Product – Yueqing Weixin Electric Technology Co., Ltd

LED/TDGC2-5KVA

lewsin — Sat, 15 Jul 2023 10:58:10 +0000

Voltage regulators have the characteristics of waveform distortion free, small size, light weight, high efficiency, convenient use, reliable performance, and long-term operation. They achieve the purpose of voltage regulation, temperature control, dimming, power control, etc. They are widely used in chemical, metallurgical instruments, electromechanical manufacturing, light industry, scientific experiments, public facilities, household appliances, temperature control and speed regulation, dimming, and power control. They are an ideal AC voltage regulation power supply.

1. Environmental temperature: * * Temperature+40 ℃, * * Temperature -5 ℃.

2. Altitude: The installation location of the voltage regulator has an altitude not exceeding 1000 meters.

3. Relative humidity of the air: The average relative humidity of the wettest month is 90%, and the average temperature of that month is 25 ℃.

4. Power supply voltage waveform: The power supply voltage waveform is a sine wave or similar to a sine wave.

5. The installation location does not have any gases, vapors, chemical deposits, dust, dirt, or other explosive and corrosive media that seriously affect the insulation of the voltage regulator;
6. The installation site should be free from severe vibrations and bumps;

Vertical single-phase electronic transformer network high-frequency PM0531NL

lewsin — Sat, 15 Jul 2023 10:38:09 +0000

Electronic transformer is a new type of electrical energy conversion equipment, which not only has the basic functions of voltage conversion, electrical isolation, and energy transfer that traditional power transformers have, but also can achieve additional functions such as power quality regulation, system flow control, and reactive power compensation. The reason why power electronic transformers can achieve these additional functions is mainly because they can flexibly process and control the amplitude and phase of the voltage or current of the primary and secondary sides of the transformer by introducing power electronic conversion technology and control technology, and can control the power flow of the system according to actual needs. Therefore, power electronic transformers can achieve more stable and flexible transmission, and can solve many problems in today’s power system. Their application prospects will also be very broad. [1] Compared with traditional power transformers, PET has the following characteristics: ① Small size and light weight; ② It can be cooled with air, does not require insulation oil for isolation, reduces pollution, and is easy to maintain with good safety; ③ Capable of producing a constant amplitude voltage output from the secondary side of the transformer; ④ It can improve power quality, obtain sine waveform input current and output voltage, and achieve unity power factor. The voltage and current on both sides of the transformer are controllable, so the power factor can be adjusted arbitrarily; ⑤ Having the function of a circuit breaker, high-power power electronic devices can instantly (in microseconds) turn off high fault currents, eliminating the need for relay protection devices. In addition, power electronic transformers also have some special uses, such as: after being connected to batteries, they can improve the reliability of power supply; Capable of achieving special transformation functions from three-phase to two-phase or from three-phase to four phase; Capable of outputting both AC and DC power simultaneously. In the literature, the author conducted a simulation comparison and analysis of conventional power transformers and self balancing power electronic transformers. The literature mainly focused on five working conditions for simulation research. From the simulation results, PET has good input-output characteristics under full load rated operation, low-voltage side single-phase disconnection, three-phase short circuit, as well as high-voltage side three-phase voltage imbalance and harmonic pollution. It can avoid the impact of one side system imbalance on the other side system, and therefore has better performance than conventional power transformers。

Glue filled transformer

lewsin — Sat, 15 Jul 2023 10:22:35 +0000

This utility model relates to a glue filled transformer It includes a winding base with a coil wound on a silicon steel sheet. The primary and secondary coils in the coil are connected to metal pins and output wires, respectively. An insulating material and an outer shell are also wrapped on the outside. The insulating material is made of polyester resin mixed with calcium carbonate and hardener for solidification The outer shell is a one-piece molded body made of polyvinyl chloride material Through the above design, the transformer can be directly integrated with insulation material and outer shell in the mold, forming excellent sealing insulation protection. Moreover, through its special insulation material composition design, the transformer has excellent high voltage resistance, waterproof performance, and heat conduction effect
A glue filled transformer has a winding base, and coils are wound on the silicon steel sheets of the winding base. The primary and secondary coils in the coils are respectively connected to metal pins and output wires, and then coated with an insulation material and an outer shell. The characteristic is that the insulation material is coated on the outer side of the winding base and cured by mixing polyester resin with calcium carbonate and hardener. It is completely filled inside the outer shell made of polyvinyl chloride material to form a solid body.

