CORONA RESISTANCE · INVERTER DUTY

Q(ZY/XY)BP-2/200

Nanomodified Corona-Resistant Enamelled Copper Round Wire

Class 200 | Grade 2 Heavy Build | Inverter Duty

耐电晕
Corona Resistant

IEC 60317-13

NEMA MW35-C

GB/T 6109.20

Corona Resistance

Nanoparticle-reinforced insulation suppresses partial discharge under PWM voltage.

Class 200 Thermal

Continuous operation at 200°C with cut-through temperature ≥ 320°C.

Mechanical Strength

Superior abrasion resistance and flexibility for high-speed winding.

Model Number

Q(ZY/XY)BP-2/200

Thermal Class

200 (Peak 220°C for short periods)

Insulation Structure

Base: Nanomodified Polyesterimide (THEIC-PEI) / Topcoat: Polyamideimide (PAI) with nanoparticles

Conductor Material

High-purity Electrolytic Copper (≥99.99%)

Diameter Range

0.15 mm – 4.00 mm (Custom diameters available)

Film Grade

Grade 2 (Heavy Build) — Grade 1 & 3 available on request

Cut-Through Temperature

≥ 320°C

Heat Shock Resistance

≥ 220°C (Mandrel winding, no cracks)

Corona Resistance (Typical)

≥ 800h @ 20kHz, 100ns, 50%, 155°C (±1500V) — *

Key Feature

Nanomodified insulation — suppresses partial discharge for inverter-driven motors

What is Corona?

Corona discharge is a partial breakdown of air caused by high-voltage spikes in PWM waveforms. It generates ozone and heat, gradually eroding the insulation film.

How BP Technology Works

Uniformly dispersed nanoparticles create a 3D barrier network that dissipates charge accumulation, reducing the intensity of partial discharges and preventing insulation degradation.

0.15

±0.003

0.023

0.182

≥ 3100V

0.20

±0.003

0.027

0.239

≥ 3500V

0.30

±0.004

0.035

0.352

≥ 4000V

0.50

±0.005

0.045

0.566

≥ 4600V

0.80

±0.008

0.056

0.884

≥ 4900V

1.00

±0.010

0.063

1.094

≥ 5000V

1.50

±0.015

0.071

1.606

≥ 6000V

2.00

±0.020

0.075

2.112

≥ 6500V

3.00

±0.030

0.084

3.126

≥ 7000V

4.00

±0.040

0.089

4.133

≥ 7500V

· Inverter-driven motors (VFD applications)

· Electric vehicle (EV/HEV) traction motors

· Industrial servo motors & spindles

· Wind turbine generators

· Hermetic compressor motors (inverter HVAC)

· High-speed motors with PWM drives

· Marine & offshore motors

· Railway traction motors

Corona Resistance

✔ Excellent (≥800h)

Moderate (not rated)

Insulation Technology

Nanomodified PEI+PAI

Standard PEI+PAI

Target Application

Inverter / PWM / VFD motors

General-purpose motors

Thermal Class

200

200

Cut-Through Temp.

≥320°C

≥320°C

Nanotech Insulation

Advanced nanoparticle dispersion ensures consistent corona resistance across the entire wire length.

Integrated Production

Own factories with 100+ tons monthly capacity for specialty and inverter-duty wires.

Global Logistics

Shanghai-based with strategic freight partners for efficient worldwide delivery.

Packaging: PT-25, PT-45, PT-60, PT-90 spools | Vacuum-sealed moisture protection
MOQ: Flexible — sample orders welcome for qualification testing
️ Lead Time: 5-7 days for samples; 15-20 days for bulk orders