Test Solution for NEV High–Voltage Auxiliary Systems

Founded in 2009, Changzhou Hopetech Electronic Technology Co., Ltd. is a national-level high-tech enterprise with full in-house capabilities for hardware and software R&D and manufacturing. The company participates in the formulation of national metrology standards. With long-term expertise in safety, resistance and air-tightness test instruments, Hopetech has become a benchmark brand within China’s test-and-measurement industry.

For new-energy-vehicle high-voltage auxiliary systems, including high-voltage wiring harnesses, high-voltage connectors and charging ports, Hopetech provides a full-chain test solution covering air-tightness & IP-protection verification, multi-channel mass hipot testing and insulation-material reliability evaluation.

✅ DT3115B / DP3185B Differential Pressure Air–Tightness Tester｜IP–Protection Gatekeeper Role: Specialist for seal and water-tightness inspection of high-voltage components

Main Functions: Adopts differential-pressure measurement principle with resolution up to 0.1 Pa; supports positive-pressure and negative-pressure testing; single-channel / 2-channel / 4-channel options available; pre-installed standard test programs for IP-protection rating verification.

Pain Points Solved: Rapidly verify sealing performance of charging ports, high-voltage connectors and battery pack housings; detect tiny leaks accurately and complete IP67 / IP68 water-protection validation in one cycle. Multi-channel models greatly boost production-line throughput and prevent high-voltage short-circuit hazards caused by water ingress.

✅ CHT9201–8H 8–Channel Parallel AC/DC Hipot Tester｜Mass–Hipot Efficiency Accelerator Role: Main-stay tester for mass-production inspection of high-voltage harnesses and multi-connector assemblies

Main Functions: 8 independent channels for synchronous parallel testing; SPWM sine-wave driving technology; contact-less electronic discharge; modular plug-gable hardware for easy maintenance.

Pain Points Solved: Complete hipot and insulation tests for multiple groups of high-voltage harnesses and connectors in one single connection. Eliminates throughput bottlenecks from traditional single-channel testers. Modular design simplifies on-site servicing and replacement, reduces production-line downtime cost and enables high-volume safety screening for outgoing components.

✅ HT3530 / HT3530A Ultra-High Resistance Insulation Tester｜Insulation-Reliability Research Specialist Role: Laboratory expert for evaluating material aging performance

Main Functions: Max. test voltage up to 1500 V; resistance measuring range 500 Ω ~ 9.9 PΩ; minimum current resolution 0.1 pA; supports both surface-resistance and volume-resistivity test modes.

Pain Points Solved: Evaluates base-material performance of high-voltage-harness insulation in R&D phase; verifies insulation degradation after humidity-heat aging tests. Precisely captures performance deterioration of aged insulation materials, identifies defects in material selection at an early stage, and mitigates in-service insulation-failure safety risks over the vehicle service life.

This combined solution covers incoming-part validation, mass-production batch inspection and R&D aging reliability testing. Multi-layer screening catches potential defects of high-voltage components in advance and ensures long-term safe operation of vehicle-mounted high-voltage auxiliary systems.