Why is VLF test recommended over DC test?

VLF test causes slight insulation damage and is safer compared to DC tests which have strong insulation damage.

VLF-84 80kV Hipot 0.1Hz very low frequency Tester

Name: VLF-84 80kV Hipot 0.1Hz very low frequency Tester
Brand: HV Hipot Electric Co., Ltd.
SKU: 1974456795

Hubei, ChinaHV Hipot Electric Co., Ltd.

US$4,552.00-11,520.00

1 Piece

Product profile

Customization

Available

After-sales Service

yes

Warranty

1 year

Model NO.

VLF-84

Type

Universal Testing Machine

Accuracy Grade

0.5

Load Way

Electronic Load

Loading Method

Dynamic Load

Display

Digital

Control

Computer Control

Weight

0-100Kg

Power Source

AC220V

Peak voltage

80kV

Test frequency

0.1Hz, 0.05Hz and 0.02 Hz (selectable)

Transport Package

Standard Plywood Case

Specification

ISO9001

Trademark

HV HIPOT

Origin

Wuhan, China

Production Capacity

3000PCS/Year

Key features

IEC Recommended VLF Test: 0.1Hz very low frequency test is highly recommended by IEC for cable insulation.

Smart Quick Control System: Adopts ARM7 microcontroller and digital frequency conversion for stable performance.

Integrated HV Design: Control and high-voltage parts integrated; only requires HV and ground wires for connection.

Portable Trolley Design: Lightweight and compact structure facilitates easy transportation and outdoor operations.

Fast Protection Response: Over-voltage and over-current protection action time is no longer than 10ms.

Selectable Test Frequencies: Supports 0.1Hz, 0.05Hz, and 0.02Hz options to ensure a wide test range.

Safe Photoelectric Isolation: Control unit and booster connected at low voltage with photoelectric isolation for safety.

No Capacity Rising Effect: Adopts closed-loop negative feedback circuit to prevent capacity rising during output.

Company profile

HV Hipot Electric Co., Ltd.

Hubei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service AvailableExport Year: 2011-07-01 CertifiedNearest Port: Wuhan PortAverage Response Time: ≤3.74h CertifiedTerms of Payment: LC, T/T

AI-Powered supplier vetting

SummaryHV Hipot Electric Co., Ltd. is a China-based factory and limited company in Wuhan, Hubei, established in 2006 according to the company profile, while another description states operations began in 2003. It manufactures high-voltage testing and related electrical measurement equipment, including AC/DC hipot testers, partial-discharge testers, and circuit-breaker testers. The supplier reports ISO9001:2015 and ISO14001:2015 certifications, three production lines, 6–10 quality-control staff, and eight years of R&D-engineer experience; another statement reports 18 technicians in its R&D team. It serves multiple overseas markets and accepts LC and T/T payment terms, with stated one-month lead times in both peak and off-peak seasons. Evidence supports established technical and manufacturing capabilities, but after-sales service, customization, and specific customer cases are not sufficiently documented.

Supplier typeThe supplier is identified as a limited company, a factory, and a manufacturing enterprise located in Wuhan, China. Its business focuses on instruments, meters, electrical and electronic products, particularly high-voltage testing equipment.

CertificationsThe supplier explicitly reports ISO9001:2015 and ISO14001:2015 certificates, while another company description confirms ISO9001 quality management certification and high-tech enterprise qualifications. These statements provide direct evidence of formal quality and environmental management credentials.

R&D capabilityThe supplier reports successive development of multiple high-voltage testing products, participation in high-voltage and energy-saving projects with State Grid-related organizations, research institutions, and Wuhan University, and an R&D team described as 18 technicians. These are explicit indicators of product-development and technical innovation capability.

Production capacityThe supplier operates as a factory with three production lines, 6–10 quality-control staff, a 2,712 m² manufacturing plant, and stated one-month order fulfillment in both peak and off-peak seasons. It also reports self-operated import and export rights and serves several overseas markets, supporting a positive assessment of production and delivery capability.