HFCT-20™ & HFCT-60™The HFCT™ clamps are intended to be used with the AE-150™ for partial...
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ndb Technologies inc. • 1405 St-Jean-Baptiste, office 111 • Quebec (QC) G2E 5K2 - Canada • Tel: 1(418)877-7701 Fax: 1(418)877-7787 Email: [email protected] www.ndbtech.com HFCT-20™ & HFCT-60™ High Frequency Current Transformer Clamps The HFCT-20™ and HFCT-60™ are high frequency current transformer sensors designed for partial discharge detec- tion on electric apparatus’ ground returns. Made from superior quality materials, they are made to last in any environment. The HFCT™ clamps are intended to be used with the AE-150™ for partial discharge localisation, or with the XDP-II™ (or XDP-II-LT™) for quick partial discharge detection and analysis. APPLICATIONS Measurement on power cable shields Measurement on ground connections: • Lightning arresters • Current and Voltage transformers • High power motors, alternators and power transformers OPERATION Overtime, internal electrical equipment’s insulation degrades which leads to possibility of faults. To pre- vent such situation, the HFCT™ clamps are used to measure partial discharge activity on ground returns connections. Two models are available for the user’s convenience, 20mm and 60mm. The HFCT™ clamps allow current measurement up to a frequency of 100MHz. Their chassis are made of high quality plastic, offering an excellent sturdi- ness to abrasion and mechanical impacts making it the ideal tool for on-site applications. Its exclusive internal design provides an exceptio- nal shielding to high frequency interferences from nearby electrical fields. These sensors are ideal for partial discharge measu- rements on ground returns of shielded cables. When used with portable partial discharge detection ins- truments, they allows knowing insulation integrity thus avoiding costly faults. HFCT-60™ clamp on cable joint grounding
Transcript of HFCT-20™ & HFCT-60™The HFCT™ clamps are intended to be used with the AE-150™ for partial...
ndb Technologies inc. • 1405 St-Jean-Baptiste, office 111 • Quebec (QC) G2E 5K2 - Canada • Tel: 1(418)877-7701 Fax: 1(418)877-7787 Email: [email protected]
www.ndbtech.com
HFCT-20™ & HFCT-60™High Frequency Current Transformer ClampsThe HFCT-20™ and HFCT-60™ are high frequency current transformer sensors designed for partial discharge detec-tion on electric apparatus’ ground returns. Made from superior quality materials, they are made to last in any environment. The HFCT™ clamps are intended to be used with the AE-150™ for partial discharge localisation, or with the XDP-II™ (or XDP-II-LT™) for quick partial discharge detection and analysis.
APPLICATIONS
Measurement on power cable shields
Measurement on ground connections:
• Lightning arresters
• Current and Voltage transformers
• High power motors, alternators and power transformers
OPERATION
Overtime, internal electrical equipment’s insulation degrades which leads to possibility of faults. To pre-vent such situation, the HFCT™ clamps are used to measure partial discharge activity on ground returns connections. Two models are available for the user’s convenience, 20mm and 60mm.
The HFCT™ clamps allow current measurement up to a frequency of 100MHz. Their chassis are made of high quality plastic, offering an excellent sturdi-ness to abrasion and mechanical impacts making it the ideal tool for on-site applications.
Its exclusive internal design provides an exceptio-nal shielding to high frequency interferences from nearby electrical fields.
These sensors are ideal for partial discharge measu-rements on ground returns of shielded cables. When used with portable partial discharge detection ins-truments, they allows knowing insulation integrity thus avoiding costly faults.
HFCT-60™ clamp on cable joint grounding
ndb Technologies inc. • 1405 St-Jean-Baptiste, office 111 • Quebec (QC) G2E 5K2 - Canada • Tel: 1(418)877-7701 Fax: 1(418)877-7787 Email: [email protected]
www.ndbtech.com
Transfer ratio 13V/A
Frequency Response (-3dB) 2MHz to 80 MHz
Internal Diameter 20mm
External Diameter 60mm
Output Impedance 50 ohms
Weight 260 grams
Connector type BNC
Transfer ratio 13V/A
Frequency Response (-3dB) 4MHz to 100 MHz
Internal Diameter 60 mm
External Diameter 125 mm
Output Impedance 50 ohms
Weight 530 grams
Connector type BNC
HFCT-20 TECHNICAL SPECIFICATIONS
HFCT-60 TECHNICAL SPECIFICATIONS
XDP-II™, HFCT-60 clamp & HFCT-20 clamp
AE-150™, HFCT-60 clamp & HFCT-20 clamp
