SVC Servo Motor Voltage Stabilizer
Rated Power: 0.5~200KVA
Input Voltage: Customizable
Input Frequency: 50/60Hz±10%
Output Voltage: 220/380V
MOQ: 1 Set/Piece
Brand: WINZPOWER
Product Introduction
SVC(TNS) three-phase high-precision fully automatic AC voltage stabilizer is a combination of 3 high-performance single-phase voltage stabilizers. The grid input power supply is a three-phase four-wire system, and the output power supply is also a three-phase four-wire system. It is equipped with three meters to indicate the three phases respectively, and is equipped with a shift switch and a voltmeter to shift and measure each phase. The voltage stabilizer has the advantages of small size, light weight, no waveform distortion, high efficiency, reliable performance, delay, overvoltage, etc. This series of voltage stabilizer drive is universal and is a real voltage stabilized power supply. It can be widely used in any occasion where power is required to ensure the normal operation of your electric drive equipment.
Compared with other types of voltage stabilizers, the cost of TNS series voltage stabilizers is significantly reduced. It uses a toroidal transformer as the main device for voltage regulation and stabilization. Because it is a paramagnetic circuit ring structure, the magnetic circuit is completely closed and there is no leakage magnetic flux, so its magnetic performance is optimal and more energy-saving.
Its electrical structure of three single-phase combination has a good suppression of voltage three-phase imbalance.
Working principle
When the power grid voltage fluctuates or the load varies, automatic sampling control circuit will send signal to drive the servo motor which can adjust the position of carbon brush of auto voltage regulator, then, the output voltage will be adjusted to rated value and get a steady state..
Voltage regulation principle
The primary winding connection of control and transforming voltage regulator TVV is in Y shape connected to the output end of the voltage stabilizer and connecting with the primary winding of compensating transformer TBa, but the secondary winding of the compensating transformer TBa is series-connected in the main circuit, Taking phase A as an example to indicate the working principle of the voltage stabilizing as shown in Fig.1. If the voltage drop of the impedance of the compensating transformer is negligible, it can be see from the picture above:
Uao= Uai + UBa The principle is: when input voltage Uai of phase A increases △Uai compensating voltage Uba correspondingly changes △Uba and when △Uai is equal to-△Uba ,output voltage Uao of phase A keeps no change, and phase B and phase C is the same as phase A.
The process of the voltage stabilizing is: depending on the variation of the output voltage, voltage measuring unit obtains the sample of such variation, measures it and outputs the signal to control SM operation of the servo-motor, through the speed-reducer and chain wheel, to make the brush set sliding or rolling on voltage regulator TVV to regulate the secondary voltage of TVV so as to change the polarity and size of the compensating voltage and assure that the output voltage is automatically stabilized within the allowable setting accuracy range of the voltage stabilizing, thus achieving the automatic voltage stabilizing.
Input voltage and output power curve
The relationship between output capacity and input voltage is shown in Figure 1. When the input voltage of single-phase regulator is lower than 198V, the input voltage of three-phase regulator is lower than 342V or the phase voltage is lower than 198V, the output capacity of the product will be reduced, and the capacity must be reduced.
Vi Input Voltage(V)
P2 Output Capacity(VA)
P Rated Output Capacity(VA)
List Of SVC(TNS) AVR Technical Parameters
| Input Technical Parameters |
||
| Item | Technical Indicators | Remark |
| Rated Voltage(Vac) | Three Phase 200V/208V/220V/380V/400V/440V/480V(Any voltage can be customized)Single phase 110V/220V/230V/380V(Any voltage can be customized) | Three phase three wire (L1, L2, L3) +N+ Ground(PE).Single phase two line (L, N) + Ground(PE).The system can use a Neutral line or not.Any line entry method can be customized |
| Input Voltage Range(%) | (Rated Voltage)±20%.e.g.380V±20%(Customizable other voltage input ranges) | Generally, the input voltage range can be ±15%/20%/30%/40% of the rated voltage. |
| Input Frequency(Hz) | Default 40~79Hz | Other frequencies can be customized |
| Efficiency | 98% | |
| Output isolation transformer | △/Y or Y/Y | Optional |
| Output Technical Parameters | ||
| Voltage Regulation Mode | Thyristor adjustment transformer | |
| Output voltage(Vac) | Three-phase 380V/400V (±10% adjustable) Single-phase 220V/230V (±10% adjustable) |
Other voltages can also be customized, e.g: Three-phase 200V/220/440V/480V or other. |
| Output voltage stability (average accuracy) | ±1-5% (2-5% for normal products) | |
