Product Introduction
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.
Key Features:
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
Applications:
• Field calibration of metering devices
• Standard/non-standard transformer verification
• Unknown transformer parameter identification
Thông số sản phẩm
(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 |
| DC resistance | 0.0-0.1 Ω ± 3% |
| 0.1-50Ω ±1% | |
| Nhiệt độ môi trường | 0-40℃ |
| Power consumption of the whole machine | 30W (static) and 150W (working) |
| Nhiệt độ môi trường | 0-40℃ |
| Độ ẩm môi trường | <85% at 25℃ |
| Whole machine weight | 6.0Kg |
| Whole machine volume | 472mm × 355mm × 168mm |
