What is the stencil tension tester Introduction of the tension detector

The detection principle of transformer induction insulation withstand voltage tester.

Compared with the main insulation of the transformer, that is, the insulation between the windings and the windings and between the windings and the core, the transformer has another important insulation performance index: longitudinal insulation. Longitudinal insulation refers to the insulation between different points and different parts of the transformer winding with different potentials, mainly including the insulation performance between turns, layers and sections of the winding, and the "induction withstand voltage test" specified in the national standard and the International Electrotechnical Commission (IEC) standard is one of the test methods specially used to test the longitudinal insulation performance of the transformer. The longitudinal insulation of the transformer mainly depends on the insulating medium in the windings - the insulating paint of the enameled wire itself, transformer oil, insulating paper, impregnating paint and insulating glue, etc. (different types of transformers may contain one or more of these insulating media); It is difficult to ensure 100% purity of longitudinal insulating dielectric, and it is inevitable to mix solid impurities, bubbles or water, etc., and it will also be damaged to varying degrees during the production process; The highest field strength of the transformer is concentrated in these defects, and the temperature rise of long-term load operation reduces the breakdown voltage of the insulating medium, resulting in partial discharge, and the power absorbed by the dielectric through the external alternating electric field, that is, the dielectric loss will increase significantly, resulting in serious dielectric heating, and the increase of dielectric conductance, and the large current of this part will also produce heat, which will make the temperature of the dielectric continue to rise, and the increase in temperature will in turn increase the conductance of the dielectric.

This long-term vicious cycle will eventually lead to the thermal breakdown of the dielectric and the destruction of the entire transformer. This fault is manifested in the characteristics of the transformer, that is, the no-load current and no-load power consumption increase significantly, and the windings have undesirable phenomena such as burning, arcing, vibration and whine. It can be seen that it is extremely necessary to use the induction withstand voltage test to detect whether the transformer contains longitudinal insulation defects.

Huaneng Solar Electric is specialized in production.

Serial resonance test device.

Wire Fault Tester.

No partial discharge power frequency test transformer.

Hand crank pulse generator.

Wireless phase phaser.

Mechanical earth resistance shake meter.

Programmable withstand voltage tester.

Current transformer wiring diagram.

Nuclear phaser. Power frequency withstand voltage test.

Power frequency voltage. If you need to understand other parameters of the above equipment, please take a look at "Wuhan Huaneng Sunshine Electric".

It is an instrument that tests the tension of the steel stencil in a certain way with a standard.

The 14th Shenzhen International Mobile Phone Industry Exhibition in 2012 will be held in Shenzhen Convention and Exhibition Center from November 25 to 27, 2012, we hold the mobile phone exhibition this year is already the 14th, through the accumulation of experience and manufacturer resources in previous exhibitions, our exhibition area this year is 63,000 square meters, 3,800 standard booths, more than 2,000 enterprises participated. We are building the entire mobile phone industry chain, whether from the whole machine manufacturers, design companies, value-added service providers, parts manufacturers, mobile phone channel providers, software business developers and related equipment manufacturers and other industrial chain enterprises have convened the industry elite enterprises, built a display platform for the upstream and downstream of the entire industry, this exhibition will set up a special exhibition: Apple products peripheral accessories exhibition, including:

iPod, iPhone, iPad and all other accessories, we will also hold wonderful seminars at the same time, if you need more information, 135 Baidu 6427 admin 8781

The tensiometer is used to measure the mutual traction force between the internal screen and the contact body of the fixed wire mesh when it is subjected to tensile force.

The size of the instrument.

Tension score: wire tensiometer, horizontal circular tensiometer, textile tensiometer, steel mesh tensiometer, belt tension meter.

There are two types of tensiometers: mechanical and electronic, and the unit of measuring tension is expressed in gf or kgf. Tension can also be expressed as a relative numerical value.

The tensiometer is a kind of tension expressed by a relative value, which is calculated by the value (mm) of the depth of the mesh sinking by the weight of the tensiometer itself, and the tension value can be obtained directly from the indicator dial or indirectly from the control panel.

There are two types of tensiometers: manual operation and mechanical operation.

The tensiometer is an important testing instrument to check the quality of the screen printing plate.

In order to ensure that the tension required by the plate is obtained, a tensiometer should be used to measure it during or after the stretching of the net.

Tension detector 1 (Maxcess MC01 400 830 1898), also known as tension sensor (Maxcess MC01 400 830 1898), is an instrument used to measure the tension value of the coil in the tension control process.

The small design can meet the width of the coil to the greatest extent.

A wide range of flexible installation options are available.

Rugged connections deliver long-term reliable performance.

Mechanical overload limiter protects the overloaded machine.

Complete Wheatstone Bridge to ensure measurement accuracy.

There are international devices in both imperial and metric modes.

Screw mounting, piling block mounting, flange mounting.

The detectors have a wide range of products and are generally used in pharmaceutical, chemical, biomimicry, instrumentation and software. Steel mills, foil production plants.

Overview. Tension control has a wide range of die production, providing you with accurate tension monitoring at all times. These dies can be easily combined to create the ideal tension monitoring solution for your needs.

Analog and digital amplifiers can be used to transmit 0-10VDC or 4-20mADC signals to PLCs or motor driversMounting options: DIN standard rail (CE), wall mounting, flush panel mounting.

ast 3is； wst 3； gate 3s； tad 3； win 3； deltacom；

How it works.

Tension detectors can be divided into strain gauge type and micro-displacement type according to their principle, and the amount of change will be proportional to the amount of tension applied, resulting in a displacement of about 200 m due to the extremely small displacement of the leaf spring. In addition, it is divided into axle table type, through-shaft type, cantilever type, etc.