Three-phase voltage regulator

SBK series three-phase isolation transformer Overview: SBK series three-phase transformer is mainly used for a variety of low voltage electrical, import and export of equipment, precision machine tools, UPS, electroplating, lighting, heating control electricity, telecommunications, chemical industry equipment, power supply purposes. Isolation transformer: isolation transformer with the establishment of the new center line - grounding grid can relieve common mode interference and other midline troubled isolation transformer to convert three-wire four-wire connection △ Yo systems, add shielding to further relieve the internal transformer-coupled high frequency pulse interference and noise, although shielded isolation transformer various NG interference (pulse and high frequency noise) can effectively prevent, but the transformer must be properly grounded correctly, very strict, otherwise there will be no resistance to common mode interference effect. The company provides customers design and production of high-quality isolation transformer. Features Benefits: Feature Benefit SBK series three-phase transformer: l high isolation 2 NG good performance 3 highly common mode interference suppression △ 4 will be converted to Y or Y to △ 5 voltage taps easy to convert 6 A user's specific performance requirements and design SBK series three-phase isolation transformer relevant parameters are as follows: · Rated Capacity: 1kVA ~ 1000kVA · Rated voltage: 660V, 480V, 380V, 220V, 200V, etc. * Rated frequency: 50Hz, 60Hz · coupling group: Y, yn0, Y, d11 , D, yn11 etc. ? Protection class: IP00, IP20 · Insulation Grade: B grade, F grade, H grade SBK series three-phase isolation transformer Environment: · Altitude: ≤1000m · adapt to the environment temperature: -10 ~ + 45 ℃ · adaptation relative temperature: 26 ℃ when, ≤95% · Operating environment: indoor (outdoor use, provide protection grade) SBK series three-phase isolation transformer structural characteristics: core SBK series three-phase transformers using high-quality cold rolled silicon steel sheet stack from the system, depending on the insulation levels, different insulation levels overall dipping insulating paint, can effectively reduce transformer noise, reduce the impact of salt spray, mold and other for transformers. Depending on the degree of protection, transformer cabinet is made of high quality steel plate, the structure of both the full consideration of air circulation, can effectively play a protective role, transformer connection cable is also very easy to connect, design full of humanity. According to user requirements to install a voltage meter, power indicator, molded case circuit breakers. Applications: 1 retrofitted power supply input or output 2 Any system needs to be isolated and shielded isolation transformer power supply installed in a typical application, the power input isolation transformer access (delta / star) 1 If the power grid and the third harmonic interference signal more serious, use △ / Yo isolation transformer, you can remove the third harmonic and reduce signal interference. 2, can be used △ / Yo isolation transformer to generate new neutral line, the equipment has nothing to do with the grid neutral, neutral to avoid grid caused due to poor equipment is not functioning properly. 3, non-linear load current waveform distortion caused (such as third harmonic) can be isolated without contamination grid. Second, access to the power output isolation transformer (star / delta) 1, to prevent non-linear load current distortion, affecting the normal operation of power supply is restored to the grid and plays the role of clean power. 2, non-linear load current distortion affect the accuracy of sampling, can be isolated in Yo / △ transformer input of the sample to obtain a control signal can reflect the actual situation, so that normal power supply control. 3, if the load imbalance, the use of Yo / △ not affect the normal operation of power supply. SBK series three-phase isolation transformer Ordering Information: * Model Rated capacity Rated voltage coupling group · work · · · Protection class Insulation class · other special requirements in the technical provisions of the agreement again. SBK series three-phase isolation transformer Users: 1, check the box: the box has not been damaged during transport; technical documentation within the cabinet, certificate, warranty cards and accessories are complete; transformers and other components are intact ; whether there are loose fasteners, displacement, whether terminals have poor contact. 2, place Notice: transformer installation site must be dry and ventilated, no strong vibration, no sand lime water leakage; place the relocation must be handled with care, non-tilted excessively, the machine chassis in place after the force should be uniform, the box is placed smooth ; place where the four weeks should be sufficient space room, make sure the machine's ventilation and maintenance. 3, insulation requirements: short "input" and "output" terminal and leads to the test point, test point on the ground (the machine shell) 1000 megger insulation resistance test, this value should be greater than 2 megohms. 4, check the wiring: the first step of commissioning is the most important jobs is to carefully check the wiring, this work is the key to ensure reliable operation of the transformer, must do a good job. As follows: a: Check the main circuit wiring is solid and reliable, especially for wiring QF air switch KM contactor contacts at whether loosening, must be tightened. b: Check the panel on the back of various electrical devices, such as the contact wire voltmeter, ammeter, the indicator is reliable, if loose, must be tightened. 5. Conditions: SBK series transformer should be used indoors, the normal conditions: ambient temperature: -15 ° C ~ + 45 ° C Altitude: 1000m; Relative humidity: 90%; installation site should not seriously affect the transformer insulation strength of gas, steam, chemical precipitation, dust, dirt and other explosive and aggressive media; installation site should be no serious vibration or Britain