What is the warranty period for the products?

The warranty period for our products is one year. If an extension of the warranty period is required, we will increase the price by a certain profit margin based on the existing price accordingly.

S22 Flameproof Mining Transformer for Underground Mine with Explosion Proof Enclosure

Name: S22 Flameproof Mining Transformer for Underground Mine with Explosion Proof Enclosure
Brand: Liaocheng Ketexiangrui New Energy Co.,Ltd.
SKU: 2238338525

Shandong, ChinaLiaocheng Ketexiangrui New Energy Co.,Ltd.

US$3,999.00

1-4 Pieces

US$3,599.00

5-9 Pieces

US$3,299.00

10+ Pieces

Product profile

Application

Power

Phase

Three

Core

Core-type Transformer

Model NO.

customizable

Cooling Method

Oil-immersed Type Transformer

Winding Type

Multi-winding Transformer

Certification

ISO9001-2000, ISO9001, CCC, CE,Gsa,Coc,GOST

Usage

Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer

Frequency Characteristics

Low Frequency

Shape of Core

Brand

Kete

Core Material

Silicon Steel Sheet

Winding Material

Copper/Aluminum

Taping Range

±5 or ± 2*2.5%

Voltage Regulator

5 Steps

Standard

IEC60076,GB1094

Insulation Class

Frequency

50Hz/60Hz

Coil Structure

Toroidal

Connection

Yyn0 or Dyn11

Outline Shape

Vertical Transformer

Effciency

98%

Moisture-Proof Method

Sealed

High Voltage

13.2kv

Low Voltage

0.4kv

Capacity

400kVA 500kVA 630kVA 800kVA 1000kVA 1250kVA

Transport Package

Export Standard Wooden Box

Specification

Customized

Trademark

KETE

Origin

Liaocheng, Shandong Province, China

HS Code

8504210000

Production Capacity

5000 Pieces/Year

Key features

Wide Capacity Range: Available in 400kVA, 500kVA, 630kVA, 800kVA, 1000kVA, and 1250kVA options.

Flameproof Design: Explosion-proof enclosure specifically designed for underground mining environments.

High Efficiency: Efficiency reaches up to 98% with superior heat dissipation capabilities.

Comprehensive Certifications: Certified with ISO9001, CCC, CE, UL, GSA, GOST, and COC standards.

Flexible Customization: Customizable core material, winding material, voltage, and insulation class.

Long Maintenance Cycle: Maintenance required every 1-3 years due to moisture-proof sealed design.

Strong Overload Capacity: Can bear loads exceeding rated capacity during short-term peaks.

Global Standards Compliance: Fully compliant with IEC, ANSI, and GB standards for international use.

Company profile

Years of Export ExperienceNational Award receivedPatents AwardedSelf-branded

Liaocheng Ketexiangrui New Energy Co.,Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 14 years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤9.36h CertifiedTerms of Payment: T/T, LC

AI-Powered supplier vetting

SummaryLiaocheng Kete New Energy Co., Ltd. is identified as a factory manufacturer in Liaocheng, China, operating in electrical and power equipment. Its stated product range includes transformers, box-type substations, switchgear, transmission towers, and new-energy equipment. The company reports integrated R&D, design, production, and construction capabilities, along with ISO 9001, ISO 14001, OHSAS 18001, CCC coverage for 18 low-voltage products, and CQC inspections. It serves power grids, plants, substations, industrial, railway, and construction sectors and reports exports to multiple countries. SGS audit information is provided with a stated validity period, but the audit result is coded rather than explained. Manufacturing-area information is inconsistent across the supplied slices, and most service, innovation-process, quality-control, sustainability, and financial details remain unknown. No financial figures are included.

Supplier typeThe supplier is explicitly identified as a factory located in Liaocheng, China, in the manufacturing industry. Its business scope covers electrical and power equipment, including transformers, substations, switchgear, transmission towers, and new-energy equipment.

CertificationsThe company states that it holds ISO 9001, ISO 14001, OHSAS 18001, and CCC certification for 18 low-voltage products, with products also reported as passing CQC inspections. An SGS audit record is provided for August 29, 2025 to August 28, 2026, although the coded audit result is not interpretable from the supplied context.

R&D capabilityThe supplier describes itself as a National High-Tech Enterprise and reports an integrated R&D, design, production, and construction base supported by technological innovation. However, specific R&D documentation, SDK capability, private-mold development, 3D design services, and other detailed innovation capabilities are marked unknown.

Production capacityThe supplier reports manufacturing power equipment across several product categories and integrated production and construction capabilities, supported by sector applications and international exports. The submitted manufacturing-area data is inconsistent, and outsourcing procedures, manufacturing-capacity contracts, inventory capability, and order-fulfillment details are not sufficiently explained.

Client casesThe supplier identifies served sectors including urban power grids, power plants, substations, oil and chemical, railway, and construction, and reports exports to the United States, Brazil, Peru, Kenya, Ethiopia, India, Myanmar, Vietnam, and other countries. These are market and sector references rather than named customer case studies, so the breadth of customer experience is supported but specific cases are not verifiable.

Product Q&A

Q:Will Kete provide guidance documents for installation?

For large transformers that require the removal of some accessories to fit into containers, we will provide an installation video and an electronic version of the installation instructions.

Q:What is the manufacturing and delivery lead time for Kete oil-immersed transformers?

Generally speaking, if the customer provides detailed design drawings and specification requirements, transformers below 2500KVA can be completed within approximately 20 days; transformers above 2500KVA usually take about 30 to 40 days. The specific lead time depends on the complexity of the transformer.

Q:What is the packaging for Kete oil-immersed transformers?

For bulk cargo, we will use wooden cases for packaging; for full containers, we will use wooden pallets to reinforce the packaging. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.

Q:What are the payment terms for Kete transformers?

(1) T/T 30% as deposit, and 70% before delivery. (2) LC at sight (3) DP at sight

Q:What are the delivery terms for the bulk shipment of Kete transformers?

EXW, FOB, CFR, CIF or some other delivery terms inquired by customers.