Relay Tester/Secondary Circuit Tester

LQHV-1200 Advanced Relay Test Set - 6-Phase DSP+FPGA Testing System

Industry-leading LQHV-1200 relay test set features 6-phase voltage/current output, DSP+FPGA control, and automated transformer differential testing for power system protection.

US$1.00; Negotiated Price
Lead time: 30days

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Product Details

Product Tags

LQHV-1200 Protection Relay Test Set

Next-Generation 6-Phase Relay Testing Platform

The LQHV-1200 redefines protection relay testing with its 6-phase voltage/6-phase current output architecture and DSP+FPGA control system. Engineered for complex applications including transformer differential protection and plant auto-reclosing systems, this tester delivers laboratory-grade precision in field-ready packaging.

Core Technical Specifications

Output Channels: 6× voltage (0-120V) + 6× current (0-40A/phase, 120A short-term)
Control System: Dual DSP+FPGA with 16-bit DAC resolution
Waveform Accuracy: ±0.1% magnitude, ±0.2° phase angle
Communication: USB 3.0, Ethernet (IEC 61850-9-2 LE support)
Weight: 14.5kg (with carry handles)

Breakthrough Testing Capabilities

1. Multi-Phase Output Matrix

12-phase combined output modes (6V+6C)
Native support for 3-winding transformer differential tests
Programmable sequence output for auto-reclose simulations

2. Hybrid DSP+FPGA Architecture

DSP handles real-time signal processing (4μs update rate)
FPGA manages parallel output channels
16-bit DAC ensures 0.01% THD at full load

3. Linear Amplifier Technology

0.1Hz-5kHz frequency response
<1μV noise floor for sensitive relay testing
Active impedance matching (0.1Ω-10kΩ)

Workflow Optimization Features

Automated Test Sequences

Pre-loaded templates for 25+ common relay types

Real-Time Analytics

On-screen vector diagrams + phasor calculations

Portable Operation

Integrated carrying handles + shock-mounted components

Product Parameters

argument

Current channel number	Standard 6 phase
Voltage channel number	Standard 6 phase
Ac current output range	30A/phase or 180A (six parallel)
Dc current output range	10ADC/phase
Ac voltage output range	120VAC/phase
Dc voltage output range	160VDC/phase

Ac current output

6 phase current output per phase (effective value)	0 ~ 30A output precision 0.2
3 phase current output per phase (effective value)	0～60A
6 phase parallel current output (RMS)	0～180A
Phase current long-term allowable working value (RMS)	10A
Maximum output power of phase current	450VA
T6 phase parallel current maximum output power)	1000VA
6 Allowable working time for maximum output of phase parallel current	10s
Frequency range (fundamental)	0～1000Hz
Harmonic frequency	0 to 20 times

Dc current output

Current output	0 ~ ±10A/phase output accuracy 0.5 level
Maximum output load voltage	20V

Ac voltage output

Phase voltage output (RMS)	0 ~ 120V output precision 0.2
Line voltage output (RMS)	0～240V
Phase voltage/line voltage output work	80VA / 100VA
Frequency range (fundamental)	0～1000Hz
Harmonic frequency	0 to 20 times

Dc voltage output

Phase voltage output amplitude	0 ~ ±160V output accuracy 0.5
Line voltage output amplitude	0～±320V
Phase voltage/line voltage output power	70VA / 140VA

Switching value

8 switch inputs	Null contact 1 ~ 20mA, 24V
8 switch inputs	0Potential contact access "0" : 0 ~ +6V; 1: +11 V to +250 V
4 pairs of switching output	DC：220 V／0.2 A；AC：220 V／0.5 A