This series of three-phase AC parameter voltage regulator is designed to stabilize the 380V three-phase AC voltage, when the external voltage is unstable, it can provide stable 380V voltage. All places that need stable 380V three-phase AC power supply, such as precision electromechanical, electronic appliances, instruments and meters, calibrated three-phase electrical equipment, electronic computers, three-phase electrical control equipment, medical instruments, etc., can be used. This series of voltage regulator can simultaneously output stable 380V, 220V line and phase voltage for users to use, and has a single-phase AC parameter regulator all the good performance.
Second, the working principle
This series of voltage regulator adopts the working principle of AC parameter regulator, the structure of special A, B, C three-phase magnetic flux has a complementary role, respectively, to A, B, C three-phase voltage stabilization, so that the A, B, C three-phase voltage in the rated range of stabilization, to reach a stable 220 V. Thus, it makes it the output of the line voltage for the stability of the 380V.
Three, the main technical indicators
1, the rated output capacity: 1.5KVA, 3KVA, 6KVA, 7.5KVA, 10KVA, 15KVA, 20 KVA, 30 KVA, 50 KVA, 75 KVA, 100 KVA, 150 KVA, 200 KVA.
2, the rated output voltage: 380V±2% and 220V±2%.
3, power frequency: 50Hz.
4, said input voltage: 380V.
5, shape distortion: ≤ 3.5%.
6, power factor: Cos?0?3 ≥ 0.9 (when the input voltage is nominal)
7, efficiency η:
Capacity (KVA) 1.5 3 6 or more
Efficiency η% ≥ 80 ≥ 82 ≥ 83-92
8, rated voltage regulator range: line voltage 280 ~ 430V.
9, Short-time voltage stabilization range: line voltage 260~460V.
10. Voltage stabilization strain time: 20~90ms.
11. Source voltage effect:
Input line voltage 323~430V ≤2%.
Input line voltage 260~450V ≤5%.
(Input voltage division at the junction of the voltage stabilization to the lower value)
12, the load effect (no full load voltage difference):
Input line voltage 323 ~ 430V ≤ 2%.
Input line voltage 304 ~ 430V ≤ 3%.
Input line voltage 260~450V≤5%.
13, the working environment: -10 ° C to +40 ° C, relative humidity ≤ 90%, the altitude of 1,000 meters below.
14, temperature rise: ≤ 65 ° C.
15, machine noise: (A-weighted) maximum noise power level (except the exhauster fan).
Capacity (KVA) 1.5~3 6~10 15~30 40 or more
Noise dB(A) ≤60 ≤65 ≤70 ≤80
16, the source frequency effect: ≤6%.
17 output short-circuit characteristics: output short-circuit when the original square current is less than 2.5 times the rated input current, when the short-circuit disappears can automatically resume work, but the instrument is not allowed to operate in the output of a long-term short-circuit state.
18, anti-interference performance:
(1) spike suppression: normal mode input 2KV spike signal, the output ≤ 40Vp.
(2) normal mode noise suppression: ≥ 25dB (10KHz ~ 2MHz).
The above indicators are measured when the input line voltage is balanced and the output load is balanced.
19. Operating mode: continuous.
20, reliability indicators: average trouble-free working time MTBF ≥ 3000 hours.
21, safety standards:
(1) Insulation resistance ≥ 2MΩ.
(2) Insulation test voltage 1.5KV/1Min without flashover breakdown.
(3) Leakage current: ≤3.5mA (RMS).
(4) Safety category: Ι safety instruments.
(5) Protection class: IP20 class.