Power Quality Analyzer

Class A Power Quality analyzer PMAC780H-Pro

Ultra-Precision Metrology: ±0 .2% accuracy for voltage/current/power measurement, ideal for renewable energy systems and grid stability analysis.
IEC 61000-4-30 Class A Compliance: Ensures arbitration-grade data reliability for legal/contractual applications, supporting 9kHz harmonic resolution.
High-Frequency Disturbance Capture: Detects 2-9kHz high-order harmonics and rapid voltage fluctuations (50ms response), critical for sensitive electronics.
Event-Driven Protection: Records sag/swell/interruptions with 1XXms timestamping, enabling predictive maintenance for industrial automation.
Transient Analytics Engine: Captures inrush currents (10kHz sampling) and generates FFT-based harmonic reports for equipment troubleshooting.
Zero-Configuration Networking: Dual Ethernet ports with Modbus/TCP & IEC 61850 protocols enable seamless SCADA/EMS interoperability.

Main Documents

PMAC780H-Pro is the upgraded generation of the PMAC780H intelligent power quality monitoring device for modern power distribution systems. It integrates high-precision electrical measurement, advanced power quality analysis, and large-capacity disturbance recording in a single platform.Certified to IEC61000-4-30 Class A, the device provides highly reliable and authoritative power quality monitoring for substations, industrial facilities, and critical power systems.

PMAC780H - ① - ② - ③
①Function Selection:
Pro	Standard configuration
Pro DC	Support 24V DC power supply
②Rated Voltage and Current
V1	220/380V, 5A
V2	220/380V, 1A
V3	57 .7/100V, 5A
③Switching Signal Type
SW	DI:110V DC wet contact
SW2	DI:220V DC wet contact
SD	DI:Dry contact
B05	Dot-matrix LCD display , Class 0.5S(Active Energy), with scheduled data logging Notes: L05 is the default configuration B02 and B05 are available only when option modules E4, E5, or E6 are selected

Power Supply

85 to 275V AC,100 to 300V DC,24 to 48V DC(Optional);Power Consumption:＜10VA

Power-frequency Withstand Voltage

2kV AC for 1min, ≤ 1mA

Insulation Resistance

＞50MΩ

Impulse Voltage

6kv(Peak), 1.2/50μs

Input Range

Voltage:0 to 400V(L-N), 0 to 690V(L-L), Frequency:45 to 65Hz

Overload Capacity

2x Un continuous,4x Un for 1s;4x In continuous,10x In for 1s

Digital Input

Dry Contact:30V DC,Internal supply;Wet Contact:110V/220V±20%DC,External supply

Relay Output

250V AC/5A,30V DC/5A

DO Output Capacity

Max.voltage:36V DC,Max.current:50mA

Standard

Power Quality Measurement Methods	IEC 61000-4-30:2021,Class A
Harmonics and Interharmonics	EC 61000-4-7:2009,Class A
Flickermeter Speciﬁcations	IEC 61000-4-15:2017,Class A
Functional Tests & Uncertainty	IEC 62586-2:2021,Class A

ESD Immunity

IEC 61000-4-2:2001,level 4

Radiated RF Immunity

IEC 61000-4-3:2002,level 3

EFT/B Immunity

IEC 61000-4-4:2004,level 4

Surge Immunity

IEC 61000-4-5:2005,level 4

Conducted RF Immunity

EC 61000-4-6:2006,level 3

PF Magnetic Field Immunity

IEC 61000-4-8:2001,level 4