8 kVA 3 phase AC Automatic Voltage Stabilizer

5 out of 5 based on 3 reviews | Write a review

$2,294.26

Buy 8 kVA automatic voltage stabilizer at a cheap price, default 304V-456V AC wide input voltage (+/- 20% tolerance) and 380V output, other output voltages can be customized. LED display, IP24 level for protection, used in three three-phase four-line systems where stable voltage is required.

Output Line Voltage (L+L) *
Output Accuracy *
Input & Output Neutral Selection *
Note *

SKU: ATO-AVS-3P8K

Qty:

30-day Returns

Delivery date: 10-20 days

Overview

Fully industrial AC automatic voltage stabilizer with 8 kVA rating capacity, ±20% tolerance of input voltage range, 3 phase 380V, 415V, 480V output for selection. As highly compact and virtually maintenance-free solutions, they are perfectly suited for industrial and commercial buildings and their associated applications and processes.

8 kVA Voltage Stabilizer Specifications

Model Number	ATO-TNS/JSW-8K
Capacity	8 kVA (The power capacity of the voltage stabilizer needs to be 1.5~2 times greater than the load power)
Phase	3 Phase 4-line
Input Voltage Range	±15% tolerance for all standard output voltages above 380V. ±20% tolerance for required 380V output and all standard voltages below.
Output Voltage	3 phase 380V (Optional: 110V/ 120V/ 208V/ 220V/ 230V/ 240V/ 400V/ 415V/ 440V/ 460V/ 480V)
Output Accuracy	±2~4%/ ±1% (Optional) * In case of output accuracy of +/- 2-4%, the voltage stabilizer will be servomotor based, and in case of output accuracy of +/- 1%, the voltage stabilizer would be SCR based.
Frequency	50Hz/60Hz
Current Type	AC
Efficiency	≥95%
Response Time	≤1.5S
Ambient Temperature	-15°C~+40°C
Cooling Method	Air-cooled
Insulation Resistance	≥5MΩ
Electrical Intensity	Without breakdown and flashover phenomena at power frequency sine voltage 2000V for 1 min
Overload Capacity	Overload current (%)	Duration (min)
	20	≤60
	40	≤15
	60	≤5
Waveform Distortion	Non-lack fidelity waveform
Protection	Over-voltage, over-current, feed phases
Protection Grade	IP 24
Warranty	24 months
Certificate	ISO9001:2008, CE
Weight	120 Kg
Package Size	370x340x790 mm

3 Phase Voltage Stabilizer Schematic Diagram

Details

Tips: Using 3 3-phase 4-line voltage stabilizer or 3 phase 3-line voltage stabilizer?

3-phase 3-line voltage stabilizer: When connected, the input and output lines are all three live lines (L1, L2, L3).

3 phase 4-line voltage stabilizer: Input and output are all four lines, three for the live lines, one for the neutral line (L1, L2, L3, N).

At present, the most commonly used is the 3-phase 4-line voltage stabilizer. For the 3 phase 3-line voltage stabilizer, its application is relatively rare, except in very special equipment. If every wire in the three phase circuit is connected with the same load, and the sum of the current flowing through the neutral line at every moment is zero, it is ok to remove the neutral line and use the three phase three-line system for power supply. However, this is an ideal situation. In fact, the three-phase load formed by multiple single phase loads connected to the three phase circuit cannot be completely symmetrical. In this case, the neutral line is particularly important, not optional.

If there is no neutral line in the case of load asymmetry, an asymmetric 3 phase 3-line system power supply is formed. Due to the asymmetry of load impedance, the phase current is also asymmetric, and the voltage of the load phase is also naturally asymmetric. Some phase voltages may exceed the rated voltage of the load and the load may be damaged. Some phase voltage may be lower, the load does not work properly (light bulb dim). With the change of load impedance of each phase caused by turning on and off the light, the phase current and phase voltage will change accordingly, the light will be dimmed and brightened, and other electrical appliances will not work normally, or even be damaged. So you have to have the neutral line, the three phase four-line system.

Existing reviews of 8 kVA 3 phase AC Automatic Voltage Stabilizer

If the voltage stabilizer can handle my problem?

We have connected the voltage stabilizer but the output voltage is not giving 220V, rather a very low one as you can see on the image.
It is even giving different voltages on each phase.
Also just want to confirm that the equipment says 50Hz, but we use 60Hz. So we want to know if the equipment can handle this.
(from our experience it should not be problematic since your webpage states 50/60 Hz)

From: taran | Date: 17/07/2023

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ATO Responded

Yes, the input voltage 60Hz is compatible, in order to further solve your problem, please feedback on the following information:
1. Please use a multimeter to measure the voltage between the three phases at the input end and at the output end, and provide us with measurement pictures or videos for reference.
You can send us the large video file via wetransfer.com.
2. Open the cabinet door, find the control circuit board, and then please provide us with a clear photo for confirmation.

Overload capacity of 3-phase automatic voltage stabilizer

What are the overloading capabilities of your 3-phase automatic voltage stabilizer?

From: Josafat | Date: 30/11/2021

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ATO Responded

Overloading capabilities will be as follows:
20% overloading for less than 60 minutes.
40% overloading for less than 15 minutes.
60% overloading for less than 5 minutes.

Maximum tolerance of 8kVA three-phase AC automatic voltage stabilizer

What is the highest tolerance for your 8 kVA 3 phase AC automatic voltage stabilizier (input voltage)?

From: Matw | Date: 13/05/2021

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ATO Responded

It is +/- 30 %.

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