High-Voltage Insulation Test Equipment Vlf AC Hipot Tester Cable Tester

• Customization: Available
• After-sales Service: 1 Year
• Warranty: 1 Year
• Model NO.: Dvlf-30-1.1
• Max Diameter of Workpiece: <500mm
• Mass Scope of Workpiece: <900kg
• Type: Electric Testing
• Maxcapacity: <1000KN
• Display: Digital
• Control: Computer Control
• Weight: 0-100Kg
• Power Source: AC220V
• Transport Package: Wooden Box
• Trademark: DEMIKS
• Origin: Shanghai

Product Description

DVLF-301.1 Ultra-low Frequency High Voltage Generator

Application

DVLF series 0.1Hz program-controlled ultra-low frequency high voltage generator combines the advanced technology of modern digital frequency conversion, adopts microcomputer control, fully automates step-up, step-down, measurement and protection, and can be manually intervened in the process of automatic step-up. Because it is fully electronic, it is small in size, light in weight, clear and intuitive in large-screen LCD display, and can display output waveform and printer output, so the report and design indicators fully meet the General Technical Requirements for Special Test Instruments for Electric Power Equipment, Part 4: Ultra-low.

General technical conditions for high frequency and high voltage generators, which is the power industry standard, is very convenient to use.

Features

Current, voltage and waveform data are directly obtained by sampling at the high voltage side, so the data is true and accurate.

Overvoltage protection: When the output exceeds the set pressure limit, the instrument will be shut down for protection, and the action time is less than 20ms.

Over-current protection: it is designed as dual protection of high and low voltage, and the high voltage side can be accurately shut down according to the set value.

When the current on the low voltage side exceeds the rated current, shutdown protection will be carried out, and the action time is less than 20ms.

The high-voltage output protection resistor is designed in the booster, so there is no need to connect another protection resistor outside.

Because of the high and low voltage closed-loop negative feedback control circuit, the output has no tolerance effect.

Specification

Model no	Rated voltage/current	On-load capacity	Power fusetube	Product structure and weight
30/1.1	30kV/ (PeakValue)	0.1Hz,≤1.1µF	5A	Controller:4kg Booster:25kg
		0.05Hz,≤2.2µF
		0.02Hz,≤5.5µF
40/1.1	40kV (PeakValue)	0.1Hz,≤1.1µF	6A	Controller:5kg Booster: 50kg
		0.05Hz,≤2.2µF
		0.02Hz,≤5.5µF
50/1.1	50kV (PeakValue)	0.1Hz,≤1.1µF	8A	Controller:5kg Booster:60kg
		0.05Hz,≤2.2µF
		0.02Hz,≤5.5µF
60/1.1	60kV (PeakValue)	0.1Hz,≤1.1µF	10A	Controller:8kg Booster:75kg
		0.05Hz,≤2.2µF
		0.02Hz,≤5.5µF
80/1.1	80kV (Peak Value)	0.1Hz,≤0.5µF	20A	Controller:10kg Booster:85kg
		0.05Hz,≤1.0µF
		0.02Hz,≤2.5µF
90/1.1	90kV (Peak Value)	0.1Hz,≤0.5µF	20A	Controller:10kg Booster:110kg
		0.05Hz,≤1.0µF
		0.02Hz,≤2.5µF

Company Profile

SHANGHAI DEMIKS ELECTRIC POWER TECHNOLOGY CO.,LTD

Main categories: Transformer Testing Equipment, Oil Immersed Transformer, Dry Type Transformer, High Voltage Testing Equipment, Partial Discharge Tester
Browse through our products and see how DEMIKS best high voltage test equipment can improve your operations.
DEMIKS is a high-technology enterprise that designs, manufactures, and sells power testing equipment. Thpe company has more than 22 years of experience developing tailored solutions for testing power that meet ISO-9001 standards. After more than 22 years of development by the core team,power transmission and distribution equipment and electrical testing products have been widely recognized by major enter-prises and institutions, and users are spread across provinces,cities, districts and counties across the country.Established in 20o2, located in Shanghai,China.Owns 4000 square meters factory area and 120 staff members.We have developed total more than 160 kinds of electrical test products.
22 years of experience and strong R& D support made us become a leader in the field of power on-site testing. The domestic market have been expanded to many provinces and cities nationwide, and our products have been recognized by diverse range of industrial sectorsThe business is increasing every year. Meanwhile,we have also been actively marketing in oversea market. Until now, our products have been exported to USA,Australia, Russia, India, Pakistan,VietnamMid-dle East, Korea, Singapore.
DEMIKS partners with major research laboratories, which allows the company to consistently offer innovative and reliable products that are widely used in China and sold in over ten other countries. Striving for safety, efficacy, sustainability, and innovation, DEMIKS aims to dominate the global market as a provider of power safety solutions.
The company always adheres to the sustainable development path of scientific research innovation and international production.From a single production line to a one-stop power solution, it provides customers with products and services that meet actual heeds. At present, the company has achieved product diversil fication, scale and systematization, product aualty is strictly implemented in accordance with is 0-9001 international quality standards, and continuous reform and innovation have established a Dowe!

