35kv Jdz9-35q Single-Phase Full Operational Mode Voltage Transformer

• Application: Power, Electronic, Instrument
• Phase: Single
• Core: Core-type Transformer
• Model NO.: 35KV JDZ9-35Q
• Cooling Method: Dry-type Transformer
• Winding Type: Separated Winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC
• Usage: Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: OD
• Brand: Dahu
• Warranty: 12months
• Frequency: 50/60Hz
• Transport Package: OEM
• Specification: Standard or customization
• Trademark: DAHU
• Origin: China
• HS Code: 8504210000
• Production Capacity: 30 Sets/Months

Product Description

Dry type transformer are widely used in
Chemical, oil and gas industry
Environmentally sensitive areas (e.g. water protection areas)
Fire-risk areas (e.g. forests)
Inner-city substations
Indoor and underground substations
Renewable generation (e.g. off-shore wind turbines)

A dry type transformer is a type of transformer which never uses any insulating liquid where its winding or core are immerged in liquid. Rather, the windings and core are kept within a sealed tank that is pressurized with air.

Types of Dry Type Transformers
The dry type transformer is of two types. They are

Cast Resin Dry Type Transformer (CRT)
Vacuum pressure Impregnated Transformer (VPI)

What are the main advantages of a dry type transformer?
Self-extinguishing, low fire hazard
a dry type transformer comes with an eco-friendly material on its insulation. So, it comfortably winds in a self-extinguishing manner, is flame retardant, and of course easy to maintain. With it, you won't have to invest in a fire extinguisher. Plus, even under the influence of arcing, it doesn't produce toxic gases.

Zero Oil Usage
as mentioned earlier, the dry transformer doesn't need any liquid to cool. It only requires air to remain cool. So, you won't have to incur extra expenses to get oil, or any other liquid, plus the maintenance costs attached to them. It's safe to say that this is an almost maintenance free transformer, so you can stay worry-free.

Eco-friendly and safe
since dry transformers don't use oil or liquids for that matter, you won't have to deal with oil leaks. Or any other form of environmental pollutants. Plus, they are self-extinguishing meaning they rarely explode. Also, the dry type transformers are widely known to withstand unexpected weather changes, making them suitable for heavily polluted and condensed environments.

Low cost installation and lower load losses
due to their low risk nature, there are barely any restrictions when installing the dry type transformers. You also won't have to deal with other environmental precautions such as groundwater protection. Also, these transformers can serve you for over 20 years, with low chances of failure.

Low Maintenance
we cannot insist on this enough. The dry type transformers are extremely low maintenance. Like you barely have to even maintain them. As long as they have air to cool, you won't have to deal with built-up dirt. Also, you will never have to deal with liquid testing. However, a routine expert inspection is recommended, and that shouldn't be too hard.

Sustainable
when you use a dry transformer, you are playing a key role in ensuring we save our earthly resources. With it comes low electricity usage, 90% recyclable materials, and a reliable service of 20+ years.

Outdoor Potential Transformer (PT)
Definition and Role: Voltage transformer (PT) is mainly used to convert high voltage into low voltage (usually 100V) suitable for instruments or relays, for measuring line voltage, power and electrical energy, or for protecting valuable equipment in the line in case of line failure.
Structure: PT consists of primary winding, secondary winding, iron core terminal and insulation support.
Working Principle: The working principle of PT is similar to that of ordinary transformer with no-load condition, which realizes voltage transformation by changing the ratio of winding turns.
Technical parameters: in the 110kV and above voltage level system, PT usually has two secondary windings, rated phase main secondary winding voltage is 100/31/2V.

Step-down transformer
Definition and function: Step-down transformers are used to reduce high voltage to a voltage level suitable for the safe use of the consumer, e.g. to reduce a voltage of more than 100,000V to a three-phase, four-wire system of 380V.
Technical parameters: The technical parameters of step-down transformer include rated capacity, rated voltage, no-load loss, no-load current, short-circuit loss and so on. For example, the no-load loss of S9-M-800/6 step-down transformer is 1400W, load loss is 7500W, no-load current is 0.8% and impedance voltage is 4%.

PT and VT (voltage transformer)
PT (Voltage Transformer): Used to convert high voltage to low voltage for measurement and protection systems.
VT (Voltage Transformer): Similar in function to the PT, also used for voltage conversion, but specific models and parameters may differ.
The above information provides the basic concepts and some technical parameters of outdoor potential transformers (PTs), step-down transformers, and PTs and VTs. These devices play an important role in the power system to ensure effective voltage transformation and stable operation of the power system.