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Instrument Transformer Test Equipment

The Tettex instrument transformer test equipment is a complete product line for high precision measurement of different kinds of current instrument transformers (CTs) and voltage instrument transformers (VTs) according to IEC and ANSI standards.
This test equipment can be used for type tests, production testing, maintenance testing (on site) and repair.
Our product range covers measuring instruments, software, standard current comparators, standard voltage dividers, burdens and power supplies.

2763, 2767, 2769

[ Automatic instrument transformer test set ]

The well know 2767 is an automatic instrument for fast and accurate measurement of current (CTs) and voltage instrument transformers (VTs) . The instrument works with the differential measurement method (bridge).
The robust, well proven user interface design as well as the absolute reliability made this instrument over the time a quasi standard with worldwide more than 800 units sold.
Type 2767 is a combined test set for current and voltage instrument transformers, type 2763 is for current instrument transformers only and type 2769 is the voltage transformer test set version.

product brochure

3691, 3692

[ Programmable electronic current burden ]

The 3691 is a universal high accurate current burden for standard current ratings with freely adjustable power steps up to 75 VA. With the additional burden extension type 3692 the power range is expandable up to 200VA.
This programmable current burden unit is ideal for integration with the 2767 or 2763 test set in a full remote controlled instrument current transformer test system.

3695, 3697

[ Programmable electronic voltage burden ]

The 3695 is a universal high accurate voltage burden for standard current ratings with freely adjustable power steps up to 75 VA. With the additional burden extension type 3697 the power range is expandable up to 400VA.
This programmable voltage burden unit is ideal for integration with the 2767 or 2769 test set in a full remote controlled instrument voltage transformer test system.

3600 series

[ Passive standard current and voltage burdens ]

The 3600 series of passive burdens are used as an artificial load for current and voltage transformer measurements together with the 2767 instrument transformer test set.
The load adjustment is manual and a wide range of load types are available.

product brochure

4761, 4764

[ Standard current transformers (comparators) ]

The 4761 and 4764 high precision standard current comparators are used as comparison standard in the differential method (bridge) measurement of current instrument transformers together with the measuring instruments type2763 and 2767.
The special active flux compensated design of these comparators results in negligible current errors.
These units can also be used as current measuring range extension for C and tand measuring equipment.

product brochure

4860

[ Standard electronic voltage divider ]

The 4860 series (control unit and capacitive HV divider with compressed gas and air caps) high precision standard voltage divider is used as a variable comparison standard in the differential method (bridge) measurement of high voltage instrument transformers.
The special active guard controlled design of this divider set results in highest accuracy.
This standard voltage divider is ideal for integration with the 2767 or 2769 test set in a full remote controlled instrument voltage transformer test system.

product brochure

5260 series

[ Current Supply ]

The 5260 series current supplies are usually designed and engineered to customer specification.

5270 series

[ Voltage Supply ]

The 5270 series voltage supplies are usually designed and engineered to customer specification.

Software and Automation

[ System integration and automation solutions ]

Different software packages are available.
From a simple data download to PC version up to advanced test floor automation software to create complete test systems for instrument transformer testing.