Electronic switch power supply transformer, high voltage isolation transformer

lewsin — Sat, 15 Jul 2023 10:12:47 +0000

Material description of transformer:
① Iron core
We use brand new high-quality high silicon steel sheets, mainly made of 0.35 thick H18, H14, H12, Z11 high-quality silicon steel sheets. Based on the requirements and usage conditions of the guest room, we select the most suitable materials to achieve the best performance design of the transformer. (The conventional material is brand new high-quality silicon steel sheet).
② Wire rod
We use PEW, UEW, EIW, SEIW, FEAI enameled wire and glass fiber wrapped wire, with temperature resistance levels of F (155 ℃), H (180 ℃), HC (200 ℃), and C (220 ℃). (The conventional temperature resistance level is H-level 180 ℃).
③ Insulation material
Using high-temperature resistant insulation paper as the insulation material, it has multiple properties including high-temperature insulation, flame retardancy, and moisture resistance.
④ Wiring terminal block
Low power adopts terminal block, with beautiful appearance, excellent pressure resistance, temperature resistance, and flame retardant performance. High power uses high-quality copper bars.
⑤ Iron feet
Mainly using CNC bending cold plate, there are environmentally friendly electroplating options available, such as plating with colorful (golden), blue zinc (silver white), white zinc (ivory white), and surface anodizing (black).
Normal working conditions:
1. The upper limit of ambient air temperature shall not exceed+40 ℃:
2. The average temperature of the surrounding air for 24 hours shall not exceed+30 ℃:
3. The lower limit of ambient air temperature shall not be lower than -5 ℃:
4. Altitude: The altitude of the installation location shall not exceed 2000 meters
5. Atmospheric conditions: The relative humidity of the atmosphere should not exceed 50% when the surrounding air temperature is+40 ℃. Higher relative temperatures can occur at lower temperatures, with an average maximum relative humidity of 90% in the wettest month and an average minimum temperature of+25 ℃. Additionally, condensation on the product surface due to temperature changes should be taken into account
6. Pollution level: Pollution level is level three:
7. Installation category (overvoltage category): Installation category is Class III:
8. Power supply voltage: allowable deviation of power supply voltage ± 5%:
9. Installation conditions: Install in a place without severe vibration and impact vibration.
Scope of application:
Posts and telecommunications, shopping malls, elevators, hospitals, schools, printing, securities and other places that require normal voltage, as well as large and medium-sized industrial and mining enterprise workshops, some power supply and important equipment and single machine matching.

Silver point AC contactor CJ20 locking contact

lewsin — Sat, 15 Jul 2023 07:52:40 +0000

CJ20 switching capacitor contactor is used in power systems with AC 50Hz or 60Hz and main circuit voltage up to 380V, as a self-healing low-voltage parallel capacitor in power factor compensation devices for connection and disconnection. The contactor is equipped with surge suppression devices, which can effectively reduce the impact of closing surge on capacitors and suppress overvoltage during opening and closing. It can effectively suppress the surge current during closing, and has the advantages of small size, light weight, strong switching ability, and saving raw materials.
Working installation conditions
1. Surrounding air temperature: -5 ℃~+40 ℃, with an average temperature of no more than+35 ℃ over 24 hours.
2. Atmospheric conditions: At+40 ℃, the relative humidity of the atmosphere does not exceed 50%. At lower temperatures, there can be higher relative humidity. The average maximum relative humidity in the wettest month is 90% when the average lowest temperature is+25 ℃, taking into account condensation that occurs on the surface of the product due to temperature changes.
3. Altitude: The altitude of the installation site shall not exceed 2000 meters.
4. Pollution level: Level 3.
5. Installation conditions: The inclination between the installation surface and the vertical surface should not exceed ± 5 °, and there should be no significant shaking, impact, or vibration.

