Өнімге кіріспе
This Integrated CT PT Field Calibration Tester measures current/voltage transformer ratios (1%-200%) and phase differences in compliance with national standards, while also supporting direct transformer ratio and polarity tests. Featuring automatic linear-adjustment DC/AC power supply, advanced digital processing, and a stable measurement circuit, it ensures exceptional accuracy and reliability. The user-friendly 800×600 LCD touchscreen with WINCE system offers intuitive English operation, wiring guidance, and data storage, making it ideal for field and laboratory transformer testing.
Өнімнің ерекшеліктері:
1、Integrated Solution
Employs small-signal measurement technology for complete CT/PT error testing
Eliminates need for external standard transformers, boosters, or load boxes
Built-in 0.02-class reference standard (equivalent to 0.05S-class accuracy)
2、Advanced Testing Capabilities
Wide measurement range: 1%-200% (including S-class CTs)
Measures ratio/phase errors at any load point (upper/lower limits)
Automatic polarity/ratio detection for known & unknown transformers
Complies with national standards for VT testing (20%-120% range)
3、Smart Operation
800×600 LCD with full Chinese interface
Auto-wiring detection with error alerts
On-site data storage & USB data export
Shock-resistant casing (weight <6kg; 472×355×168mm)
4、Efficient Workflow
Near-power-frequency testing minimizes interference
Instant pass/fail determination
One-click report generation per national standards
Қолданбалар:
1. Substations
Used for on-site testing and calibration of CTs and PTs in substations, capable of performing tests on parameters such as ratio, ratio error, phase error, and polarity, meeting requirements for equipment installation acceptance, operation and maintenance, and periodic testing.
2. Power plants
Used for performance testing of CTs and PTs in power plants and step-up substations, helping personnel quickly confirm whether transformer parameters meet operational and metering requirements.
3. Power operation and maintenance
Suitable for routine maintenance, overhaul, and fault diagnosis of power equipment. Can quickly test key parameters of transformers, improving on-site testing and fault diagnosis efficiency.
4. Power metering
Used for verification of CTs and PTs in energy metering systems, testing transformer ratio and error to ensure accurate and reliable operation of metering devices.
5. Transformer manufacturing
Suitable for product testing and factory inspection in CT/PT manufacturing enterprises, testing transformer ratio, error, phase, polarity, and other performance parameters.
6. Testing and metrology organizations
Suitable for power laboratories, metrology organizations, and third-party testing institutions, can be used for standard and non-standard transformer testing, parameter identification, and test data recording.
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Өнім параметрлері
(1)
| CT ratio range | 5A/5A~25000A/5A (5A/1A~5000A/1A) turn ratio error ± 0.2% |
| Error measurement range | 5A/5A～5000A/5A（5A/1A～5000A/1A） |
| Accuracy range of the tested current transformer | 1.0, 0.5, 0.5S, 0.2, and 0.2S |
| CT error accuracy | 0.02 level |
(2)
| PT ratio range | Full range measurement (electromagnetic type) ± 0.2% |
| Error measurement range | Primary voltage:3-220kV/(non-standard primary voltage is also acceptable) Secondary voltage: 3kV/100V、3kV//100V/；6kV/100V、6kV//100V/；6.3kV/100V、 6.3kV//100v/；10kV/100V、10kV//100V/；10.5kV/100V、10.5kV//100V/；13.8kV/100V、13.8kV//100V/；15kV/100V、15kV//100v/；15.75kV/100V 、15.75kV//100V/；18kV/100V、18kV//100V/ ；20kV/100v、 20kV//100v/；35kV/100V、35kV//100V/；66kV//100v/； 110kV//100V/；220kV//100V/ |
| Power factor | 0.0-1.0 |
| PT error accuracy | 0.05 level |
| Тұрақты ток кедергісі | 0.0-0.1 Ω ± 3% |
| 0.1-50Ω ±1% | |
| Қоршаған орта температурасы | 0-40℃ |
| Power consumption of the whole machine | 30W (static) and 150W (working) |
| Қоршаған орта температурасы | 0-40℃ |
| Қоршаған ортаның ылғалдылығы | <85% at 25℃ |
| Whole machine weight | 6.0Kg |
| Whole machine volume | 472mm × 355mm × 168mm |
Frequently Asked Questions
Q: What types of CTs can the integrated CT/PT on-site calibrator test?
A: It supports testing of CTs with various accuracy classes, including 1.0, 0.5, 0.5S, 0.2, and 0.2S, making it suitable for different power metering and testing scenarios.
Q: Does the integrated CT/PT on-site calibrator require connection to a burden box?
A: The device features an integrated design that reduces dependence on external test equipment, thereby simplifying on-site test wiring and operation procedures.
Q: What is the biggest advantage of the integrated CT/PT on-site calibrator?
A: Its main advantages are integration, portability, and simple operation. By integrating multiple CT/PT testing functions into a single device, it effectively reduces the number of on-site equipment items and wiring work, improving testing efficiency.
Q: Can the integrated CT/PT on-site calibrator test CTs with large ratios?
A: Yes. The device has a wide CT ratio test range, covering up to 25000A/5A, and can meet the testing requirements of CTs with various capacities.
