A compact, portable test device with main unit and auxiliary anti-interference module. Supports 4 rated voltages (0.5kV/1kV/2.5kV/5kV), automatic measurement of insulation resistance, absorption ratio and polarization index, with analog and digital dual display.

1. Strong anti-interference capability: Suppresses up to 30kV induced voltage and power frequency interference, overall suppression capacity ≥100 times, ensuring true test results.
2. High safety: Separates high-voltage area from operation area; measures induced voltage first before insulation test to avoid hazards to personnel and equipment.
3. Portable design: Main unit weighs 3kg, auxiliary module 7kg/8kg, with towable instrument case for easy transportation and on-site use.
4. Multi-functional: Tests insulation resistance, capacitance (20uF), with adjustable short-circuit current (2~5mA, 10mA customizable).
5. Flexible power supply: AC 220V±10% or 16.8V rechargeable lithium battery, 6-hour battery life at 5000V@100M.
6. Modular design: Vertical use, multi-section structure for easy transportation, upgrade and expansion of higher-level anti-interference functions.

1. Main Unit Specifications

Power supply: AC 220V±10%, 50/60Hz, 20VA; 16.8V rechargeable lithium battery

Battery life: Approximately 6 hours at 5000V@100M

Dimensions (L×W×H): 26cm×20cm×16cm

Weight: 3kg

Test voltage accuracy: 100%~110% of nominal value

Current test range: 10mA

Current measurement accuracy: 5%+0.2nA

Short-circuit current: 2~5mA (adjustable), 10mA customizable

Withstand induced voltage: ≥20kV

Line terminal insulation to ground: ≥50GΩ

Suppression capacity: ≥80 times

Self-impact on insulation test: +1.6MΩ

Voltage divider ratio: Resistive divider 1000:1
 

2. Insulation Resistance Test Specifications (Temperature 23±5℃, RH 45~75%)

Measuring range:

500V; Accuracy: 100k-10G at 5% accuracy; 10G-100G at 20% accuracy

1000V; Accuracy: 100k-20G at 5% accuracy; 20G-200G at 20% accuracy

2500V; Accuracy: 100k-100G at 5% accuracy; 100G-1TG at 20% accuracy

5000V; Accuracy: 100k-100G at 5% accuracy; 100G-1TG at 20% accuracy
 

3. Capacitance Test Specifications

Measurement range: 20uF

Accuracy: ±15%+0.03uF

Discharge rate: From 5000V to 10V, 0.5S/µF
 

4. Auxiliary Anti-Interference Module

Withstand voltage: 50kV

Anti-interference voltage: 30kV

Assembled dimensions: 1500mm×100mm (vertical use)

Weight: 7kg/8kg (varies by configuration)

Display mode: Analog and digital dual display

Additional function: Automatic measurement of absorption ratio and polarization index
 

5. Environmental Conditions

Operating temperature: 23±5℃

Relative humidity: 45~75%RH