Relay Tester/Secondary Circuit Tester

LQHV-602 Portable Waveform Recorder | Fault Recording & Generator Testing Device

The LQHV-602 portable waveform recorder combines fault recording, generator testing, and real-time power system analysis in one compact industrial-grade device with DSP precision.

US$1.00; Negotiated Price
Lead time: 30days

Send email to us

>>>WhatsApp Communication<<<

Product Details

Product Tags

LQHV-602 Portable Waveform Recorder: Multi-Function Power Analysis Solution

Industrial-Grade Portable Measurement Device

The LQHV-602 represents the next generation of portable waveform recorders, integrating fault recording, generator characteristic testing, and real-time power system analysis into a single compact unit. Designed for field engineers, this device combines laboratory-grade accuracy with rugged portability.

Product parametersProduct Parameters

Technical parameters

Hardware configuration
Display screen	15.6 "LCD; resolution: 1366 × seven hundred and sixty-eight
Storage	Hard drive 120GB, memory 4GB
Interface	Network: 1 10/100Mbps 802.3u interface, 2 USB interfaces
Number of channels
Analog quantity	16 routes
Switching quantity	16 routes
Derived quantity	24 routes
Channel
Synchronous sampling frequency	10k/s、20k/s、50k/s、100k/s optional
Safety	Galvanic isolation withstand voltage 3000VDC
Working power supply
AC power supply	Rated voltage: single-phase 220V, 50Hz, allowable deviation -15%~+15%
DC power supply	Rated voltage: 220V, allowable deviation -15% to+15%
Structure
Chassis size (mm)	407 (width) × 150 (high) × 370 (deep)
Weight	10kg (including aluminum alloy packaging box)
Environment
Operation temperature	Indoor use: -5~+45 ℃, relative humidity 5-95%
Storage environment	Indoor storage: -5~+45 ℃, humidity below 95rh% (non condensing)

Analog channel

Technical indicators
A/D resolution	16 bit
Effective value accuracy	0.2%
Channel Type
Ac signal	Calculate effective value using RMS (root mean square) algorithm
Dc signal	Calculate the effective value using the average algorithm
Speed signal	Process and extract zero crossing information, calculate parameters such as speed and power angle
4-20mA signal	Calculate the effective value using the average algorithm
Measuring range
AC voltage channel	AC150V～AC1000V
AC current channel	Direct access: AC10A
AC current channel	Current clamp: AC1A~AC200A
DC voltage channel	DC±100mV、DC±2000V
DC current channel	Direct access: DC ± 200mA
DC current channel	Hall current clamp: DC ± 100A
Speed channel	Photoelectric sensors or eddy current sensors; 1: 1 or 1:60

Derived quantity

Types of	accuracy
Frequency	±0.02Hz
Active power	0.5%, cos φ 1.0-0.5 Voltage ＞ 50% Current ＞ 10%
Reactive power	0.5%, sin φ 1.0-0.5 Voltage ＞ 50% Current ＞ 10%
Difference between two vectors, sum of two vectors, AC impedance	0.5%
Power factor/positive sequence/negative sequence/zero sequence/two-phase negative sequence/synchronous pressure difference	1%
Phase angle difference, measured power angle, line power angle	±0.3°
Calculate work angle	±1.5°
Scalar sum	Determined by reference parameters
Scalar difference	Determined by reference parameters
linear function	Determined by reference parameters

Switching channel

Channel Type	Technical Parameter
Combination of 8 active nodes and 8 passive nodes	Active node access to DC24~220V
8 passive nodes, 4 active nodes, and 4 output channels	Active node access to DC24~220V
8 passive nodes, 4 active nodes, and 4 output channels	Output capacity empty node output, AC220V/5A
16 passive nodes	/

Core Functionalities

1. Advanced Fault Recording

Continuous monitoring of equipment parameters
Pre-fault and post-fault data capture
Waveform analysis for root cause diagnosis

2. Generator Testing Suite

No-load characteristic tests
Short-circuit tests
Excitation system tests (step response, de-excitation)
Synchronization testing

3. Real-Time Power Analysis

Analog & digital input monitoring
Harmonic analysis up to 50th order
Sequence component calculation (positive/negative/zero)

Field Applications

Power Utilities

Substation equipment monitoring and fault analysis

Industrial Plants

Critical machinery protection and diagnostics

Generator Maintenance

Commissioning and periodic testing of generators

Operational Advantages

Compact Design: 30% smaller than conventional recorders
Flexible Configuration: Modular input channels (4-16 analog inputs)
Intelligent Analysis: Automatic report generation
Rugged Construction: IP54 rated for field use

Compliance & Standards

The LQHV-602 meets stringent industry requirements including:

IEC 61000-4-30 (Power quality measurement)
IEEE C37.111 (COMTRADE file format)
GB/T 14598.301 (Dynamic performance requirements)

With its combination of high-speed DSP processing, industrial-grade reliability, and comprehensive analysis capabilities, the LQHV-602 portable waveform recorder sets a new standard for field measurement devices in power systems and industrial applications.

>>>WhatsApp Communication<<<

>>>Click To Get Quote<<<