# RAPA600/400 DC & AC Power Analyzer

RAPA AC/DC power analyzer developed by RenAn Precision, it is a wide-bandwidth, high-precision power analyzer suitable for testing, energy efficiency evaluation and harmonic analysis of transformers, rectifiers, inverters, frequency converters and other converters, motors and electrical products.

## why clients trust RAPA Power Analyzer

## High Accuracy & Authoritative

RAPA600 power electronics power analyzer provides measurement benchmark for the first national standard of power electronics power measuring instrument.

All accuracy indicators of RAPA600 frequency conversion power analyzer can be traced to the source.

**System accuracy:**

0.05% for voltage and current;

0.1% for power;

## Turn-key solution power analyzer

Together with RAPS power sensors which transmit the voltage and current signal to RAPA via fiber, accuracy of the whole system is guranteed.

Conventional power test system is composed of power analyzer, voltage sensor, current sensor, auxiliary power supply and transmission line and other components.The accuracy of each component and the matching degree of each component will affect the system accuracy.

RAPA power analyzer adopts front-end digital technology, transmission the data via optical fiber to the host, so no error will be introduced during the transmission, and the accuracy of the sensors is the system accuracy.

## power analyzer with 0.1% Global Accuray

Global accuracy means that within the scope of application of the instrument, the power electronics power analyzer can meet the nominal accuracy index.**Other power analyzers: **

use the accuracy of the best accuracy point as the nominal accuracy, and at the same time, they have a wide application range, and the nominal accuracy is out of line with the application range. In the right figure, the nominal accuracy is 0.06%, and the applicable range of the nominal frequency is 0.1Hz～1MHz, clearly indicating that it is suitable for PWM wave measurement. In fact, below 30Hz, its sine wave measurement accuracy is 0.55%, while the PWM wave measurement accuracy is 1.8%

**RAPA600/400 Power Analyzer:**

RAPA600/400 frequency conversion power analyzer in the range of 0.1Hz ~ 1500Hz (currently traceable). Both the test accuracy of sine wave and non-sine wave meet the nominal accuracy of 0.1%. Namely: 0.1% is the global precision.

## power analyzer with 0.1% Relative Accuray

The accuracy indicators of almost all instruments reflect the reference error, and the accuracy indicators are only valid at full scale, that is, accuracy and range are an inseparable whole. To judge whether the measurement result is accurate, the concern is the relative error.

For example:

the range of the meter is 15kV, and the accuracy is 0.1%, we cannot judge whether the measurement result is accurate or not:

If the measured value is 15kV, the measurement accuracy is 0.1%; if the measured value is 1500V, the measurement accuracy is 1%;

If the measured value is 150V, the measurement accuracy is 10%; if the measured value is 75V, the measurement accuracy is 20%.

**RAPA Power Analyzer:**

The frequency conversion power sensor for RAPA600 has built-in 8 ranges that can be automatically and seamlessly switched, and the power unit of the 15kV range can measure 75V ~ 15kV with an accuracy of 0.1%!

## Functions of RAPA Power Analyzer

## Digital power meter

According to the selected circuit diagram, RAPA frequency conversion power analyzer can directly display the relevant parameters corresponding to the circuit diagram on the main interface, and name each parameter with a customary name. Voltage and current parameters can choose to display true RMS value rms, fundamental wave RMS value h01, arithmetic mean value avg, calibration mean value, etc., and power can choose to display total active power Pavg and fundamental wave active power Ph01 according to needs. By default, the analyzer enables automatic seamless range switching, and displays the currently used range on the right side of the measured parameter.

## power quality analyzer

Calculate frequency stability, amplitude stability, total harmonic distortion THD, total harmonic factor THF, voltage harmonic factor HVF, current harmonic factor HCF and other electric energy characteristic values within the set time. The positive-sequence component, negative-sequence component, and zero-sequence component are calculated using the symmetrical component method. According to the national standard, IEEE, NEMA, CIGRE and other standards to calculate the three-phase unbalance and other parameters. It can conveniently judge whether the test power supply of various converters such as transformers and frequency converters and motor test benches meets the requirements of relevant standards.

## real-time oscilloscope

The oscilloscope function of the RAPA variable frequency power analyzer adopts the real-time sampling technology of fixed sampling rate, which avoids the aliasing distortion caused by the low sampling frequency and the inaccuracy of the equivalent sampling oscilloscope when the variable sampling rate oscilloscope measures PWM waveforms with high bandwidth and low fundamental frequency. For measuring non-periodic waveforms and other issues, PWM waveforms down to 0.1Hz can be fully viewed. RAPA variable frequency power analyzer can replace professional oscilloscopes in the electrical parameter testing of motors, transformers, frequency converters and various converters, and there is no need to consider the problem of probe range.

## Harmonic detector

RAPA variable frequency power analyzer adopts high-performance dual-core embedded CPU module with large memory and fast calculation speed. It can realize DFT transformation of 0.1Hz fundamental frequency SPWM waveform at a sampling frequency of 250kHz. It ensures the synchronization of the sampling frequency and the signal frequency, and ensures the correctness and accuracy of the harmonic analysis results. The instrument can directly display the 100th harmonic, and through the extended host computer software, it can realize the real-time operation of the 2000th (not greater than 100kHz ) harmonic. RAPA600 frequency conversion power analyzer can replace various harmonic analyzers, especially suitable for harmonic analysis of SPWM waveform output by frequency converter.