Small guide rail household AC contactor NCH8-25

lewsin — Sat, 15 Jul 2023 07:44:32 +0000

Model NCH8-25
Rated current 25 (A)
Number of poles: single/2-pole/4-pole
Main contact forms: 20, 11, 40, 22, 31, 02
Auxiliary contact types 20, 11, 40, 22, 31, 02
Coil voltage 220 (V)
Coil frequency 50 (Hz)
Coil power supply 220/230V
Order number NCH8-25
Rated voltage 220 (V)
Agreed heating current of 25
Working altitude 2000km
Working environment temperature -5~40
Arc extinguishing medium air type
Number of main contact poles: single pole
Type of AC contactor
Product series NCH8-25
Flying arc distance 10 (mm)
Rated segmentation capacity 25 (A)
Mechanical lifespan of 100 (10000 cycles)
Electrical lifespan of 100000 cycles
Product Certification CCC
Applicable to households, hotels, apartments, and other places
Customized processing or not
Material Number NCH8-25
Application scenario terminal power distribution
Main contact control circuit AC contactor
Number of normally open main contacts 2
Number of normally closed auxiliary contacts 2
Number of normally closed main contacts 2
Number of normally open auxiliary contacts 2
NCH8 series
Minimum packaging quantity 1
3C Certificate Number 202098037002101
Model quotation NCH8
Item number NCH8-25
Is there a dedicated cross-border export supply source
Unit platform
Weight 0.5kg
Other wiring methods
Additional Features Other
Shell code NCH8

CJX2 series AC contactor CJX2-2510

lewsin — Sat, 15 Jul 2023 07:26:34 +0000

Usage environment
● Environmental temperature: -25 to+40 ℃
● Altitude: not exceeding 300mm
Relative humidity of the air: not exceeding 50% at+40 ℃; At lower temperatures, there can be higher relative humidity; Not exceeding 90% at+25 ℃; And considering the condensation that occurs on the surface of the product
● Use environment: Avoid using media that may cause explosion hazards, as well as harmful gases and conductive dust that corrode metals and damage insulation
Installation position: The inclination between the installation surface and the vertical surface shall not exceed ± 30 ℃
● Shock and vibration: The product should be installed and used in a place without significant shaking, shock, and vibration
Advantage
The product complies with advanced national standards such as IEC, NFC, VDE, BS, as well as the Chinese GB14048-4 standard. Can be used in any country or region in the world and in relatively harsh environments
Technological economy refers to reaching the advanced level of the contemporary world, with small size, light weight, low energy consumption, long service life, derivative ability, and easy interchangeability and maintenance
The reliability of the product’s action during the process of power on suction and power-off release is in a leading position among contemporary similar products.

SVC-2kVA

lewsin — Fri, 14 Jul 2023 09:49:06 +0000

The high-precision fully automatic voltage regulator produced by Weixin Electric is an intelligent digital display voltage regulator. The product has multiple functions such as self inspection during startup, overvoltage and undervoltage protection, long and short delay selection, over temperature protection, over-current protection, etc. It has the characteristics of waveform distortion free, reliable performance, and long-term operation.
The TND (SVC) series single-phase high-precision fully automatic AC voltage regulator is one of our company’s leading products. Its structure consists of a contact type autotransformer, a servo motor, an automatic control circuit, etc. When the grid voltage is unstable or the load changes, the automatic sampling control circuit sends a signal to drive the servo motor, adjust the position of the autotransformer carbon brush, and adjust the output voltage to the rated value and reach a stable state.
This series of voltage regulators is a common type, with advantages such as a wide variety, complete specifications, and beautiful appearance. It has the characteristics of waveform distortion free, reliable performance, and long-term operation. It can be widely used in any electric field and is an ideal voltage regulator. Ensure that your electrical equipment is functioning properly.
application
□ Computer □ Testing equipment □ Lighting system □ Communication system □ Medical equipment □ Industrial automation equipment □ Household appliances
Product Performance
Input voltage single-phase 160V-250V ambient temperature -10 ℃~+40 ℃
Output voltage single-phase 220V or 110V customized relative humidity ＜ 95%
Voltage stabilization accuracy 220V ± 3% or 110V ± 3%, temperature rise less than 60 ℃
Frequency 50Hz/60Hz waveform distortion without additional waveform distortion
Adjustment time<1 second (when the input voltage changes by 10%), load power factor 0.8
Efficiency>90%, electrical strength 1500V/min
Overvoltage protection 246 ± 4V insulation resistance>2M Ω
The high-precision fully automatic voltage regulator produced by Weixin Electric is an intelligent digital display voltage regulator. The product has multiple functions such as self inspection during startup, overvoltage and undervoltage protection, long and short delay selection, over temperature protection, over-current protection, etc. It has the characteristics of waveform distortion free, reliable performance, and long-term operation.
The TNS (SVC) series single-phase high-precision fully automatic AC voltage regulator is one of our company’s leading products. Its structure consists of a contact type autotransformer, a servo motor, an automatic control circuit, etc. When the grid voltage is unstable or the load changes, the automatic sampling control circuit sends a signal to drive the servo motor, adjust the position of the autotransformer carbon brush, and adjust the output voltage to the rated value and reach a stable state.
This series of voltage regulators is a common type, with advantages such as a wide variety, complete specifications, and beautiful appearance. It has waveform distortion free, reliable performance, and can last for a long time. ·Usage occasions
□ Computer □ Testing equipment □ Lighting system □ Communication system □ Medical equipment □ Industrial automation equipment □ Household appliances

