Low Voltage VT & AVR & CT & PT
Automatic AC Voltage Regulators
2. Type designation
TN□1 -□/□
Cooling type. AN means: convective cooling
(AN will be omitted in model description);
AF means: draw out the hot-air with fan or
blow on the product direct.
Rated capacity of regulator (kVA)
Design serial number
D: single-phase, S: three-phase
Automatic voltage regulator
(high precise automatic AC voltage regulator)
TND1 Single-phase Automatic
AC Voltage Regulator
TNS1 Three-phase Automatic
AC Voltage Regulator 3. Operating conditions
1. General 3.1 Ambient temperature: -5℃~+40℃.
1.1 Application: 3.2 Relative humidity ≤90%(at +20℃).
TND1/TNS1 series full-automatic AC voltage 3.3 Altitude: ≤2000m.
regulator collects sample and amplifies it 3.4 Working environment: Indoors,
and automaticly control circuit, and drives the be free from chemical deposition, dirt,
servomotor to rotate the rocker arm and brush in harmful corrosive medium, or flammable or explosive gas.
required direction, and finally adjusts the output
voltage to the rated value,
finally reaches the aim of stabilizing the voltage.
It can be widely used in areas,
where the mains voltage often comes across sharp
fluctuation or sharp seasonal variation,
such as industrial production, scientific research
medical treatment & hygiene,
household electrical appliances,
it can provide any loads with excellent power supply.
1.2 Features: Elegant appearance, compact structure,
light weight, low power waste,
complete protection functions, stable and reliable,
low output waveform distortion and so on.
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Low Voltage VT & AVR & CT & PT
Automatic AC Voltage Regulators
4. Technical data
Model TND1 TNS1
No. of phase single three
Input voltage (V) 160V~250V 280V~430V(3-phase, 4-lines)
Output voltage (V) 220V±4% 380V±4%(3-phase, 4-lines)
Frequency (Hz) 50-60
Adjusting time(s) ≤3s when the input voltage changes within the range of 20V
harmonic distortion No additional distortion
Output over-voltage protection setting value 246±4V Phase voltage 246±4V
Output under-voltage protection setting value 180±8V Phase voltage 180±8V
5. Features
5.1 Output capacity Fig. 1
P————— Outp ut capacity
The relation between output capacity and input voltage P/Pe Pe———— Rate d o utp ut capacity
refer to as fig. 1
When input voltage less than 198V, the output capacity of product 100%
will decrease, the working capacity of stabilizer shall come down;
when you choose output voltage of 110V, the out put capacity
shall be not more than 60% rated capacity,to prevent overload. 60%
5.2 Overload capacity
The stabilizer is not allowed for working overloading long time,
when the input phase voltage fluctuate In put vo ltag e V
within 198V ~ 250V (line voltage from 342V ~ 430V), 160 198 250 Phase volta ge
at emergent case, it is allowed towork as specified in sheet 1. 280 342 430 Time volta ge
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Low Voltage VT & AVR & CT & PT
Automatic AC Voltage Regulators
6. Overall dimensions and weights
Phase Weight Gross
Model & Spec. Overall dimensions (mm) Packing dimensions (mm) Pcs
number (kg) weight (kg)
TND1-0.5 195×205×150 235×215×175 1 4.5 4.8
TND1-1 215×240×170 260×250×200 1 6.1 6.5
TND1-1.5 215×240×170 260×250×200 1 6.5 7
TND1-2 225×290×220 330×260×260 1 8.5 9
Single- TND1-3 245×305×240 360×300×270 1 12.5 13
phase TND1-5 225×350×285 385×265×310 1 16.5 17
TND1-10/AF(vertical) 285×320×520 390×410×610 1 38.5 47
TND1-10(horizontal) 245×430×375 310×475×410 1 33 35.5
TND1-15/AF 325×430×620 415×550×720 1 58.5 68.5
TND1-20/AF 325×430×620 415×550×720 1 71.5 81.5
TND1-30/AF 402×735×803 510×830×965 1 140 156
TNS1-1.5 490×325×160 525×375×200 1 16 16.5
TNS1-3 490×325×160 525×375×200 1 19.5 20
TNS1-4.5 490×325×160 525×375×200 1 21.5 22
TNS1-6 275×355×620 335×405×680 1 33.5 37
Three- TNS1-9 330×360×730 385×410×780 1 46 50
phase TNS1-15 330×420×840 415×550×930 1 60.5 66
TNS1-20 480×465×930 590×580×1020 1 110 126
TNS1-30/AF 480×465×930 590×580×1020 1 115 131
TNS1-45/AF 480×790×1055 600×850×1200 1 191 213
TNS1-60/AF 480×790×1055 600×850×1200 1 230 250
7. Ordering information
a. Input and output of three-phase products of this series are of three-phase four-wire connected,
please wire them with neutral line before using.
Example of type selection: Three-phase motor 2.2kW 1pcs, 5.5kW 1pcs, when selecting the voltage regulator,
its capacity should be ≥(2.2kW+5.5kW)×2.5=19.25kVA, so,
the selected product should be three-phase SVC-20kVA at least.
b. When the three-phase voltage regalator is applied to single-phase or three-phase ,
max capacity of each phase should be one third of rated capacity.
c. When the input phase voltage is lower than 198V, the output capacity of voltage regulator will be reduced,
then the loads should be reduced correspondingly, otherwise, it may be overloaded; when the output voltage is 110V,
then the output capacity should not be beyond 50% of rated capacity, otherwise, it may be overloaded.
Please refer to fig.1 for detail characters.
Sheet 1 Safe consult coefficient of choosing regulator capacity
Load kind Consumer samples Safe coefficient Chosen capacity rate
Incandescent lamp,
＞1.1~1.3 times of
Complete resistive loads resistant coil, electric 1.1~1.3
total rated capacity
cooker
Fluorescent lamp, fan,
＞2.5~3 times of
Inductive, capacitive loads pump, air-conditioner, 2.5~3
total rated capacity
refrigerator and etc.
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