## paperless recorder

The RAPA frequency conversion power analyzer is equipped with screen capture and acquisition functions. The screen capture function is equivalent to a camera, and every time you press it, a screen shot is recorded. The acquisition function records the instantaneous sampling data of all channels and various steady-state eigenvalues of calculations. Screenshots and acquisitions are recorded as files on the externally connected memory or under the storage directory set by the system. The storage capacity depends on the connected storage device (the analyzer has a built-in 150GB hard disk), which is almost unlimited, which completely solves the problem that the conventional paperless recorder has a small storage capacity and cannot satisfy long-term recording.

## Typical Applications RAPA Power Analyzers

Each variable frequency RAPS Series power sensor is also called a power unit, which can measure one voltage and one current. Each RAPA can be configured up to 6 power units for RAPA600 and 4 units for RAPA400. Multiple RAPA units can be synchronized through synchronous optical fibers, and the data can be uploaded to a centralized hose through Ethernet to realize synchronous measurement of electrical parameters of any channel.

## The configurations of RAPA Power Analyzers

Item | RAPA400 | RAPA600 | Item | RAPA400 | RAPA600 |
---|---|---|---|---|---|

Routine measurement | √ | Real-time waveform | √ | ||

Harmonic Analysis | √ | Three-phase unbalance | √ | ||

Positive sequence component | √ | Negative sequence component | √ | ||

Total Harmonic Distortion THD | √ | Total harmonic factor THF | √ | ||

Harmonic voltage factor HVF | √ | Harmonic current factor HCF | √ | ||

Ethernet interface | √ | Expansion interface RS485 | √ | ||

Torque/speed | Optional | Number of power sensing units supported | 4 | 6 | |

Data update cycle | 10ms~10s | Harmonic measurement | 0~99 times | ||

Synchronous Measurement Interface | Synchronous optical fiber + time base signal | Signal Transmission Mode | digital optical fiber transmission | ||

## The specifications of RAPA Power Analyzers

Item | Value |
---|---|

Real-time sampling frequency | 250kHz |

-3db bandwidth | 100kHz |

Voltage | Type H: 0.05%rd@amplitude: 0.75%~150% UN, fundamental frequency: 0.1Hz~5Hz[1] |

0.05%rd@amplitude: 0.75%~150% UN, fundamental frequency: DC, 5Hz~1500Hz[2] | |

Type M: 0.1%rd@amplitude: 0.75%~150% UN, fundamental frequency: 0.1Hz~5Hz[1] | |

0.1%rd@amplitude: 0.75%~150% UN, fundamental frequency: DC, 5Hz~1500Hz[2] | |

Type L: 0.2%rd@amplitude: 0.75%~150% UN, fundamental frequency: 0.1Hz~5Hz[1] | |

0.2%rd@amplitude: 0.75%~150% UN, fundamental frequency: DC, 5Hz~1500Hz[2] | |

Current | Type H: 0.05%rd@amplitude: 1%~200% IN, fundamental frequency: 0.1Hz~5Hz[1] |

0.05%rd@amplitude: 1%~200% IN, fundamental frequency: 5Hz~1500Hz[2] | |

Type M: 0.1%rd@amplitude: 1%~200% IN, fundamental frequency: 0.1Hz~5Hz[1] | |

0.1%rd@amplitude: 1%~200% IN, fundamental frequency: 5Hz~1500Hz[2] | |

Type L: 0.2%rd@amplitude: 1%~200% IN, fundamental frequency: 0.1Hz~5Hz[1] | |

0.2%rd@amplitude: 1%~200% IN, fundamental frequency: 5Hz~1500Hz[2] | |

Power | Type H: 0.05%rd@power factor=1; rated voltage, rated current; fundamental frequency: 45~66Hz[2] |

Type M: 0.1%rd@power factor=1; rated voltage, rated current; fundamental frequency: 45~66Hz[2] | |

Type L: 0.2%rd@power factor=1; rated voltage, rated current; fundamental frequency: 45~66Hz[2] | |

Type H: 0.1%rd@ power factor: 0.2~1; fundamental frequency: 0.1Hz~5Hz[1] | |

0.1%rd@power factor: 0.2~1; fundamental frequency: DC, 5Hz~1500Hz[2] | |

Type M: 0.2%rd@ power factor: 0.2~1; fundamental frequency: 0.1Hz~5Hz[1] | |

0.2%rd@power factor: 0.2~1; fundamental frequency: DC, 5Hz~1500Hz[2] | |

Type L: 0.5%rd@power factor: 0.2~1; fundamental frequency: 0.1Hz~5Hz[1] | |

0.5%rd@power factor: 0.2~1; fundamental frequency: DC, 5Hz~1500Hz[2] | |

Type H: 0.2%rd@power factor: 0.05~0.2; fundamental frequency: 0.1Hz~5Hz[1] | |

0.2%rd@power factor: 0.05~0.2; fundamental frequency: DC, 5Hz~1500Hz[2] | |

Type M: 0.5%rd@ power factor: 0.05~0.2; fundamental frequency: 0.1Hz~5Hz[1] | |

0.5%rd@power factor: 0.05~0.2; fundamental frequency: DC, 5Hz~1500Hz[2] | |

Type L: 1%rd@ power factor: 0.05~0.2; fundamental frequency: 0.1Hz~5Hz[1] | |

1%rd@power factor: 0.05~0.2; fundamental frequency: DC, 5Hz~1500Hz[2] | |

Frequency Measurement Accuracy | 0.02%rd@0.1Hz~1500Hz |

Applicable range of temperature | -5℃~50℃ |