Tianyi switch - the characteristics and classification of load isolation switch

An overview of limit switches Limit switch is a kind of mechanical orientation and electronic control interface, the mechanical action into electrical signals, is suitable for industrial environment of a common electromechanical and electrical components, through the contact way to detect the object, the existence and so on. It is possible to control the device's ...

1. The current value of the air switch is too low, and the load power is greater than the rated power of the air switch. 2. The load joint is not firm, and the joint is not compressed. 3. If there is a short circuit in the line, check whether the electrical plug is dry. 4. The line is aging and leaking, resulting in both the live wire and the neutral line.

1. When overhauling electrical equipment, provide an electrical interval and a visible disconnection point to ensure the personal safety of maintenance personnel. 2. The disconnector can not be operated with load: it cannot be operated with rated load or large load, and it cannot be divided or combined with load current and short circuit current.

(1) Green (HG, GL) What it means: stands for Safety, Normal, Readiness (i.e., an indication under safe operating conditions or the readiness of a mechanical device to start). Function: It is often used to indicate the state of equipment ready to start, all auxiliary components are in a state of preparation for operation, and various parts ...

First, the characteristics are different 1. Limit switch: The limit switch has the characteristics of small size, multiple functions, high precision, adjustable limit, strong versatility and easy maintenance, installation and adjustment. 2. Proximity switch: The proximity switch has the characteristics of a limit switch, and at the same time has the sensing performance.

1. Check the key points: 1) Whether the voltage at point B is 310V. 2) Whether the 15V voltage is normal. 3) Whether the voltage at point C is greater than 14V. 4) Whether the SS terminal of (8) pin IC6 is higher than 10V, whether the SD terminal of pin (10) is lower than 0.6V, and whether there is a square wave transmission at pin 13 and pin 14 ...

Uses: X42 series limit switches can be widely used in various types of mechanical equipment, automatic assembly lines and other light and medium load occasions, can detect the object action state, such as presence and absence, movement position, end of stroke, etc. Overview: The switch is mainly composed of switch operating parts, ...

1. Change the reference current of the feedback module Regulating the reference current is the most basic way to regulate the output current of a switching power supply, and it can usually be achieved by rotating a potentiometer or toggling a switch. Changing the reference current allows the magnitude of the feedback current to be compared with it, so as to control the switch ...

LW42 series LW42 series cam switch and safety switch are another series of high-quality products announced by Shanghai Tianyi Electric Appliance Co., Ltd. to meet customer needs. Device function: personal safety is paramount, LW42 series cam switch and safety switch unique terminal plan ...

The meaning is different, the scope of application is different, and the role is different. Air opening C represents the current, and the D model represents the power. The scope of use is different. If it is a household electricity, the air switch of the C model is generally chosen. The role is different. Type C it is used for home lighting use, Type D is suitable for ...

Conversion conditions: The purpose of requiring dual power supplies is to complete the automatic and reliable conversion of dual power supplies under "specific" circumstances. This "specific condition" is the conversion premise of the dual power supply, or the conversion condition, which is the primary consideration for choosing the dual power supply. A. In the event of a power failure ...

T-cam switches and P-block switches are used in a wide range of standard circuits and currents, and the number of combinations of cam switches is virtually unlimited. Different designs, front panels and dedicated switches ensure optimum sensitivity to meet the requirements. Q1: P switch and T switch have ...

performance 1. Adopt double-row composite contacts, cross-connected mechanisms, micro-motor pre-energy storage and micro-electronic control technology, basically achieve zero arcing (no arc extinguishing cover); 2. Adopt reliable mechanical interlocking and electrical interlocking technology; 3. Adopt zero-crossing technology; 4、 ...

1. In addition to the short-circuit protection function of the fuse, the air switch can also realize the overload protection of the circuit. 2. The fuse is a one-time protection device, which must be replaced once it is blown and is very troublesome, so its reusability rate cannot be compared with the air switch. ...

(1) Before operation, check that the circuit breaker (switch) is in the opening position accordingly to prevent the isolation switch from being pulled and closed with load. (2) There is a locking device to prevent misoperation between the knife switch, the grounding knife switch and the switch, and the reverse operation must be carried out in order. If it is locked and cannot be operated, ...

1. Protection The most important role of the limit switch must be its protection effect, the limit switch is also known as the travel limit switch, which is mainly used to control the stroke of mechanical equipment and limit protection. In practice, the travel limit switch is installed in a pre-arranged position, and the travel limit switch is installed in a pre-arranged position.

1. For vertical installation, the switch frame, closing mechanism, cable sheath, and protective steel pipe should be reliably grounded (not connected in series). 2. Before operation, several no-load opening and closing operations should be carried out, and each rotating part should be free of jamming, closing in place, and there should be enough safety distance after opening. ...

1) When there is a power outage for any reason and the power cannot be restored in a short period of time, the backup power supply must be activated 1. Cut off the circuit breakers of the mains power supply (including the circuit breakers of the control cabinet in the distribution room, and the mains power supply cut-off of the dual power switching box), and pull the double-cast anti-reverse switch to the side of the self-provided power supply to ensure that the power supply is protected.

1. It can isolate the power supply, with a significant disconnection point, and is mostly used for fixed high-voltage devices; 2. It has arc extinguishing equipment and a certain opening and closing rate, and can pass through the normal working current and the specified short-circuit circuit in the case of closing; 3. It is forbidden to connect and cut off the circuit with load, ...

First, the reason for the fault of the induction circuit of the switch button indicator 1. Aging of circuit board: The circuit board of the switch button indicator induction circuit board may be aged if it has been used for too long, resulting in leakage in the circuit, and then the induction failure of the indicator light. 2. Sense ...