frequently asked questions – Yueqing Weixin Electric Technology Co., Ltd https://www.lewsin.com Power stabilizer Mon, 12 May 2025 07:14:55 +0000 en-US hourly 1 https://wordpress.org/?v=7.1 Instructions for Using SBW High Power Voltage Regulator https://www.lewsin.com/?p=8087&lang=en https://www.lewsin.com/?p=8087&lang=en#respond Wed, 05 Jul 2023 07:01:02 +0000 https://www.lewsin.com/?p=8087 Instructions for Using SBW High Power Voltage Regulator
Before putting the voltage regulator into operation, it is necessary to understand its usage conditions and methods
The current of the load cannot exceed the specified output current.
The output voltage is within the allowable range. If the output voltage is unstable, it should be promptly checked for faults before use.
Under normal usage conditions, the voltage regulator can be used continuously for a long time when it is under load.
Analysis and troubleshooting of high-power voltage regulator faults:
If the output voltage deviates significantly from the voltage regulator, the manual and automatic transfer switches should not be in the automatic position, but should be placed in the automatic position. If the input voltage has exceeded the stable voltage range, the carbon brush has poor contact, or it does not slide on the slide at all, it should be adjusted in a timely manner.
If the output voltage deviates very little from the voltage regulator, the potentiometer controlling the voltage regulator should be adjusted.
If the output voltage oscillates or the voltage of the power grid fluctuates greatly in an instant, it may be due to changes in the load,
Maintenance of high-power voltage regulator:
Depending on its usage environment or maintenance cycle, voltage regulation is usually maintained every three months or six months.
When cleaning the dust in various components of the voltage regulator, especially the carbon brush, slide, brush holder, and transmission mechanism, it is necessary to use carbon tetrachloride and cotton cloth for wiping.
The condition has worn out the damaged carbon brush.
The regulator should adjust the tension of the chain every two months of operation. ]]> https://www.lewsin.com/?feed=rss2&p=8087&lang=en 0 How to choose the power size of the voltage regulator https://www.lewsin.com/?p=8059&lang=en https://www.lewsin.com/?p=8059&lang=en#respond Tue, 04 Jul 2023 07:22:10 +0000 https://www.lewsin.com/?p=8059 How to choose the power size of the voltage regulator
Firstly, we need to clarify what type of electrical equipment it belongs to. Generally, loads are divided into pure resistive loads, inductive loads, and capacitive loads. Regardless of the load, considering factors such as the electrical environment and the power factor of the voltage regulator production factory, we must choose a reasonable voltage regulator power supply. At the rated power of the electrical equipment, sufficient margin should be left, especially for inductive capacitive loads.
How to choose a regulated power supply is as follows:
1. For purely resistive loads such as incandescent lamps, induction cookers, resistance wires, and other electrical equipment, the power of the voltage regulator should be selected to be 1-2 times the device power. For example, the commonly used induction cooker is 1000VA, so you can choose a 2000VA voltage regulator.

 

2. For inductive and capacitive loads such as fans, water pumps, refrigerators, and other electrical equipment, the power of the voltage regulator should be 3-5 times the load power. For example, if the power of a small water pump is 2000VA, it is more reasonable to choose a 6000VA voltage regulator.

3. For large inductive and capacitive loads, such as deep well water intake equipment, large squirrel cage motors, tunnel excavation equipment, etc., the power of the voltage regulator should be selected as 5-8 times the power of the electrical equipment. We should configure the power regulator at least 5 times the load power.

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