What is the accuracy of the transformer ratio tester?

Accuracy is Grade 0.2 for range 1-1000 and Grade 0.5 for range 1000-10000.

Does the device support CT and PT testing?

Yes, it supports transformer ratio group tests, PT ratio polarity tests, and CT ratio polarity tests.

Portable Transformer TTR Turn Ratio and Winding Resistance Test Machine

Name: Portable Transformer TTR Turn Ratio and Winding Resistance Test Machine
Brand: Wuhan Hertz Power Equipment Co., Ltd
SKU: 2177096305

Hubei, ChinaWuhan Hertz Power Equipment Co., Ltd

US$1,799.00-6,999.00

1 Piece

Product profile

After-sales Service

24-Hour Online Service

Warranty

One Year

Display Type

Digital Only

Model NO.

HZBB-I

Certification

Customized

Model No.

Hzbb-I

Weight

3.8kg

Turn Ratio Test Range

0.9~10000

Accuracy

1-1000 Grade 0.2 ; 1000-10000 Grade 0.5

Function 1

High and Low Voltage Reverse Connection Protection

Function 2

Output Short Circuit Protection Function

Display

LCD

Output Current

0-600A

Output Voltage

0-1200V

CT Measurement Range

Less Than 5000A/1A(25000A/5A)

PT Measurement Range

Less Than 500kv

Power Supply Voltage

AC220V 50Hz/60Hz

Transport Package

Wooden Box with Foam

Specification

325*225*125mm

Trademark

HRETZ POWER

Origin

Wuhan, China

HS Code

9031809090

Production Capacity

120 Sets/Month

Key features

High Precision Testing: Accuracy grade 0.2 for range 1-1000 and 0.5 for 1000-10000.

Large LCD Display: 5.6-inch high-brightness color screen visible in strong sunlight.

Comprehensive Protection: Features reverse connection and output short circuit protection.

Multi-Function Testing: Supports transformer ratio, PT, CT ratio, and polarity tests.

Portable Design: Lightweight at 3.8kg with compact dimensions for field use.

Data Storage Options: Supports local storage and USB flash disk for data saving.

CE Certified: Product meets CE certification standards for safety.

Customizable Model: Model Hzbb-I supports customization for brand and software.

Company profile

Wuhan Hertz Power Equipment Co., LtdHubei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples CertifiedNearest Port: Wuhan Port, Shenzhen Port, Shanghai PortAverage Response Time: ≤1.64h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryWuhan Hertz Power Equipment Co., Ltd. is an electrical and power equipment manufacturer, seller, repair provider, and technical service supplier based in Wuhan, China. It holds ISO9001:2015 and ISO14001:2015 certificates, reports available SDK capability, design-based customization, four production lines, inventory capability, and documented finished-product inspection instructions. Its stated product output includes cable fault locators, transformer oil hipot testers, relay protection testers, power frequency test devices, and series resonance AC test sets. The supplier exports primarily to North America, with exports representing 51%–70% of total sales and seven years of export experience. However, it reports no valid manufacturing-capacity contract with related subcontractors, no overseas warehouse or showroom, no outsourcing SOP, and no continuous quantity reconciliation for each batch. Evidence of customer cases and after-sales execution is insufficient.

Supplier typeThe supplier is identified as a China-based manufacturer and seller of instruments, electrical and power equipment, and mechanical equipment, with repair, research and development, software, and technical service activities. Its registered and physical addresses are the same Wuhan location, supporting classification as an equipment manufacturer and technical-service provider.

CertificationsThe supplier reports holding ISO9001:2015 and ISO14001:2015 certificates. These explicitly demonstrate quality-management and environmental-management certification, although no certificate scope or validity dates are provided.

R&D capabilityThe supplier reports available SDK capability and includes equipment research and development, software development, technology development, consultation, and technical exchange in its scope. These facts support technical-development capability, but no R&D investment, patent, product-development record, or engineering-team scale is provided.

Production capacityThe supplier reports four production lines, inventory capability, and stated annual product outputs across five categories, including 500 cable fault locators, 1,000 transformer oil hipot testers, 1,000 relay protection testers, 800 power frequency test devices, and 500 series resonance AC test sets. Capacity controls have weaknesses: there is no valid manufacturing-capacity contract with related subcontractors, no continuous batch quantity reconciliation, and no outsourcing SOP.

Customization capabilityThe supplier explicitly reports customization from customer designs. This is direct evidence of design-based customization capability, although the available information does not specify engineering scope, tooling capability, lead times, or customization limitations.