What is the accuracy of the frequency output?

The frequency range is 0-1000 Hz with an accuracy of 0.01 Hz.

Can this device be connected to a laptop?

Yes, it can be connected to a laptop or industrial computer, which use the same software for operation.

What after-sales service is provided?

We provide 24/7 after-sales service that is friendly to all time zones.

Automatic Three Phase Current and Voltage Relay Test System Relay Test Set Three Phase Relay Protection Tester

Name: Automatic Three Phase Current and Voltage Relay Test System Relay Test Set Three Phase Relay Protection Tester
Brand: Weshine Electric Manufacturing Co., Ltd.
SKU: 1994623405

Hebei, ChinaWeshine Electric Manufacturing Co., Ltd.

US$3,600.00-5,999.00

1 Piece

Product profile

Customization

Available

After-sales Service

24/7. All Time Zones Friendly

Warranty

1 Year

Model NO.

VS-JB902

Single Phase Current Output

0 ~ 40 a / Phase, Accuracy: 0.2 % ± 5 Ma

Max Output Power Per Phase

400 Va

Phase

0 ~360,The Accuracy Is 0.1 Degree

Switch Input Terminal

8 Pairs

Three Phase Parallel Output

0 ~ 120 a / Three Phase in Phase Parallel Output

Frequency Range

0 ~ 1000 Hz, Accuracy 0.01 Hz

Harmonic Number

2 ~20 Second

DC Current Output

0~± 10A/Phase,

Weight

12.5kg

Transport Package

Polycrate with Plastic Foam

Specification

Dimensions: 410 x 190 x 420mm

Trademark

WESHINE

Origin

China Hebei

HS Code

903039

Production Capacity

500 Pieces/Per Month

Key features

Software Self Calibration: Avoids opening the case for calibration, greatly improving accuracy stability.

System Recovery Function: Windows XP system with recovery function to prevent crashes from illegal shutdowns.

OEM and ODM Support: Full customization options including samples, designs, and flexible modifications.

PC-Like Operation: Compatible with laptops and industrial computers using the same software interface.

High Precision Output: Frequency accuracy 0.01 Hz and phase accuracy 0.1 degree for reliable testing.

100% Product Inspection: Every unit undergoes visual and functional inspection before shipment.

ISO Certified Manufacturer: Factory certified with ISO9001, ISO45001, and ISO14001 management systems.

Compact and Portable: Lightweight design at 12kg with dimensions 338x168x305mm for easy transport.

Company profile

Years of Export ExperienceExhibition ExperienceManagement Certification

Weshine Electric Manufacturing Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 13 Years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤3.63h

AI-Powered supplier vetting

SummaryWeshine Electric Manufacturing Co., Ltd. is identified as a limited-company factory producing testing equipment, with 53 employees and no stated parent group affiliation. It provides multiple customization options and ODM services, and reports OEM service for well-known brands. Service processes, corrective and preventive action procedures, and complaint-handling procedures are documented and supported by records. However, the supplier reports no new products in the past year, no available SDK, no valid manufacturing contracts with affiliated subcontractors, and no overseas warehouse, showroom, agents, or branches. An audit by TUVRHEINLAND is listed, but the provided audit result is coded as “0” without an explanatory interpretation. Financial information is present only as reporting years and contains no assessable financial performance data.

Supplier typeThe supplier is identified as Weshine Electric Manufacturing Co., Ltd., a limited company and factory focused on testing equipment. It is described as a combined company, not an offshore company, and is not part of a larger company group.

After-Sales capabilityThe supplier has written and followed procedures for service assessment, corrective and preventive actions, and customer complaints. It reports in-stock capability and one-month lead times in both peak and off-season, but lacks overseas warehouses, showrooms, agents, and branches, with no overseas service countries stated.

R&D capabilityThe supplier offers ODM services and reports several design-service options, but it had no new products during the past year and has no available SDK. The evidence therefore shows some development-service capability but limited recent innovation evidence.

Production capacityThe supplier is identified as a factory producing testing equipment, has in-stock capability, reports one-month average lead times in both seasons, and lists six qualified suppliers. However, it reports no valid contract between the factory and related subcontractors, creating a documented manufacturing-governance deficiency.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, minor customization, and full customization, as well as ODM services. This directly demonstrates broad customization coverage.