Harmonic analyzer PZ96-3EH - PZ96-3EH

1.General

PZ96 Series power analyzer specializes in measuring the data of all kinds of electric networks, such as the currents, the voltages, the powers, the energies etc... It can be used for local display, or it is connected with the control equipment in measuring and controlling system. They comply EN 61326:2006 and EN 61010-1:2001.

They are a kind of programmable analyzer. With the 4 key on the front, we can set parameters, such as CT/VT ratio, baudrate etc... They have many auxiliary options, RS-485 (Modbus-RTU), analog output, D/DO and alarm, multi tariffs energies etc..
They are a kind of analyzer with excellent cost performance, They are widely being used in different kinds of control system, SCADA system and power management system.

∑P, P1,P2,P3, ∑Q, Q1,Q2,Q3,∑S, S1,S2,S3,∑PF, PF1,PF2,PF3,

MD kW, MD kvar, MD kva, +kWh, +kvarh, kvah, -kWh, -kvarh,

31 harmonics,

CF,THFF,KF,UF,UPEAK,UVECTOR,IVECTOR

3.SIZE

Panel size:96*96mm

Cut size:88*88

Depth :85mm

4. Power Quality Parameters Explanation

- CREST FACTOR: The Crest Factor is equal to the peak amplitude of a waveform divided by the RMS value. The purpose of the crest factor calculation is to give an analyst a quick idea of how much impacting is occurring in a waveform.

- THFF (Telephone Harmonic Form Factor):
The harmonic interference may cause noise in the system and inuence the quality of communication; our hearing and the telephone cannot respond well to the 50Hz current and voltage but can respond better to about 1KHz current and voltage. In Europe, CCITT detects harmonic interference to telecom with Pn, then gures it with THFF. It is 0 with no harmonic.
K-factor is a weighting of the harmonic load currents according to their effects on transformer heating, as derived from ANSI/IEEE C57.110. A K-factor of 1.0 indicates a linear load (no harmonics). The higher the K-factor, the greater the harmonic heating effects.

- UNBAL FACTOR: (Unbalance factor)
To look at the current and voltage unbalance factor. In a 3-phase distribution, if the current or voltage RMS are not the same or the dierence between a 3 phase angle is not 120 degrees, we call the phase voltages or current unbalance. The unbalance voltage or current of 3-phase can be divided into positive component, negative component and zero component.

- V PEAK: (The Peak Voltage)
Peak voltage is the highest level of volts from an alternating current. For example, in the UK the mains supply to a house is 230RMS. 230 volts is the average (simplied) you will get from the AC supply. But in reality the AC wave switches between -320 and 320 volts. So 320 is the peak voltage.

- V VECTOR: (The voltage vector)
Widely-used in European standards, the first definition originates from the theory of Symmetrical Components which mathematically breaks down an unbalanced system into three balanced systems.

- I VECTOR: (The current vector)
To look at the positive component, negative component and zero component.
The Screen displays: +I1, -I2, N.