The HZZK-III Transformer Short-Circuit Impedance Tester is a new generation of transformer parameter testing equipment independently developed by our company. It is designed for low-voltage short-circuit impedance measurement of main transformers rated 35kV and above, suitable for both field and laboratory conditions.
Short-circuit impedance is an important parameter of transformers. The short-circuit impedance method is a traditional approach for assessing winding deformation. According to GB1094.5-2003 and IEC60076-5:2000, the change in short-circuit reactance is the sole criterion for determining whether a transformer winding has been deformed.
• Resist High Heat, Humidity & Salt Spray for Tropical Island Use
• Runs Stably at -40℃, Cold-Proof and Anti-Condensation
• IEC Compliant, Complete Calibration Certificates Provided
• Local Support: Spares, On-Site Training & Instrument Calibration
| Parameter | Specification |
|---|---|
| Voltage (automatic range) | 15~400V ±(readings×0.2%+3 digits) ±0.04% (range) |
| Current (automatic range) | 0.10~20A ±(readings×0.2%+3 digits) ±0.04% (range) |
| Power | COSφ > 0.15 ±(readings×0.5%+3 digits) |
| Frequency (power frequency) | 45~65 Hz; measurement range: ±0.1% |
| Short-circuit impedance | 0~100%; measurement range: ±0.5% |
| Repeatability stability | Ratio error < 0.2% |
| Instrument display | 5 digits |
| Parameter | Specification |
|---|---|
| Instrument protection current | When test current exceeds 18A, the instrument's internal relay disconnects for over-current protection |
| Ambient temperature | -10°C ~ 40°C |
| Relative humidity | ≤ 85% RH |
| Operating power | AC 220V ±10%, 50Hz ±1Hz |
| Dimensions | 380 × 260 × 120 mm |
| Weight | 4.5 kg (excluding test lines) |
Q1: Is your company a sales agent or a manufacturer?
We are an integrated trade and manufacturing company with our own factory.
Q2: Can we customize our own brand or the built-in software of the machine?
Yes, we accept OEM/ODM/OBM and can customize the built-in software of the product according to the customer's special requirements.
Q3: What is the usual lead time? How long until we receive the order after placing it?
In normal circumstances, products in stock can be received within 5 to 7 days via the fastest international express. Other situations may vary depending on the quantity of products ordered, whether there are special customization requirements, and the delivery time chosen.
Q4: How can we ensure the product will not be damaged during transportation, considering its large size?
We have professional internal and external packaging to ensure the safety and stability of the products during transportation. For fragile or other special parts, we will include an extra set to ensure that the customer can use the product immediately upon receipt.
Q5: How do you handle after-sales service? What if there is a quality problem or the customer does not know how to operate the product?
For quality issues that are not caused by human error, we provide a one-year warranty from the time the product is delivered, and lifetime technical support. Other after-sales issues will be addressed by our professional technical staff within 24 hours. The product comes with a user manual and an operation video.
