DV Power TRT30C Manual - Halaman 5
Jelajahi secara online atau unduh pdf Manual untuk Transformator DV Power TRT30C. DV Power TRT30C 19 halaman. Three-phase transformer, turns-ratio test instrument
Halaman CetakTRT30C
•
Wherever possible, the outer casing of the transformer under test should also be connected to a safety
earth to prevent the risk of shock. Where this cannot be achieved, adequate precautions should be
taken to prevent access to the transformer (e.g. barriers).
•
Never exchange connections to the HV and LV sides of the transformer. The "H" connections must
always be connected to the High Voltage side of the transformer. The "X" connections must always be
connected to the Low Voltage side of the transformer. Interchanging any or all of the connections may
result in damage to the transformer or the TRT30C and is a significant safety hazard to personnel.
1.2 Power Supply
•
Supply the TRT30C only from a power outlet which is equipped with the protective ground.
•
Besides being supplying the TRT30C from phase – neutral (L1-N, A-N), it may also be supplied from
phase to phase (e.g., L1-L2; A-B). However, the voltage must not exceed 264 V AC. Please refer to the
section "Technical Data".
•
The TRT30C should be positioned in such a way that it is possible to safely disconnect it from the power
supply at any moment.
WARNING / AVERTISSEMENT
This is a class A product. In a domestic environment this product may cause radio interference in which
case the user may be required to take adequate measures.
Il s'agit d'un produit de classe A. Dans un environnement domestique, ce produit peut provoquer des
interférences radio, auquel cas l'utilisateur peut être amené à prendre des mesures adéquates.
1.3 Measurement Category
The TRT30C is intended to be used for measurements in Measurement Category I (CAT I) for voltages up
to 250V. The device is also designed to withstand occasional transient overvoltage up to 1000Vpk.
WARNING / AVERTISSEMENT
This equipment is classified as measurement category I, and must not be used within measurement
category II, III and IV.
Cet équipement est classée dans la I catégorie de mesure, et ne doit pas être utilisé pendant les
catégories de mesure II ,III et IV.
1.4 Intended Use
The Three-phase Transformer Turns Ratio Tester TRT30C is designed specifically for performing
measurements on power, distribution and measurement transformers as follows:
•
turns ratio measurement,
•
phase shift measurement,
•
excitation current measurement.
These three tests are performed at the same time. The TRT30C applies test voltage to HV transformer
terminals and measures induced voltage at LV transformer terminals. The ratio of these voltages is actually
the turns ratio of a transformer. At the same time, the TRT30C measures the excitation current at the HV
transformer side, as well as the phase angle between the applied test voltage and induced voltage.
M-T030CN-203-EN
5
Introduction