Megger VLF CR-40 Portable VLF Test System
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Buy Megger VLF CR-40
The Megger VLF CR-40 Portable VLF Test System is a versatile and powerful tool designed specifically for testing the insulation of medium-voltage cables and other electrical apparatus. This system is particularly well-suited for utilities, industrial plants, and service companies that require reliable testing methods to ensure the safety and longevity of their electrical infrastructure. Below is a detailed overview of the key features and benefits of the Megger VLF CR-40.
Using a 0.1 Hz cosine-rectangular voltage, weak points in the cable can be safely broken down during testing. The effectiveness of the VLF method with this voltage waveform has been validated through numerous scientific studies and practical field applications. Since the patent was granted in 1987, over 2,500 systems have been sold globally. This reliable voltage waveform is recommended by the CENELEC HD 620 and HD 621 harmonization documents, as well as the IEC 60502-2 and IEEE 400.2 standards.
Megger VLF CR- 40 Key Features
The Megger VLF CR-40 Portable VLF Test System is a versatile and efficient tool designed for testing medium-voltage cables. Here are its key features:
- VLF, DC and sheath fault testing in one device
- Portable thanks to two-part construction
- High test capacitance
- Integrated discharge system
- Reporting
Megger VLF CR- 40 Specifications
The Megger VLF CR-40 Portable VLF Test System is designed for efficient testing of 2 to 10 kV voltage range cables. Here are its key specifications:
Test voltage | |
Vlf Test Voltage | 0 to 40 kV eff |
Frequency | 0.1 Hz |
Wave Form | Cosine Rectangular |
Testing cable capacitance (at max. voltage) DC | 2.4 µF (Plus Version:4.8 µF) |
0 to -40 kV (Plus Version:0 to ±40 kV) | |
Output current measurement | 0 to 7 mA |
Sheath testing | 2 to 10 kV |
Sheath pinpointing | |
Test voltage | 2 to 10 kV |
Pulse rate | 1:3, 1:4 or 1:9 |
Weight | 55 + 48 kg |
Purchasing a Megger VLF CR-40 cable tester is an excellent decision for anyone requiring precise and trustworthy measurement. instruments.
specifications
Specification | VLF CR-40 kV |
VLF Output Voltage (kVrms) | 0 … 40 |
Resolution (kV) | 0.1 |
Accuracy (%) | 3 |
Leakage Current Measurement (mA) | 0 … 7 |
Resolution (μA) | 10 |
Accuracy (%) | 3 |
Voltage Wave Shape | Cosine-rectangular |
Frequency (Hz) | 0.1 |
Testable Cable Capacitance (μF/kVrms) | 4.8 / 40 |
DC Output Voltage (kV) | 0 … ± 40 |
DC Leakage Current Measurement (mA) | 0 … 7 |
Discharge System | Integrated |
Input Voltage (V, Hz, VA) | 110/230, 50/60, 300 |
Sheath Testing / Fault Pinpointing (kV) | 2 … 10 |
Operating Temperature (°C) | – 20 … + 40 |
Weight (kg) | Approx. 55 + 48 |
Dimensions (W x H x D, mm) | 550 x 1100 x 420 |