Standards to better serve the power industrv.arch institutes in Beiing,wuhan,Shanghai, Xi'an and other places to ensure that the company's products are always in a leading position. 
To harness the best of technology and become the global leader in power safety solutions by providing innovative and advanced reliable technologies to all industries around the world while improving safety, effectiveness, sustainability, and revolutionizing new paths in power.
DEMIKS focuses on designing, manufacturing, and delivering high-quality power testing equipment.
All products meet ISO-9001 standards for quality assurance
Collaborates with leading research labs to create tailored, innovative solutions.
Committed to ensuring power safety and reliability for industries worldwide.
DEMIKS provides reliable, durable, and precise high-voltage test equipment designed for modern electrical testing needs. With a focus on innovation and years of expertise, we deliver cutting-edge solutions for professionals across industries.
Transformers are the most critical elements of the electric infrastructure, their availability and longevity have a major impact on grid consistency. For over 20 years, DEMIKS Transformer has been playing an active role in transformer industry to deliver the most suitable high-quality products to the customers for complete life-cycle support.
Our company specializes in producing amorphous alloy power transformers, dry-type transformers, oil-immersed transformers, box transformers, rectifier transformers, on-load tap-changing transformers, and new energy wind and photovoltaic box transformers, all with voltage levels of 35kV and below and capacities of up to 31, 500kVA. 
We are equipped with advanced production and testing facilities, including slitting lines, cross-cutting lines, vacuum drying, foil winding machines, vacuum impregnation tanks, resin casting tanks, and a full set of testing equipment.

Professional technical personnel make up 20% of our workforce. We have established a CAD local area network for data sharing and introduced 3D drawing software, significantly enhancing our capabilities in transformer design, simulation, and analysis. Our transformers are known for their low loss, low noise, reasonable structure, and superior performance, meeting advanced technical standards. They are widely used in urban and rural power grids, as well as in petrochemical, metallurgical, textile, and mining industries. 
Enterprises mainly produce epoxy resin dry-type transformer,oil-immersed series power transformer,European box transformer,American box transformer,pipe gallery transformer,underground transformer,buried landscape box transformer,new energy wind photovoltaic box transformer,DC charging pile,silicon steel sheet of transformer,transformer core,transformer oil tank and other products with voltage class of 35kV and below and capacity of 31500kVA and below.
We focus on continuous improvement and strive for the green development of electrical equipment. The DEMIKS team is composed of experts and professional knowledge, helping us quickly solve customer problems. Whether selecting the current product from our catalog or seeking engineering assistance for your application, please contact our customer service center to discuss your procurement requirements.

Customer Needs Analysis
We understand the client's specific needs and requirements, including product specifications, quantity, and operating environment.
Technical Solution Design
Based on the client's requirements, we design an appropriate technical solution,including transformer type, specifications,and configurations.
Quotation and Negotiation
We provide a detailed quotation based on the technical solution and product requirements, followed by communication and negotiation.
Contract Signing
Upon agreement, both parties sign a formal sales contract specifying product types,quantities,prices,and after-sales services.
Product Manufacturing
We begin manufacturing transformers that meet client specifications, ensuring on-time delivery.

Installation and Commissioning
Once the transformer arrives at the client's site, we conduct installation, wiring, and commissioning to ensure proper operation.
Certified Quality
ISO-9001 certified equipment ensuressuperior reliability and performance.Equipment ensures precise results, even in harsh conditions.
Innovative Solutions
Products feature advanced technology for accuracy and efficiency.Custom power testing systems tailored for evolving needs.
Collaborative Expertise
Partnerships with research labs deliver effective, future-ready solutions.
Exceptional Support
With over 20 years of overseas export experience.Comprehensive assistance from consultation to after-sales service.

Packaging and Transportation

Wooden cases/crates iron structure
Accessories are packed in a welded steel structure before packing on wood piates.
Polywood crates
Polywood crates are appiied for packing to accessories and smail distribution transformers.
Loading transfonmer to truck
Demiks has 75 tons and 50 tons crane for lifting transformers.
Steel structures protection
Smail distribution transformers are packed in a welded steel structure before packing on wood plates.
Nude transformer mainbody
All drivers and truck have certificate to drive in China,Lashing chains are fixed
at trucks robustiy.Nitrogen or oil is fified for main body.
Transport to port
All trucks are approved and certified to carry heavy cargos in china.
Transformer oil tank
Oil tank filled with oil for filling after arrival on site.This tank is made by bemiks and can be reused on site.
Terminal box and tep changer control box wood protection
Wood box are appiied to protection HV or LV terminal box and tap changer control box or any other parts easy to get collision.
Truck with rain-proof cloth
All accessory crates are protected by water proof cioth on the way to port.
Transformer unioading at Shanghai port.
Transformer loading at Shanghai port.
Tranformer loading on ship.

FAQ

1. who are we?
We are based in Shanghai, China, start from 2025,sell to South America(15.00%),Eastern Asia(10.00%),Mid East(10.00%),South
Asia(10.00%),Africa(10.00%),Southeast Asia(10.00%),Central America(10.00%),North America(10.00%),Oceania(5.00%),Northern
Europe(5.00%),Eastern Europe(5.00%). There are total about 11-50 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
3.what can you buy from us?
High voltage testing equipment,Transformer testing equipment,Circular break testing equipment,Relay test kit,SF6 Gas Analyzer
4. why should you buy from us not from other suppliers?
The company always adheres to the sustainable development path of scientific research innovation and international production.
From a single production line to a one-stop power solution. Choose DEMIKS electric company is very much right!
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FCA,DDP,Express Delivery;
Accepted Payment Currency: USD,EUR,CNY;
Accepted Payment Type: T/T,L/C;
Language Spoken: English,Chinese,Spanish,French,Russian
Select DEMIKS for equipment critically acclaimed for using modern technology and years of industry experience, as the equipment is high-performing and reliable. Innovative solutions are offered along with great support from consultations to after-sales services.
6. What are the after-sales services?
One year warranty( 12 months since customer receive & use the machine). The manufacturer guarantees to provide life-long paid maintenance services for the product.