| Dynamic Response time | 100ms(Relative AC input voltage) | |
| Output THD Increase | ＜0.1%(static and dynamic) | No additional waveform distortion (static and dynamic) is generated. The voltage THD increment is less than 0.1% |
| Output Frequency | Same as input frequency | |
| Three-phase imbalance | Three-phase voltage automatic control balance(YES) | |
| Applicable load type | Any load type (resistive, inductive, capacitive) | |
| Bypass function | ||
| Controller parameters | ||
| Control Mode | Full digital control | The analog part is used for input and output signal conditioning |
| Main control unit | The main chip uses STM32F4XX for control and measurement | Some models use ARM master control with DSP function |
| Control strategy | Comparator & PID | |
| Motor Drive Mode | DC motor by mosfet driver(Diode freewheeling protection) | |
| Stabilization Time | The input voltage ratings relative to the Range change of 10%, stable time less than 1.5second | |
| Voltage and current measurement methods | True RMS sampling (three-phase synchronization) | RMS & FFT sampling 256 points |
| Voltage & Current Control Strategy | PID Voltage closed loop control | |
| Communication interface | RS485/232/MODBUS-RTU Protocol | Optional TCP/IP, GPRS and other interfaces |
| Display parameters | ||
| Display Media | Multi function LCD segment code | Industrial touch screen(7″or 10″) can also be customized |
| Display electrical parameters |
Input three-phase voltage and frequency; Output three-phase line voltage and frequency; Output line voltage average value; Output power factor;Output three-phase current; Output active power and apparent power; |
|
| Display alarm information | Input overvoltage (OV), overcurrent (OC); input undervoltage (UV); Fuse failure; Overload;Phase sequence fault; and other fault information | |
| Display accuracy | The accuracy is Class 0.5s | |
| Voltage display resolution | 0.1V | |
| Current display resolution | 0.1A | |
| Protection | ||
| Protection List | Input overvoltage (OV), overcurrent (OC); input undervoltage (UV); IGBT failure; heat sink overheat; transformer overheat; and Short Circuit. | |
| Protection Action | Cut off output and alarm;Automatic bypass;Automatically start after failure recovery | Fault dry contacts can be configured(NC&NO) |
| The Environment | ||
| Working Temperature（℃） | -25℃+45℃ | Extreme temperature environments require special customization or derating |
| Relative Humidity（RH） | 10%-90%(20℃±5℃) | |
| Altitude | ＜2000m | For every 1000m increase in altitude, the rating should be derated by 10%. |
| IP Class | IP20 | Other IP Classes such as outdoor IP33 can be customized |
| Noise Level(dB) | ＜55dB | |
| Other special requirements can be communicated with winzele | ||
List of AVR(TNS) AVR Models & Products
1.Three-phase Model List(Their rated input voltage can be Three-phase 200V/220V/380V/440V/480V etc)
| Type |
Capacity (kVA) |
Current (A) |
Dimension W×D×H(mm) |
| TNS-1.5KVA | 1.5KVA | 1.85A | 490×350×170 |
| TNS-3KVA | 3KVA | 3.7A | 490×350×170 |
| TNS-4.5KVA | 4.5KVA | 6.84A | 490×350×170 |
| TNS-6KVA | 6KVA | 9.1A | 320×320×680 |
| TNS-9KVA | 9KVA | 13.7A | 360×380×730 |
| TNS-15KVA | 15KVA | 22.5A | 360×380×730 |
| TNS-20KVA | 20KVA | 30.4A | 430×500×840 |
| TNS-30KVA | 30KVA | 45.6A | 430×500×840 |
| TNS-50KVA | 50KVA | 76A | 610×540×1050 |
| TNS-60KVA | 60KVA | 91.2A | 610×540×1050 |
| TNS-80KVA | 80KVA | 122A | 650×580×1150 |
| TNS-100KVA | 100KVA | 152A | 650×580×1150 |
| TNS-120KVA | 120KVA | 182A | 700×650×1350 |
2.Single-phase Model List(Their rated input voltage can be Single-phase 110V/220V/380V/440V/480V)
| Type |
Capacity (kVA) |
Current (A) |
Dimension W×D×H(mm) |
| TND-0.5KVA | 0.5KVA | 2.3A | 190×180×150 |
| TND-1KVA | 1KVA | 4.5A | 220×220×160 |
| TND-1.5KVA | 1.5KVA | 6.8A | 220×220×160 |
| TND-2KVA | 2KVA | 9.1A | 240×270×210 |
| TND-3KVA | 3KVA | 13.63A | 240×300×230 |
| TND-5KVA | 5KVA | 22.7A | 220×306×280 |
| TND-7KVA | 7KVA | 31.8A | 250×410×360 |
| TND-10KVA | 10KVA | 45.5A | 320×350×570 |
| TND-15KVA | 15KVA | 68.2A | 350×390×660 |
| TND-20KVA | 20KVA | 91A | 350×390×660 |
| TND-30KVA | 30KVA | 136A | 500×500×960 |
| TND-40KVA | 40KVA | 182A | 550×550×1060 |
| TND-50KVA | 50KVA | 227A | 600×500×1060 |
Application
The products can be widely used in office equipment, testing equipment, medical equipment, industrial automation equipment, household appliances, lighting systems, communication systems, Internet cafes, etc.
Cases and Gallery
AVR three-phase outdoor TNS-50KVA
AVR Single-phase TND-1000VA
AVR Single-phase TND-30000VA 
AVR three-phase outdoor TNS-80KVA(LCD display with GPRS module function)
AVR single/three-phase outdoor TNS-80KVA&TND-30KVA(LCD display with GPRS module function)
Automatic Voltage Stabilizer TNS-80KVA
Three-phase Automatic Voltage Stabilizer
Three-phase Automatic Voltage Stabilizer TNS-60KVA
Single-phase Automatic Voltage Stabilizer TND-40KVA
