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Products Infomation

One Device for Measuring Key Parameters of Transformer Products, Measurement Frequency Range 10Hz-500kHz
MICROTEST 5466 Transformer Tester is an all-in-one device designed for measuring important parameters of transformer products. It enables measurements of parameters such as inductance, leakage inductance, DC resistance, AC resistance, quality factor, capacitance, turns ratio, and pin short circuit detection. The measurement frequency range spans from 10Hz to 500kHz. The tester is equipped with built-in support for LCR meter measurement mode and comes with the F5468 pneumatic testing fixture. It provides 48 testing channels and supports 100mA DC bias testing. Customization services are available to tailor the tester to meet specific customer requirements.
Transformer Tester
Model:
5466
Maker:
MICROTEST
All-In-One Low Voltage Electrical Test
Inductance (L)/Leakage Inductance/Turn Ratio/Resistance (DCR)/Resistance (R)/Balance/Capacitance (C)/Short Circuit.
Automatic Balancing Bridge & 4-Wire DCR Test (DC Resistance)
Check if the winding tension is improper for Transformer.
Turns ratio is an important parameter in transformer.
Ideally, we can get the turns ratio by compare the input and output voltage. However, there are many parameters that might affect. So, there are some different ways to detect turns ratio.
TR Voltage | Put a AC voltage on primary coil, and detect the voltage on secondary coil. Compare the turns ratio and phase |
TRL Inductance | Detect the inductance on each coil, and calculate the turns ratio. The turns ratio is more accurate on transformer with bigger leakage inductance. |
Features
- Test Frequency: 10Hz-500kHz
- 48 Channels
- Built-in Meter Mode
- Simultaneously display four parameters
- Basic accuracy up to ±0.1%
- Open circuit/short circuit function
- RS-232、Handler、LAN、USB Host 、Handler
- Pneumatic fixture F5620 built-in 100mA DC Bias
- USB Host storages can storage setting files, data and capture the screen
Application
Detect capacitance to make sure the insulation between winding position and winding coil is enough
- The winding coil on the transformer include distributed capacitance, it usually distribute between winding coil.
- Capacitance is usually represented by the capacitance by one winding to another winding in an equivalent circuit.
- Cs and Cp is an equivalent capacitance in series or parallel in equivalent circuit.
- D value is the ratio with AC resistance and capacitance, The lower the D value, is better.
Test leakage by LCR balance bridge
When the instrument connect a primary coil with the transformer and the secondary coil is under open status, the test result L= Lp on primary coil + Leakage Current.
→The leakage inside the instrument must short the secondary coil in the transformer.
A ideal secondary coil’s voltage will be 0V in short status. The voltage on both side of primary coil will be 0V. The inductance from primary coil will be the real leakage current.
Offer 100mA DC Bias Current to fulfill Netcom transformer product.
The purpose of detect DC bias is to make sure the specification of coil winding and magnetic saturation.
- _The way we detect is put DC signal on AC signal. The DC signal will cause DC bias on inductance of the transformer. It might also cause magnetic saturation on transformer.
- _Increase inductance by high magnetic conductivity and decrease the turns to minimize the size and raise the efficiency for inductance magnetic coil transformer. Because of the restriction of the permeability material, magnetic flux can’t be unlimited increasing. When it reach the limited, no matter increase the turns or current, the magnetic flux won’t increase. Meanwhile, it will meet the magnetic saturation especially under DC current. The AC current will not cause any change in magnetic flux. The transformer will loose the inductance feature.
The harm of magnetic saturation
- _The magnetic saturated transformer will overheat under low voltage and cause damage by time.
- _It may cause explosion under high voltage.
- _The inductance of primary winding will obliviously decrease on saturated transformer. Meanwhile, the power consumption on DCR and inner MOSEFT will increase rapidly. This may cause the damage on MOSEFT.
Detecting Essential Electrical Parameters of Transformers
Specifications
5465/5466/5467 | |
5465 | 10Hz-200kHz |
5466 | 10Hz-500kHz |
5467 | 10Hz-1MHz |
Model | 5465/5466/5467 |
Test Channel | 48 |
Frequency Resolution | 5 digits |
Basic Accuracy | ±0.1% |
AC Drive Level | 10mV-2Vrms |
DC Drive Level | 10mV-2V |
Output Impedance | 100Ω |
DC Bias Current | 100mA (F5620) |
Turn | Inductance or Voltage
Test Freqeuncy:50Hz-200kHz |
Test Mode | Meter Mode / List Mode |
Parameters Measurement | Inductance (L)、Impedance (Z)
Capacitance (C)、Resistance (R) Conductance (G)、Susceptance (B) Admittance (Y) Alternating Current Resistance (ACR)Quality Factor (Q)、θ Direct Current Resistance (DCR) Leakage Inductance Turn Ratio、Balance、Short Circuit |
Parameters | Range (AC parameter:1kHz) |
L, LK | 0.1nH ~ 9999.99H
Basic Accuracy 0.10% Speed 25ms |
C | 0.00001pF ~ 999.99mF
Basic Accuracy 0.10% Speed 25ms |
Q,D | 0.00001 ~ 99999
Basic Accuracy 0.0005 Speed 25ms |
Z,X,R | 0.00001Ω ~ 99.9999MΩ
Basic Accuracy 0.10% Speed 25ms |
Y | 0.01nS ~ 99.9999S
Basic Accuracy 0.1% Speed 25ms |
θ | -180°~ +180°
Basic Accuracy 0.03° Speed 25ms |
DCR | 0.1mΩ ~ 99.999 MΩ
Basic Accuracy 0.10% Speed 25ms |
Turn | 0.1 ~ 99999.9 turns
Basic Accuracy 0.50% Speed 50ms |
Pin-Short | 12 pairs, between pin to pin
Speed 15ms |
ESR | Series / Parallel |
Calibration | Open Circuit / Short Circuit |
Built-in stroage | testing files 128 sets |
Operation | Auto / Manual / Remote Trigger |
Power Supply | Voltage:98Vac-132Vac or
195Vac-264Vac |
Frequency:47-63Hz | |
Power consumption | 300VA |
Environment | Temperature:10℃-40℃ |
Humidity:10-90%RH | |
Dimension (W*H*D) | 344x145x343 mm (W*H*D) |
Weight | 9 Kg |
Interface | RS-232、Handler、LAN、USB Host
EXT. I/O |
Display | 800*480 Color Screen, 7″ TFT |