PIZZATO Switch FP 957

09/06/2020

Main properties of permanent magnet materials commonly used in motors

Permanent magnet materials commonly used in motors include sintered magnets and bonded magnets. The main types are AlNiCo, ferrite, samarium cobalt and neodymium iron boron.

09/04/2020

How to improve enterprise safety management

Enterprise safety self-inspection is an important measure for enterprises to implement the main responsibility of safety, and it is also a skill that enterprises must master.

07/30/2020

Beware of "air conditioning disease" in summer, experts advise not to "greedy cold"

Recently, the high temperature outdoors in Haikou continues. To avoid the heat, many people like to stay in the air-conditioned room for one day. Some people even enter the air-conditioned room immediately after being caught off guard by a thunderstorm, causing cough, headache, runny nose

08/13/2020

Reasons for the reduction of refrigeration equipment system cooling capacity

Refrigeration equipment is a relatively large energy-consuming equipment, especially for summer cooling. Its electricity consumption costs are becoming more and more significant,

03/13/2021

Working mode of servo driver

The working modes of servo driver are: open loop mode, voltage mode, current mode (torque mode), IR compensation mode, Hall speed mode, encoder speed mode, tachometer mode, and analog position loop mode (ANP mode). (not all of the above modes exist in all models of drives)

07/30/2020

Case analysis of maintenance of central air-conditioning compressor

We all know that the compressor is the heart of the refrigeration system, and it can be said to be the lifeblood of the refrigeration system. The compressor often has various problems during long-term use.

07/16/2022

Common Faults of Gear Pump

Cause: A. the rotation direction is opposite; B. the suction or discharge valve is closed

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/20/2020

What to do if there is a refrigerant leak in an industrial chiller

When an enterprise uses an industrial chiller, if there is a serious leakage of refrigerant, the equipment will inevitably stop operating. Because industrial chillers have complete safety early warning equipment

06/14/2020

Relay protection concept and basic requirements

Before introducing relay protection, first introduce several working states of the power system (1) Normal working state It means that all the equality and inequality constraints of the power system are satisfied, indicating that the power system me器2䀀
ￜ皥
䖒皦즠Ʋ煔क़㲈Ʋ
䌁皦
ᮔDž༬皧煞क़Ѐ呄ᠾ鹨់༹皧
ࠄ
00령ꐱ댁珵뛐珵Љ
䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ
瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ￜ皥
ب