AC power digital display table DS3000

1 Overview

Manufacturing computer chips, digital signal processing chip, the standard communication interface, switching power supply and LED digital tube displays and other components, according to type rate factor, frequency, degree of active power, reactive power and harmonic degrees and dozens of parameters. This product can also be matching a variety of analog input / output interface and digital input / output interface can be done individually measured, measurement, monitoring, setting and other operations to remote telemetry, remote control, remote, remote transfer functions . As low-cost, high precision, small size, function and more stable performance, suitable for a variety of high low-voltage AC power occasion for accurate measurements, comprehensive analysis, remote meter reading and the focused Jian Kong.

2, functional

● simultaneous measurement and display of three-phase circuit voltage RMS (V1, V2, V3, V12, V23, V31);
● simultaneous measurement and display of three-phase circuit current rms (I1, I2, I3) and the zero sequence current (In);
● simultaneous measurement and display of three-phase circuit of active power (P1, P2, P3) and three-phase total active power (P);
● simultaneous measurement and display of three-phase circuit of reactive power (Q1, Q2, Q3) and three-phase total of reactive power (Q);
● simultaneous measurement and display of three-phase circuit apparent power (S1, S2, S3) and three-phase total apparent power (S);
● simultaneous measurement and display of three-phase circuit of power factor (PF1, PF2, PF3) and three-phase total power factor (PF);
● same time, the exchange loop measurement and display the frequency (f);
● simultaneously measure and display the total three-phase input active power loop degree (EPi) and the total output of active electrical degrees (EPo);
Measurement and display ● At the same time the total three-phase inductive power circuit electrical degrees (EQind) and capacitive reactive power of total degree (EQcap);
● be able to analyze each phase voltage and current total harmonic distortion and harmonic components from 2 to 32 and three-phase voltage and current imbalance degree;
● Active power measured degree of sub-period, multi-rate required to adapt to the occasion;
● to adapt to three-phase four-wire, three-phase three-wire three-CT, three-phase three-wire two CT, single-equivalent wide variety of applications;
● set the PT, CT transformation ratio, able to adapt to all the high, medium and low voltage AC measurements;
● Optional RS232, RS485, PROFIBUS communication interface, provides MODBUS, PROFIBUS-DP communication protocol;
● Built-in real-time clock provides year, month, day, hour, minute, second information, with lithium batteries to ensure continuous and stable operation of the clock;
● expansion of the six optional auxiliary interface (see table below), can be used for other monitoring, alarm and control;

Note: ① range can be specified by a ratio of output power (such as output voltage V12, 0 ~ 500V corresponding to 4 ~ 20mA);
② optional 4 ~ 20mA or 0 ~ 5V input, in order to be declared;