2823-REF
High-Precision tan  / Power factor Measuring Instrument

The 2823-REF High Precision tan δ / power factor
measuring instrument is designed for measurement ofvery low dielectric losses of high-voltage apparatus.

FEATURESHAEFELY HIPOTRONICS, the pioneer in high voltage
testing since 1904, has been continuously developingand improving this product line since the first manual
measuring bridge Tettex type-2801 was introduced in1963.

 Compact, reliable and EMC hardened design, IP50

Tettex brand, a part of Haefely Hipotronics, is worldwide recognized for the accuracy and reliability of ourmeasuring instruments. The new 2823-REF belongs toour new generation of measuring instruments, which
includes a perfect combination of more than 50 years
experience in this field together with state of the arttechnologies.

 Industrial measuring and fiber optic connectors

 High accuracy: capacitance 0.02 % , tan  1 x 10-5

 Optically decoupled from computer Up to 15 A input current with auto-range
 Extremely low input impedance Mains powered

BENEFITS

The use of an optically decoupled connection allows
complete galvanic isolation between control room andtest field, and guarantees highest safety level of testpersonnel.

The galvanic isolation fully ensures safety of thepersonnel. With the 2823, there is no electricalconnection between the control room and the highvoltage test room

Additional information about this device can be foundin our web page, www.haefely-hipotronics.com

Simple connection to test objects without external
shunts or hardware reconnections due to the high input
current range
Increased linearity and extended frequency measuring
range up to 1 kHz.
Backwards compatible with older instruments andcabling, same connectors used for over 40 years.
Turn key solution from one supplier possible(including power supplies, standard capacitors, current
comparators, test cells, certified calibration…).
Connect and forget, No battery pack or rechargeneeded.

APPLICATIONS
Routine and type tests of:Power Cables & Accessories
Shunt Reactors losses
Capacitors
Instrument Transformers
Bushings & isolators
Others:Metrology Institutes
Research & Development

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technical specifications
Measurement
Dissipation Factor (tan ) (1)Power Factor (cos ) (1)Capacitance (2)Inductance (2)Test Voltage
Test Current @ Input Cn (2)Test Current @ Input Cx (2)Test Frequency
Apparent Power S (2)Real Power P (2)Reactive Power Q (2)(1) valid for temperature

Range
0 .. 1000 .. 1
 0.01 pF
 1000 kH>5V
10 uA .. 300 mA
10 uA .. 15 A
15 .. 1000 Hz
 1 mVA 1 mW 1 mVAr

5 .. 45°C

HardwareMeasuring Channels
Link 2823 to Media Box
Link Media Box to Controller
Controller
SoftwareController requirements
Measuring time
Data format
Recorded values

Max. Resolution
1 x 10-6
1 x 10-60.001 pF
0.1 mH
1V0.1 nA
0.1 nA
0.01 Hz
0.1 mVA
0.1 mW
0.1 mVAr(2) valid for reference conditions 23°C ±5°C

Accuracy± 0.1% RD ± 1 x 10-5± 0.1% RD ± 1 x 10-5± 0.02% RD ± 0.01 pF± 0.1% RD ± 0.3 mH± 0.2 % RD ± 1 V± 0.05% RD ± 0.05 nA± 0.05% RD ± 0.05 nA± 0.1% RD ± 0.02 Hz± 0.3% RD ± 1 mVA± 0.3% RD ± 1 mW
± 0.3% RD ± 1 mvar
50/60 Hz

2 (CN & CX)
Fiber optic cable with rugged HARTING connectors, Han3A-gw-M20, SC type, IP44
USB 2.0
External Computer (not included)Intel Core i3® / AMD Athlon II X2® or better, 1 GB RAM, Microsoft Windows 7 or 10.
1 x USB 2.0 port free
0.3 s / measurement
XML & CSVDF (tan), DF (tan)@20°C , DF (tan) [%], DF (tan) [%]@20°C ,PF (cos), PF (cos)@20°C , PF (cos) [%], PF (cos) [%] @20°C ,QF (quality factor), QF (quality factor)@20°C ,CP (ZX= CP RP), RP (ZX= CP RP), CS (ZX= CS + RS), RS (ZX= CS + RS), Cn (Standard Capacitor Value),
LS (ZX= LS + RS), RS (ZX= LS + RS), LP (ZX= LP RP), RP (ZX= LP RP),URMS, U/ 3,U/ 2 , Ix RMS, In RMS, Im, Ife,
Impedance Zx, Phase-angle  (Zx), Admittance Yx, FrequencyTest, FrequencyLine,
Apparent Power S, Real Power P, Reactive Power Q, Real Power@2.5kV, Real Power@10kV,

Mains Power Supply
VoltagePowerFrequency

90 .. 264 V AC
50 VA
50 / 60 Hz

Environmental
Operating temperature
Storage temperature
Humidity

0°C +55°C-20°C +70°C
5 .. 90% r.h. , non-condensing

MechanicalProtection ClassDimensions (W x D x H)
WeightVibration Tests

IP 50345 mm x 360 mm x 130 mm
7.2 kg
IEC60068-2-64 Spec A1 Transportation a1

Configurations, accessories and options in the 2823 leaflet available at www.haefely-hipotronics.com

OFFICES:
EuropeHaefely Test AG
Birsstrasse 3004052 Basel
Switzerland
 + 41 61 373 4111
 + 41 61 373 4912
 sales@haefely.com

China
Haefely Test AG Representative Beijing Office8-1-602, Fortune Street
No. 67, Chaoyang Road, Chaoyang District
Beijing, China 100025
 + 86 10 8578 8099
 + 86 10 8578 9908
 sales@haefely.com.cn

North America
Hipotronics, Inc.
1650 Route 22 NBrewster, NY 10509
United States + 1 845 279 3644
 + 1 845 279 2467
sales@hipotronics.com

HAEFELY HIPOTRONICS has a policy of continuous product improvement. Therefore we reserve the right to change design and specification without notice.
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