SVC(Voltage Stabilizer)

SVC (TND,TNS) series high-precision automatic AC voltage stabilizing power supply consists of contact type auto coupling voltage regulator, servo motor, automatic control circuit, etc. When the grid voltage is unstable or the load changes, the automatic control circuit drives the servo motor according to the change of the output voltage, adjusts the position of the carbon brush on the contact type auto coupling voltage regulator, so that the output voltage can be adjusted to the rated value.

The output voltage is stable, reliable, efficient, and can work continuously for along time. Especially in areas with large fluctuation of grid voltage or seasonal variation of grid voltage, the machine can obtain satisfactory results. Suitable for normal operation of instruments,meters,household appliances and other loads.

Product complies with JB/T8749.7 standard.

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Product Detail

Parameters

Samples & Structures

Dimensions

Selection Guide

SVC(TND)	0.5	kVA
Product model	Rated capacity	Capacity unit
SVC(TND):single-phase AC voltage regulator SVC(TNS):three-phase AC voltage stabilizer	0.5、1 ... 100kVA	kVA

Features and Scope of Application

The stabilized voltage power supply has the characteristics of beautiful appearance, low selfloss,complete protection functions, etc.It can be widely used in production,scientific research, medical and health care, air conditioners, refrigerators and other household appliances.It is an AC stabilized voltage power supply with ideal performance and price.

Normal Working Condition and Installation Environment

● Ambient temperature:-5~+40 °C;

● Relative humidity: no more than 90% (at 25 °C);

● Altitude: ≤ 2000m;

● Working environment: indoor without chemical deposit, dirt, harmful corrosive medium and flammable and explosive gas;it can work continuously.

Main Technical Data

See Table 1 for main technical indicators

Project/Number of phases (Table 1)	Single-phase	Three-phase
Input voltage range	160~250V	280~430V
output voltage	220V±25%	380±3%
Overvoltage protection value	246±4V	246±7V
Voltage regulating speed	<1s(when the input voltage changes 7.5V)
Rated frequency	50Hz
Electrical strength	Withstand 50Hz sine AC 1500V in cold state for 1min
Load power factor	0.8
Efficiency	More than 90%

Note:
1. The technical indicators of each unit refer to those shown on the enclosure.Single phase 0.5-3kVA with 110V±3% output voltage;

2. The in put voltage exceeds the above range, and special technical indicators can be specially ordered.

Electrical Schematic Diagram

● The electrical schematic diagram of 0.5kVA~1.5kVA high-precision full-automatic AC voltage stabilizer is shown in Figure2;

● See Figure3 for electrical schematic diagram above SVC-5kVA;

● See Figure4 for the electrical schematic diagram of single-phase voltage regulator;

● The electrical schematic diagram of three-phase voltage regulator is shown in Figure5.

Outline Drawings and Dimensions

SVC-0.5kVA~1.5kVA high-precision full-automatic AC voltage regulator:

SVC-2kVA~3kVA high-precision full-automatic AC voltage regulator:

1. Voltmeter

2. Voltage measurement button

3.Overvoltage indicator (red)

4. Working indicator (green)

5.Undervoltage indicator (yellow)

6.Power switch

7.Grounding

8.Input phase line

9.Input zero line

10.Output phase line(110V)

11.Output zero line(110V)

12.Output phase line(220V)

13.Output zero line(220V)

Note: For the wiring mode, single-phase SVC-2kVA~5kVA, unscrew the wiring screws fixed at the back of the backplane, use the section area of the bare wire part of the conductor to meet the needs of conducting current during load, press the stripped bare wire part at the top of the conductor fully according to the wiring diagram, and tighten it. It is strictly prohibited to loosen the screws in the front row of the wiring board to fix the internal conductors and use the conductors that do not meet the actual capacity.

