The High Precision tan d / dissipation factor measuring instrument is designed for measurement of very low dielectric losses of high-voltage apparatus. HAEFELY the pioneer in high voltage testing since 1904, has been continuously developing and improving this product line since the first manual measuring bridge Tettex type-2801 was introduced in 1963.

Tettex brand, a part of Haefely, is recognized world-wide for the accuracy and reliability of our measuring instruments.
The 2823 belongs to our new generation of measuring instruments, which is a perfect combination of more than 50 years experience in this field together with state of the art technologies.

The use of optically decoupled connection allows complete galvanic isolation between control room and test field, and guarantees operating personnel the highest safety level.

Advantages

Built to be located the HV laboratory attached to the nominal capacitor, which increases safety and reduces connecting time.
The galvanic isolation ensures full safety of the personnel. With the IDAS 2823, there is no electrical connection between the control room and the high voltage test field.
Simple connection to test objects without external shunts and no need for a hardware reconnection due to the high input current range
Increased linearity and extended frequency measuring range up to 1 kHz.
Backward compatible with older instruments and cabling, same connectors used for over 40 years.
Connect and forget, no battery pack or recharge needed.
Best device for routine or type test for oil or dry isolated components (IDAS 2823) or for reference laboratories or special applications like cables or shunt reactor losses measurement (IDAS 2823-REF).
Turnkey solution from one supplier including standard capacitors, current comparators, test cells, certified calibration, etc.

Applications

Routine and type test of:

• Shunt Reactors losses
• Power and distribution transformers
• Capacitors
• Instrument Transformers
• Bushings & Isolators
• Metrology Institutes
• Research & Development