LQHV-4000 Transformer On-Load Tap-Changer Tester

Industrial-Grade OLTC Diagnostics

The LQHV-4000 revolutionizes tap-changer testing with its embedded PC-104 industrial computer and 6-channel synchronous sampling, delivering unparalleled analysis of:

• Transition waveforms and timing

• Instantaneous resistance values

• Three-phase synchronization accuracy

Product Parameters

Technical parameters

Conditions of Use

Cutting-Edge Technology

1. Industrial Computing Power

• 💻 PC-104 architecture for real-time processing

• ⚡ 100x faster than conventional testers

• 🌐 Ethernet/UART communication interfaces

2. Multi-Channel Analysis

• 📊 6-channel waveform synchronization

• ⏱️ 0.1ms transition time resolution

• 📈 Dynamic resistance graphing

3. Advanced Data Management

• 🗂️ Tree-structured database by substation/tap

• 🖨️ Onboard thermal printing

• 💾 USB sync for enterprise systems

Field-Optimized Design

1. All-Environment Operation

• ☀️ 1000nit LCD with temperature compensation

• ❄️ -20°C to 60°C operating range

2. User Efficiency Tools

• ⌨️ T9 multilingual input

• 📱 One-hand vertical operation

• 🔋 8-hour continuous use

Critical Applications

• Utility Maintenance: OLTC performance trending

• Manufacturing QC: Contact wear analysis

• Fault Investigation: Arcing event reconstruction

• Grid Upgrades: Retrofit verification

Why Professionals Choose LQHV-4000?

• ✅ Industrial Reliability - PC-104 military-grade computing

• ✅ Comprehensive Data - 6-channel waveform capture

• ✅ Enterprise Integration - SQL-compatible database

• ✅ Regulatory Compliance - DL/T 846.8-2004 aligned