See Figure 6 and Table 3 for Product Dimensions

Model(Table 3)	Capacity	Overall dimension AxBxH (cm)
SVC(single-phase)	0.5kVA	19×18×15
	1kVA	22×22×16
	1.5kVA	22×22×16
	2kVA	27×24×21
	3kVA	24×30×23
	5kVA	22×36×28
	7kVA	25×41×36
	10kVA(Horizontal)	25×41×36
	10kVA(Vertical)	32×35×57
	15kVA	35×39×66
	20kVA	35×39×66
	30kVA	50×50×96
SVC(three-phase)	1.5kVA	49×35×17
	3kVA	49×35×17
	4.5kVA	49×35×17
	6kVA	28×33×68
	9kVA	33×33×76
	15kVA	37×43×82
	20kVA	37×43×82
	30kVA	41×46×95
	50kVA	56×60×130
	60kVA	50×60×130
	100kVA	66×50×129

Main technical data

The main technical indicators are shown in Table1

Item/Phase	Single phase	Three phase
Input voltage range	160~250V	280-430V
The output voltage	220V ± 2.5%	380 ± 3%
Overvoltage protection value	246 ± 4V	426 ± 7V
Regulating speed	＜1s (At an input voltage of 7.5V)
rated frequency	50Hz
Electric strength	Withstand 50Hz sine AC 1500V in cold state for 1 min
Load power factor	0.8
Efficiency	＞90%

Note:
1. technical specifications of each machine with reference to those shown on the housing, single-phase 0.5-3kVA with 110V±3% output voltage.
2. Input voltage beyond the above range, and special technical indicators can be customized by special order.

Output capacity curve, see Figure 1:
Figure (1) Output capacity curve
Vi input voltage
P2 output capacity
P rated output capacity

Electrical schematic diagram

1. 0.5kVA-1.5kVA high precision fully automatic AC1 voltage regulator electrical schematic diagram in Figure 2.
2. the electrical schematic diagram of SVC-5kVA or above is shown in Figure 3.
3. single-phase voltage regulator electrical schematic diagram in Figure 4.
4. three-phase voltage regulator electrical schematic diagram in Figure 5

Model No.	Capacity	Dimensions A x B x H (cm)
SVC (single phase)	0.5kVA	19 x 18 x 15
	1kVA	22 x 22 x 16
	1.5kVA	22 x 22 x 16
	2kVA	27 x 24 x 21
	3kVA	24 x 30 x 23
	5kVA	22 x 36 x 28
	7kVA	25 x 41 x 36
	10kVA (horizontal)	25 x 41 x 36
	10kVA (vertical)	32 x 35 x 57
	15kVA	35 x 39 x 66
	20kVA	35 x 39 x 66
	30kVA	50 x 50 x 96
SVC (three phase)	1.5kVA	49 x 35 x 17
	3kVA	49 x 35 x 17
	4.5kVA	49 x 35 x 17
	6kVA	28 x 33 x 68
	9kVA	33 x 33 x 76
	15kVA	37 x 43 x 82
	20kVA	37 x 43 x 82
	30kVA	41 x 46 x 95

Shape Diagram

SVC-0.5kVA~1.5kVA Contact AC Voltage Stabilizer:

1. Two output sockets (220V)
2. Two output sockets (110V)
3. Voltmeter (output voltage)
4. Fuse holder (FU)
5. Working indicator light (green)
6. Undervoltage indicator light (yellow)
7. Power switch
8. Overvoltage indicator light (red)
9. Grounding
10. Input power cord
11. Output three sockets (220V)

SVC-2kVA～3kVA Contact AC Voltage Stabilizer:

1. Voltmeter
2. Voltage measurement button
3. Overvoltage indicator light (red)
4. Working indicator light (green)
5. Power switch
6. Undervoltage indicator light (yellow)
7. Grounding
8. Input phase wire
9. Enter neutral line
10. Output phase wire (110V)
11. Output zero line (110V)
12. Output phase wire (220V)
13. Output zero line (220V)

Note: For the wiring method, single-phase SVC-2kVA～5kVA, you should unscrew the fixed wiring screws on the back of the bottom plate. The cross-sectional area of the wires meets the requirements of the maximum current under load. And fully, fasten it. It is strictly forbidden to loosen the screws fixing the internal wires in the front row of the terminal board and use wires that do not meet the actual capacity.

The product dimensions are shown in Figure 6.