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29

Oct

2022

Why does the zero line get charged, so that the neon tube of the electroscope...

Why does the zero line get charged, so that the neon tube of the electroscope glows It involves the following knowledge points: 1. The principle of neon tube lighting The neon tube
29

Oct

2022

How to use test pen correctly

How to use test pen correctly Electric test pen, referred to as electric pen, is a common tool used to check and measure whether low-voltage electrical conductors and electrical eq
29

Oct

2022

The server signal shows lightning, and the digital display pen shows the reas...

The server signal shows lightning, and the digital display pen shows the reason for lightning Regarding the reasons for the digital display test pen to display lightning, including
29

Oct

2022

Instructions for use of digital test pen

Instructions for use of digital test pen 1. Button description: (A key) DIRECT, direct measurement key (far away from the LCD screen), that is, when using the batch head to directl
29

Oct

2022

Several Measurements of Digital Display Electric Pen

Several Measurements of Digital Display Electric Pen 1. Direct measurement method The direct measurement method refers to the measurement method in which the probe of the electric
29

Oct

2022

Use of Neon Tube Test Pens

Use of Neon Tube Test Pens 1. Distinguish between direct current and alternating current. When measuring a charged object, the two electrodes of the neon tube emit light at the sam
29

Oct

2022

What is Programmable DC Power Supply? Why choose a programmable power supply?

What is Programmable DC Power Supply? Why choose a programmable power supply? What is a program-controlled DC power supply? The program-controlled DC power supply sets the output v
29

Oct

2022

What should be checked when the DC regulated power supply is damaged?

What should be checked when the DC regulated power supply is damaged? 1. Line failure Line faults, such as damaged power cords, inability to connect to power, oxidized contact term
29

Oct

2022

What is the role of switching power supplies in the power industry?

What is the role of switching power supplies in the power industry? At present, due to the active implementation of the substation unmanned management policy in my country, the swi
29

Oct

2022

Why are HVDC power systems different from other power supply systems?

Why are HVDC power systems different from other power supply systems? 1. The reliability of the high-voltage DC power supply system is greatly improved - the main purpose of applyi
29

Oct

2022

What is the DC power shielding mechanism?

What is the DC power shielding mechanism? DC power transformer shielding principle Among them, C5 is the primary and secondary side capacitor of the transformer, which transmits th
29

Oct

2022

What is the use of the resistance between the DC power MOS tubes GS?

What is the use of the resistance between the DC power MOS tubes GS? The actual function of connecting the resistance between the DC power MOS tubes GS lies in the drive circuit of
29

Oct

2022

What are the common DC stabilized power supply capacitors?

What are the common DC stabilized power supply capacitors? 1. Filter capacitor: By using a filter to remove unnecessary AC components, the DC power supply connected between the pos
29

Oct

2022

Basic functions of DC voltage stabilized power supply, precautions for power ...

Basic functions of DC voltage stabilized power supply, precautions for power supply use 1. Basic functions of DC voltage stabilized power supply 1. The output voltage value can be
29

Oct

2022

What are the characteristics of high voltage DC power system (DC UPS)?

What are the characteristics of high voltage DC power system (DC UPS)? High-voltage DC power system (DC UPS) is a new generation of power products that meet the requirements of hig
29

Oct

2022

How does the AC variable frequency power supply perform the circuit breaker t...

How does the AC variable frequency power supply perform the circuit breaker test? With the development of society, people have higher and higher requirements for the safety and rel
29

Oct

2022

What is the load effect of DC power supply? How to reduce the effect?

What is the load effect of DC power supply? How to reduce the effect? There are only two types of power sources in everyday life: direct current and alternating current, and a dire
29

Oct

2022

Can high frequency switching power supplies be connected in series? Is there ...

Can high frequency switching power supplies be connected in series? Is there a risk in concatenation? In some types of high frequency switching power supply designs, components and
29

Oct

2022

How does the DC power supply control the CC/CV mode?

How does the DC power supply control the CC/CV mode? Most laboratories use a DC power supply as a constant voltage or constant current power supply. Remember that a power supply is
29

Oct

2022

How to use 400Hz intermediate frequency power supply? Main scope of application?

How to use 400Hz intermediate frequency power supply? Main scope of application? The 400Hz intermediate frequency power supply adopts high-frequency electronic switch conversion te

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