CHINT Transformer NDK(BK)-700

10/29/2022

What is a Servo Drive

Servo drive, also known as "servo controller" and "servo amplifier", is a controller used to control servo motors, and its function is similar to that of frequency converters used for ordinary AC motor.

06/28/2020

Compressor-Hitachi 3p cold storage compressor

Compressor-Hitachi 3p cold storage compressor How to distinguish the big feet of Guangzhou Hitachi inverter fixed frequency compressors? The busier the production, the more problems. Recently, many customers are asking us if Guangzhou Hitachi Inverter Fixed Frequency Compressor still has big foot machine and small foot machine? How to distinguish?

03/29/2022

What is a Linear Guideway?

Linear guideway, also known as linear guide rail, slide rail, linear guide and linear slide rail, is used for high-precision or high-speed linear reciprocating motion. It can bear a certain torque and realize high-precision linear motion under high load.

08/17/2020

Causes and solutions for high-pressure alarms of refrigerators

Generally, the refrigerator is equipped with a full set of protection devices. When the refrigerator has a high-pressure alarm, it will automatically start the protection device, and the corresponding fault indicator will light up

07/07/2020

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

04/05/2024

Analysis and Solutions to AC Servo Motor Vibration Faults

AC servo motors are used in closed environments and are usually not easily damaged. But if the AC servo motor has vibration failure, what is the reason?

08/04/2020

HVAC people, have you made these mistakes?

As a HVAC person, constantly summing up experience and accumulating knowledge in the work can be said to be a necessary quality, but as the saying goes, failure is the mother of success.

07/18/2020

Explanation of the excellent performance of each component of the screw chiller

　The application of screw refrigeration compressors is becoming more and more common, and some of them have entered the period of frequent failures. When the abrasion of the female and male rotors, body, and exhaust end seat of the refrigeration compressor reaches above 0.65rnm, vibration will occur when the refrigeration compressor is running, the sound is abnormal, the cooling capacity is reduced, and the compressor cannot work normally.

01/07/2021

The method to identify the failure of the totally enclosed refrigeration compressor is very effective!

The method to identify the failure of the totally enclosed refrigeration compressor is very effective! 1. How to identify the three binding posts on the casing of the hermetic compressor? Running end (R), starting end (S), common end (C), the re器2䀀
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07/17/2024

Irrigation Solenoid Valves: Common Faults, Causes and Troubleshooting

Generally, before diagnosing the problem of irrigation solenoid valves (sprinkler solenoid valves), some work needs to be done: such as determining whether the water source is turned on, whether the controller is connected to the power supply and the program setting is correct, whether the flow control handle on the solenoid valve is closed, and then try operating the valve manually.