HV Motor On-Line Partial Discharge Monitoring System

50% of high-voltage motor stator failures stem from partial discharge (PD). Continuous insulation void discharge and slot corona cause insulation breakdown and unplanned production shutdowns.

MOEORW-W5086GS is developed complying with GB/T 20833.2-2016, Q/GDW 11304.5-2015 and DL/T 2271-2021, applicable to 6kV–38kV generators, HV motors and GCB equipment for power, petrochemical, steel, mining, pharmaceutical and manufacturing industries.

This modular system consists of IPDS coupling capacitive sensors, split-core HFCT sensors, RTD temperature boards, local acquisition units and a WEB cloud platform. It conducts 24/7 synchronous collection of PD pulses and winding temperature signals, processes data via edge computing to filter interference, and outputs standardized PD graphs for early warning of insulation defects.

We support full-set bulk supply, separate sensor wholesale and OEM/ODM customization for distributors and system integrators.

1.Distributed IP Networking, Max 200 Accessible Units, Zero On-Site Configuration

Built on TCP/IP & WEB architecture; the platform auto-identifies newly added units without manual parameter setup. Suitable for phased expansion of large industrial parks, reusable tender technical materials improve bid success rate.

2.20km Fiber Long-Distance Transmission Without Repeaters

Fiber communication between acquisition units delivers lossless signal transmission. Cuts auxiliary material costs for long-span mining and chemical plants to enhance your quotation competitiveness.

3.＜100ns Multi-Unit Synchronization, Accurately Separate PD & Industrial EMI

100MS/s sampling rate, 14-bit 3-channel synchronous ADC with fiber time synchronization. Maintains stable graph output in heavy-interference sites (steel mills, inverter workshops) and reduces after-sales debugging workload.

4.5PC Ultra-Low Detection Limit for Early Insulation Degradation Warning

Captures tiny internal void discharge pulses at the initial aging stage to avoid sudden motor burnout and increase end-user repurchase rate.

5.600kV Flashover Surge Resistance, Zero Hardware Damage & Data Loss

Integrated high-voltage protection circuit passes high-impulse withstand testing. Stable performance under grid lightning surges and cabinet short-circuits, lowering bulk-order after-sales costs.

6.Dual Time/Frequency-Domain Filtering, Strong Anti-Interference Performance

Onboard FPGA completes local signal denoising and feature extraction; no extra shielding accessories required for complex industrial environments.

7.Wide-Voltage Low-Power Design: AC100–240V Input, 20W Single Unit Consumption

Adapts to unstable power supply in old power rooms; low overall energy consumption for large-scale batch deployment. Operating range: -25℃~50℃, RH ≤90% non-condensing, compatible with all climate zones without differentiated stock.

8.Browser-Only WEB Platform, 10-Year Local Data Storage

No client software installation; remote cloud access supports simultaneous multi-party viewing for owners, contractors and maintenance teams. Built-in mass database meets long-term data archiving requirements for power industry acceptance.

9.Standard PD Pattern Library & Auto-Generated Inspection Reports

Supports trend curves, phase linear graphs, 2D PRPD and 3D PRPS graphs. The embedded expert library automatically distinguishes internal void discharge, slot corona and external noise, with one-click PDF report export for routine grid inspections.

10.Multi-Type Sensors for Live-Line Retrofit, One-Stop Sourcing

Split-core HFCT installs without power cut; RTD boards reuse original motor temperature wiring without altering existing temperature monitoring. Integrators can source all components from a single supplier, and separate sensor sales create extra profit channels.

Local PD Acquisition Unit
Sampling Rate: 100MS/s | ADC Resolution: 14-bit 3-channel sync | Inter-unit sync time difference: ＜100ns Min detectable PD: 5PC | Surge withstand: 600kV flashover | Power supply: AC100–240V | Power consumption: 20W Ambient: -25℃~50℃, RH ≤90%
 

HFCT High-Frequency Current Sensor
Bandwidth: 0.3–30MHz | Dynamic range: 68dB | Resolution: 0.1dB | Transfer impedance ≥10mV/mA | Input impedance: 50Ω Structure: Split-core full metal shielding, live-line installation
 

IPDS Coupling Capacitive Sensor
Max rated voltage: 38kV | Bandwidth: 1–20MHz | Dynamic range: 68dB, resolution 0.1dB Equipped with built-in phase reference and high-voltage protection circuit
 

RTD Temperature Sensing Board
Bandwidth: 1–20MHz | Dynamic range: 68dB, resolution 0.1dB 6-channel RTD access, dual functions: winding temperature measurement + PD signal collection, coaxial signal output
 

Software Functions
Graph types: Trend curve, phase linear graph, PRPD, PRPS; Local storage ≥10 years; 2-level customizable alarms (Warning / Danger)

1.Independent R&D of hardware, algorithms and software; customizable logos, UI and parameters for OEM private-label sales to boost profit margins.
2.Flexible order modes: full sets, separate acquisition units or single sensors; low MOQ for trial orders and large EPC bulk orders.
3.Stable mass production capacity: standard sensors in stock for 72h delivery; bulk unit orders shipped within 7–15 working days; all production self-operated without outsourcing.
4.Full lifecycle technical support: 2-year warranty for acquisition units, 18-month warranty for sensors. Free tender schemes, parameter templates and construction drawings for bulk partners; 24h online support, 48h on-site commissioning & training.
5.Lifetime free platform upgrades to match updated power industry standards, no extra maintenance fees.
6.Free supply of full qualification documents: ISO9001 certificate, third-party type test reports, patents and software copyright electronic files for bidding and project acceptance.

1.Power plants (thermal/hydro/PV): Stator insulation monitoring for 6kV/10kV main generators
2.Petrochemical industry: Explosion-proof HV drive & pump motor online monitoring
3.Iron & steel metallurgy: PD monitoring for high-power variable-frequency rolling mill and blast furnace motors
4.Mining industry: Conveyor and hoist HV motor monitoring for open-pit & underground mines
5.Rail transit, pharmaceutical & advanced manufacturing: Retrofit monitoring solutions for critical continuous-production HV motors

1.Front-end sensors: IPDS coupling capacitors, split-core HFCT transformers, RTD temperature boards
2.Transmission accessories: Coaxial cables, fiber optic lines
3.Core device: MOEORW-W5086GS local PD acquisition unit
4.Backend system: WEB cloud PD diagnosis platform (data storage, pattern analysis, alarm & report output)