Reactive compensation / generator tester
LQ-720 Automatic Capacitance Bridge Tester
Revolutionary in-service testing solution for shunt capacitor banks in power factor correction systems, eliminating the need for disconnection during measurements.
Product Parameters
Technical Parameters
| Measurement range | Capacitance：2uF～2000uF |
| Inductance：5mH～5000mH | |
| Current：20mA～2000mA | |
| Measurement accuracy | Capacitance：± (1% reading + 2 words) |
| Inductance：± (1% reading + 5 words) | |
| Current：± (1% reading + 2 words) | |
| Dimensions | 345mm×295mm×175mm |
| Instrument weight | 7kg |
Working condition
| Ambient temperature | -10℃～50℃ |
| Ambient humidity | ≤85%RH |
| Working power supply | AC220V±10% |
| Power frequency | 50±1Hz |
Key Advantages
Live testing of parallel capacitor banks without disassembly
Simultaneous measurement of capacitance, inductance, and current
320×240 LCD with bilingual (Chinese/English) interface
Built-in thermal printer for instant reports
256-test memory with USB data export
Technical Specifications
| Parameter | Capability |
|---|---|
| Measurement Range | 0.1μF - 20,000μF |
| Voltage Detection | 10-600V AC |
| Accuracy | ±0.5% capacitance, ±1% inductance |
| Display | 320×240 LCD with live waveform |
| Data Storage | 256 test records (non-volatile) |
Innovative Testing Features
1. Parallel Capacitor Measurement
Tests individual capacitors in parallel banks without disconnection
Identifies defective capacitors in
<3 minutes="">Auto-detects Δ/Y capacitor configurations
2. Comprehensive Parameter Analysis
Real-time display of:
Capacitance/Loss tangent
Circuit current (1mA-20A range)
System frequency (45-65Hz)
Impedance phase angle
User-Friendly Operation
3.1 Intelligent Interface
One-touch auto-test initiation
Color-coded warning indicators
On-screen wiring diagrams
3.2 Data Management
Built-in thermal printer (58mm paper)
USB 2.0 data export (CSV/PDF formats)
Timestamped records with location tagging
Safety Protections
Overcurrent Protection: Auto-shutdown at 120% rated current
Live Circuit Detection: Visual/audible warnings
Double-Insulated: 3000V AC withstand voltage
Surge Protection: 4kV transient voltage suppression
Compliance Standards
IEC 60871-1: Shunt capacitor requirements
IEEE 18-2012: Capacitor application guide
GB/T 12747.1: LV power capacitors
