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Transformer Induction Voltage Analyzer

For transformer industry; professional equipment to test the vertical insulation performance; adopts fast identification to simulate non-destructive testing; no damage to transformer

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The Transformer Induction Voltage Analyzer is mainly used in transformer industry.

In addition to the main insulation of the transformer, that is, the insulation between the windings and between the winding and the iron core, the transformer has another important insulation performance index - vertical insulation. Vertical insulation means the insulation of transformer windings at different points and parts with different potentials, including turn-to-turn, between the layers and between the segments. The "Induction voltage test" in national standards and International Electrotechnical Commission (IEC) standard is one of the test methods to test the vertical insulation of the transformer.

Ainuo AN968 Series Transformer Induction Voltage Analyzer is a professional equipment to test the vertical insulation performance of the transformer, using multi unique and international leading technologies with excellent high-precision active power measurement, to effectively used for determination of interturn short circuit in some microelectronics transformers.

In micro-electronic transformers, due to high number of turns (more than a few thousand) and thin wire (enameled wire diameter of 0.1mm or less), for several or dozens of turns of short circuit, compared with normal transformers, the test current under doubling frequency doubling voltage changes less, while the change to active power is obviously (the change is generally about 50% for 10 turns short circuit).

Experiments show that in case there is interturn short circuit, the power factor of the transformer changes greatly, the active power changes greatly, so it can be used as an auxiliary test means to more accurately judge the performance of the transformer.

Current, power and power can be used to identify the inter-turn short circuit of the transformer. Power measurement is the best basis for determination. AN968 analyzer adopts fast identification to simulate non-destructive testing, no damage to the tested transformer, to ensure accurate testing, high efficiency, ideal for labs and transformer line.

Specification of AN96810

Model AN96810
Capacity 1200VA
AC input Number of phases Single-phase two-wire + PE
Voltage 220V±22V
Frequency 50Hz±2.5Hz
Output Number of phases Three-phase sine wave output
Voltage 200~1200V
Frequency 50~600Hz
Rated current 1A
Setting accuracy Voltage Resolution: 0.1V Accuracy: ± (1%× reading +0.2%× Full scale)
Frequency Resolution: 0.1Hz  Accuracy: ±0.1%
Measurement accuracy Voltage Resolution: 0.1V Accuracy: ± (1%× reading +0.2%× Full scale)
Frequency Resolution: 0.1Hz  Accuracy: ±0.1%
Current Imax=1000mA
5.0-20.0 mA;   21.0-200.0 mA     201-1000 mA; 
 ±(1.5% x reading +0.5% x scale)
Power 0.03W-20.00W  20.0W-1200.0W
10% of low voltage range and above & 1.0 mA current output and above:
0.03W-20.00W  20.0W-1200.0W
±(1.5% x reading +0.5% x scale)
Frequency stability ≤0.1%
Voltage distortion 200V-400V: ≤5%; 400V and aobve: ≤3%; (resistive load)
Transient recovery time 20ms
Source voltage effect 1%
Load effect 1%
Machine zero load power consumption <120W
Protection Short circuit, overload, power device overheat, current/power overlimit
Function Display VFD display
Online regulation Press Increase or Decrease in Run state to adjust the output voltage/frequency
Memory Previous start parameter
Communication ports RS232 port (optional RS485 port)
Remote control Optional remote control port, analog control interface
Working environment Temp. 0~40℃
Humidity 20%~90%RH
Dimension  W×H×D(mm) 483×200×500
Weight (Kg) 35kg

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