Types of relays in refrigerators

After the electric motor got the necessary momentum launcher coil must be switched off. For this purpose puskozaschitnoy relay that breaks the circuit when it reaches a certain temperature sensitive element. It may have two or three exits. In the first case - a phase 110 V - earth, and in the second case - Start winding - operating winding - land. Starting relay works for several schemes.

Option 1 - "Pills"

The basis of this work item is a material that expands when heated. Upon reaching a certain temperature within the "pill" contact opens and stays connected only coil. To maintain such a regime on the working coil used reactor, a heated element. In case of failure of the relay inside there is the sound of the spilled material.

2. Option - induction switch

The basis of the work of such a mechanism are electromagnets, in which at the core is started when the current passes through the coil o ... Read more »

Reliability - property of an object to keep in time within the established values ​​of the parameters characterizing the ability to perform the required functions in the set modes and conditions of use, maintenance, storage and transport [1].

Intuitively, the reliability of objects associated with the failures of inadmissibility. It is the understanding of grade in the "narrow" sense - object property to maintain a usable state for a certain time or a certain operating time. In other words, the reliability of the object lies in the absence of unforeseen harmful changes its quality in service and storage. Reliability is closely related to the various parties operating process. Reliability in the "broad" sense - comprehensive property, which depending on the target object and its operating conditions can include properties of reliability, durability, maintainability and retentivity as well as a certain combination of these properties.

To quantify th ... Read more »

Maintainability - object property, adaptability to maintain and restore a healthy state by maintenance and repair.

A system allowing repair in the course of its operation, called recoverable. Some systems in fulfilling their functions for reasons of technical or economic conducting repairs not allowed. An example of a non-recoverable for technical reasons, the system is. For economic reasons, not reproducible, such as ball bearings, since by virtue of their production processability new product is significantly less repair and replacement set of mechanical working operations. There are products such as aircraft tires or vanes of gas turbine engines, recovery of which is technically and economically feasible, but is forbidden safety regulations.

Any appliances that simply abound in modern apartments, is a complex electrical mechanism, whether it is a small coffee grinder or food processor serious. It is for this reason that over time, begin to appear failures in its work, wear different design elements. Also, the appearance of damage affects improper storage or operation. In the end, almost any device can fail at the most inopportune moment. That's just not necessary to be upset ahead of time, because most of the problems you can solve on their own, without even having recourse to the expertise required for their services is quite high fees.
To refuse the work of professional artists can not be only in two cases: the technique is under warranty or repair so serious that make it impossible with his own hands. In all other situations, you can safely repair of household appliances on their own, after analyzing the main reasons for their occurrence in certain equipment. For example, washing machines do not like very h ... Read more »