HITACHI VFD Frequency Converter WJ200-055HFE
Type: VFD
Brand: HITACHI
Voltage: three phase
Input: 3PH 380-480V 50-60HZ
Output: 3PH 380-480V 0.1-400Hz
Rated capacity: 9.7KVA
Type: VFD
Brand: HITACHI
Type: VFD
Brand: HITACHI
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08/05/2020
In the process of using industrial chillers, various problems will inevitably occur. Due to the structure of the industrial chiller, once the compression ratio of the compressor is too high, it will affect the working efficiency of the industrial chiller.
06/14/2020
1. It is better to use a central air conditioner ① Split machine and multi-connection Before chatting, first understand the two basic concepts of air conditioning, split machine and multi-line. The split machine is our common common air conditioner. 器2 䀀 ᅵ皥 䖒皦즠Ʋ嫜ི 㲈Ʋ 䌁皦 ᮔDž༬皧嫦ིЀ 呄ᠾ鹨់༹皧 ࠄ 00령ꐱ댁珵뛐珵Љ 䕄ྦ 뤂ᐱ뚜珵 ᴴᏩ呄ᠾ퍘ᒥ 鹨់ᩄ ꋔྦ 瑉浥 巠皱㙲皦抐皱 巠皱 ੨皦柘皱 ᅵ皥 ب 巠皱㙲皦忈皱 ੨皦柘皱 즠Ʋǜ 勁皦즠Ʋب ǜ V / 펔B䌁皦 ᮔDž '鱤džၜ먢䇨珵呈ᠾ뤂ᐱ ⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲ ᠾ 랖僧ӂ 識 �僬㣢ᐲ 臆S㥲ᐲ ᬄğ 識 理艏S杴 識杴 㥲ᐲ
04/18/2022
Because the output signal of the sensor is very small, it is usually only a few millivolts. In order to improve the anti-interference ability of the instrument, the zero potential in the input circuit must be grounded
09/22/2020
Since compressed air inevitably contains impurities such as solids, liquids, and gases, and each has its own characteristics, it cannot be achieved with a single device. Therefore, compressed air drying and purification becomes a system, a complete compressed air The drying purification system includes: 1) gas-liquid separator; 2) filter; 3) drying equipment and other facilities.
08/02/2020
When the air conditioner is lack of fluoride, the detection of leaks is the primary task of leakage repair. Today we introduce five common leak detection methods for you, namely fluorescent leak detection, soapy water leak detection
07/21/2020
Under a certain working condition, the gas mass delivered from the suction end to the discharge end per unit time is called the compressor mass air delivery under this working condition, and the unit is. If calculated according to the volume of the inhalation state, the volume of the air delivery is, and the unit is then
03/02/2022
For a long time, due to the lack of understanding of air compressors by some enterprises
08/05/2020
The working principle and classification of the overload protector. The overload protector of the compressor for air conditioning generally adopts a snap-type bimetallic protector, which consists of a heating wire,
07/15/2020
Friends who have used Copeland compressors know that Copeland compressors are relatively solid to use and are not so easily damaged. This is because Copeland compressors have several built-in protection programs. Overheat protection is one of them. Today we will talk about the internal temperature protector of the scroll compressor.
11/03/2021
Q1: Is HMI only used to connect to PLC? That’s not true. HMI products are originally produced to solve the problem of PLC human-computer interaction.