Digital high-precision voltage regulator

lewsin — Fri, 14 Jul 2023 08:40:11 +0000

The TND (SVC) series single-phase high-precision fully automatic AC voltage regulator is one of our company’s leading products. Its structure consists of a contact type autotransformer, a servo motor, an automatic control circuit, etc. When the grid voltage is unstable or the load changes, the automatic sampling control circuit sends a signal to drive the servo motor, adjust the position of the autotransformer carbon brush, and adjust the output voltage to the rated value and reach a stable state.
This series of voltage regulators is a common type, with advantages such as a wide variety, complete specifications, and beautiful appearance. It has the characteristics of waveform distortion free, reliable performance, and long-term operation. It can be widely used in any electric field and is an ideal voltage regulator. Ensure that your electrical equipment is functioning properly.
application
□ Computer □ Testing equipment □ Lighting system □ Communication system □ Medical equipment □ Industrial automation equipment □ Household appliances
Product Performance
Input voltage single-phase 160V-250V ambient temperature -10 ℃~+40 ℃
Output voltage single-phase 220V or 110V customized relative humidity ＜ 95%
Voltage stabilization accuracy 220V ± 3% or 110V ± 3%, temperature rise less than 60 ℃
Frequency 50Hz/60Hz waveform distortion without additional waveform distortion
Adjustment time<1 second (when the input voltage changes by 10%), load power factor 0.8
Efficiency>90%, electrical strength 1500V/min
Overvoltage protection 246 ± 4V insulation resistance>2M Ω

SVC/TND/AVR-C2000VA

lewsin — Fri, 14 Jul 2023 06:20:38 +0000

The high-precision fully automatic voltage regulator produced by Weixin Electric is an intelligent digital display voltage regulator with Japanese technology. The product has multiple functions such as self inspection during startup, overvoltage and undervoltage protection, long and short delay selection, over temperature protection, over-current protection, etc. It has the characteristics of waveform distortion free, reliable performance, and long-term operation.
The TND (SVC) series single-phase high-precision fully automatic AC voltage regulator is one of our company’s leading products. Its structure consists of a contact type autotransformer, a servo motor, an automatic control circuit, etc. When the grid voltage is unstable or the load changes, the automatic sampling control circuit sends a signal to drive the servo motor, adjust the position of the autotransformer carbon brush, and adjust the output voltage to the rated value and reach a stable state.
This series of voltage regulators is a common type, with advantages such as a wide variety, complete specifications, and beautiful appearance. It has the characteristics of waveform distortion free, reliable performance, and long-term operation. It can be widely used in any electric field and is an ideal voltage regulator. Ensure that your electrical equipment is functioning properly.
application
□ Computer □ Testing equipment □ Lighting system □ Communication system □ Medical equipment □ Industrial automation equipment □ Household appliances
Product Performance
Input voltage single-phase 160V-250V ambient temperature -10 ℃~+40 ℃
Output voltage single-phase 220V or 110V customized relative humidity ＜ 95%
Voltage stabilization accuracy 220V ± 3% or 110V ± 3%, temperature rise less than 60 ℃
Frequency 50Hz/60Hz waveform distortion without additional waveform distortion
Adjustment time<1 second (when the input voltage changes by 10%), load power factor 0.8
Efficiency>90%, electrical strength 1500V/min
Overvoltage protection 246 ± 4V insulation resistance>2M Ω