NRCTP-120P CT PT Analyzer is designed for analyzing current transformers (CT) and voltage transformers (PT) of protection or measurement use. Which is suitable for laboratory and on-site test. It’s a new generation of innovative CT, PT test equipment, which is based on the series of NRFA automatic instrument transformer tester, which already had a good reputation. This device uses high-performance DSP and ARM, with advanced manufacturing process to ensure stable and reliable performance, full-featured, high degree of automation, high efficiency test, it is the professional testing equipment of instrument transformer in the power industry.
Overview
Product Introduction
NRCTP-120P CT PT Analyzer is designed for analyzing current transformers (CT) and voltage transformers (PT) of protection or measurement use. Which is suitable for laboratory and on-site test. It’s a new generation of innovative CT PT test equipment which is based on the series of NRFA automatic instrument transformer tester which already had a good reputation. This device uses high-performance DSP and ARM with advanced manufacturing process to ensure stable and reliable performance full-featured high degree of automation high efficiency test it is the professional testing equipment of instrument transformer in the power industry.
Product Characteristics
• With full-function it not only can test the excitation characteristics (also named VA rating curve) ratio polarity secondary winding resistance secondary burden phase or angle difference for all kinds of CT (such as protective type measuring type and TP) but also can test the VA rating curve ratio polarity secondary winding resistance phase or angle difference for all kinds of PT.
• Automatically given the knee point voltage/ current 10% or 5% error curve accuracy limit factor (ALF) instrument safety factor (FS) secondary time constant (Ts) remanence factor (Kr) saturated and unsaturated inductance and other parameters of CT and PT.
• The test meets GB1208 (IEC60044-1) GB16847 (IEC60044-6) GB1207 and other types of transformer’s standards it can automatically select the suitable standards to test according to the type and level of transformer.
• based on an advanced low-frequency testing theory the knee point voltage of CT can be up to 30KV.
• Beautiful and friendly interface.
• The device can store 2000 groups of test data automatically even a sudden of brownout. For data analysis U disk can transfer to PC after testing and produce WORD reports.
• The test is simple and convenient one key to complete the DC resistance excitation ratio and polarity test of CT in addition to the load tests CT various other tests are based on the same kind of wiring method.
• Easy to carry device weight less than 9.0 kg.
Main Functions
| CT | PT |
| VA rating (excitation) curve | VA rating (excitation) curve |
| Ratio | Ratio |
| Polarity | Polarity |
| Secondary winding resistance | Secondary winding resistance |
| Secondary load | Secondary load |
| Phase (angle difference) | Phase (angle difference) |
| Knee point voltage/ current | Knee point voltage/ current |
| Given 5% and 10% error curve automatically | Given 5% and 10% error curve automatically |
| Accuracy limit factor (ALF) | Accuracy limit factor (ALF) |
| The safety factor of instrument (FS) | The safety factor of instrument (FS) |
| Secondary time constant (Ts) | Secondary time constant (Ts) |
| Remanence factor (Kr) | Remanence factor (Kr) |
| Saturated and unsaturated inductance | Saturated and unsaturated inductance |
Models
| Testing purposes | Protective CT and PT | |
| Output | 0~100Vrms 12Arms 36A (peak value) | |
| Voltage measuring accuracy | ±0.2% | |
|
CT ratio measurement |
Range | 1~10000 |
| Accuracy | ±0.2% | |
|
PT ratio measurement |
Range | 1~10000 |
| Accuracy | ±0.2% | |
| Phase measurement | Accuracy | ±5min |
| Resolution | 0.5min | |
| Secondary winding resistance measurement | Range | 0~300Ω |
| Accuracy | 2%±2mΩ | |
| AC load measurement | Range | 0~300VA |
| Accuracy | 2%±0.2VA | |
| Input power voltage | AC220V±10%，50Hz | |
| Operating Environment | Temperature: -10℃ ~ 50℃; Humidity: ≤ 90% | |
| Dimension and weight | Size: 340mm × 300mm × 150mm; weight <9kg | |
