CTTx2 & CTTx5 - Winding Resistor Tester
1 / 2Pages

Current Transformer Testers The CTTx2 & CTTx5 are rugged and easy to use current transformer testers, that offer automatic & manual testing modes. These instruments are designed to deliver fast and reliable measurements. COMPETITIVE ADVANTAGES High resolution color display All tests are performed in automatic sequence without the need for operator intervention Rugged design to meet the most demanding field testing environments Large internal memory Full QWERTY keypad for easy data entry OPERATION The CTT will test the Current Transformer Ratio, Phase shift, Polarity, Excitation, Saturation, Winding resistance and Insulation resistance using the voltage method in compliance with ANSI/IEEE C57.13.1 & IEC 600441 standards, where voltage is applied to the secondary X terminals of the current transformer. The CTT burden test injects a current into the secondary loop to verify the integrity of the current circuit and to determine its impedance & VA. This information is required to insure the CT will perform under all circumstances. The CTT can also test the ratio, polarity, phase shift, winding resistance & insulation resistance of voltage transformers. CTTx5, CT tester instrument HIGHLIGHTS • High resolution color display allows operator to create and save repeatable test plans. • All tests are performed in automatic sequence without the need for operator intervention. • Rugged design to meet the most demanding field testing environments. • Large internal memory (200 testing files where each can have of up to 10 excitation curves & 140 Test plans files). • All CT nameplate and equipment details are stored with the test result file. • Built-in thermal Printer. • Full QWERTY keyboard for easy on site data entry. • 2000 VAC saturation test voltage with knee point voltage markers (ANSI 10/50 , IEC 60044, IEEE 30 & IEEE45). • Fast full testing operation. Manual mode is available for trouble shooting and special diagnostic testing. • Burden mode makes it possible to analyze the secondary circuit connected to the CT. • Easy setup of test plans are created on the instrument. • Convenient integrated test leads storage compartment. • Automatic test report creation. • User selectable time duration for insulation resistance test (10 to 60 Sec). • Automatic demagnetization sequence. 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: mkt@ndbtech.com

TECHNICAL SPECIFICATIONS Power input Fuse rating Voltage output Voltage reading Current reading STANDARD ACCESSORIES: Measurement method Phase angle Winding resistance Insulation resistance Current source • Serial communication cable Current source display 19.999 A rms ±1% 19.999 Vrms ± 1%, 1 Mohm to 1000 ohms Data storage Up to 200 files with up to 10 excitation curves per file Test plans Multiplexer with five X inputs accommodates test on CT with up to 4 windings without disconnecting and connecting test leads during the test. 120 mm x 90 mm (4¾ x 3½ inches) bright color LCD display 40...