevent stripping the threads of bolts and nuts due to excessive force; promptly replace any bolts or nuts with stripped threads, and strictly prohibit makeshift operations. 2, when using a screwdriver to tighten or loosen screws, you must press the screwdriver firmly against the screw head before tightening or loosening to prevent slippage that could damage the screw and make disassembly difficult, especially for common miniature circuit breakers in distribution boxes. 3, if you encounter bolts or nuts that are difficult to remove, do not act rashly to avoid deformation that would make removal even harder; instead, tap them appropriately or apply a screw loosening agent or dilute hydrochloric acid, then attempt removal after a short wait. 4, do not use pliers to tighten or loosen bolts and nuts to prevent damage; when using an adjustable wrench, adjust the jaw opening properly to avoid damaging or deforming the bolts and nuts, which would make disassembly difficult. 5, each terminal block allows a maximum of two wires of the same type and specification to be connected. 6, for terminal blocks prone to loosening or poor contact, wire ends must be secured in a "U" shape on the terminal block to increase contact area and prevent loosening. 7, when connecting wire ends or cable lugs to each other, it is strictly prohibited to install non-copper washers or washers with poor conductivity in between. 8, when connecting wire ends, the contact surfaces must be smooth and free of oxidation; when connecting cable lugs or copper busbars, apply conductive paste to the cleaned contact surfaces before tightening. 9, when connecting temporary wiring, single-strand flexible wires should have their ends folded once before being connected to the lower terminals of the miniature circuit breaker; single-core solid wires should be connected to the lower terminals of the miniature circuit breaker in a "U" shape. 10, for high-voltage motor wiring, no washers with poor conductivity, such as galvanized nuts, flat washers, or spring washers, are allowed between the motor output leads and the cables connecting to the motor. 16, when wrapping cables or other equipment requiring insulation protection with insulating tape, the insulation layer should be wrapped from one end to the other with a higher overlap ratio, making at least one round trip.

Composition of HUMMELAG electrical components

Transformer components include the core assembly (core, windings, insulation, leads), transformer oil, tank and cooling system, voltage regulation device, protective devices (breather, pressure relief vent, gas relay, oil conservator and temperature measurement device, etc.), and bushings. Specific composition and functions: (1) The core is the main magnetic circuit part of the transformer. It is usually made by stacking hot-rolled or cold-rolled silicon steel sheets with high silicon content and coated with insulating varnish. The core is divided into core columns and yokes; the core columns are fitted with windings, and the yokes complete the magnetic circuit. (2) The windings are the electrical circuit part of the transformer, made by winding double-insulated flat wire or enamel-coated round wire. The basic principle of a transformer is electromagnetic induction. Taking a single-phase two-winding transformer as an example to explain its basic working principle: when voltage is applied to the primary winding, current flows, generating alternating magnetic flux in the core. This flux is called the main flux, which induces electromotive force in the windings on both sides, ultimately driving the transformer's control device.

Principle of HUMMELAG electrical components

The working principle of a discharge tube is gas gap discharge i. When a certain voltage is applied between the two electrodes of the discharge tube, a non-uniform electric field is generated between the electrodes. Under the influence of this electric field, the gas inside the tube begins to ionize. When the external voltage increases to the point where the field strength between the electrodes exceeds the dielectric strength of the gas, the gap between the electrodes breaks down and discharges, transitioning from an insulating state to a conductive state. After conduction, the voltage between the two electrodes of the discharge tube is maintained at the residual voltage level determined by the discharge arc channel. This residual voltage is generally very low, thereby protecting electronic equipment connected in parallel with the discharge tube from overvoltage damage.

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