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Oil temperature indicator

Oil temperature indicator
  • Oil temperature indicator
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Oil temperature indicator, OTI Series 34 Winding temperature indicator, WTI Series 35.Email: yuyang@mec.com.cn

Product Details


Email: yuyang@mec.com.cn
Oil temperature indicator, OTI Series 34
  The oil temperature indicator series 34 measures the top-oil temperature. It is a standard instrument for cooling, control and protection for all transformer.
Winding temperature indicator, WTI Series 35
 The life of the transformer depends on the winding temperature which determines the deterioration of the insulating materials. Due to the high electric potential of the winding, it is not practical to measure the winding temperature directly.

This product is designed for power transformers. It is s special design for long life, heavy duty and maintenance free control of the oil-(OTI)and winding-(WTI)temperature.
It is made for outdoor mounting directly on the transformer in any climate, tropical as well as arctical. All parts are made of non-corrosive or surface treated material. A powerful measuring system secures the safe and accurate operation of the high capacity contacts. Besides the basic models, described in this bulletin, many options are available. For example:
- transmitter for remote indication
- earthquake-proof execution
- extreme climate execution
- protection class IP 55 or 65 acc. to DIN or IEC.

Casting: Die casted aluminium with two- pack urethane based primer. Clear transparent window of tough polycarbonate plastic. The case is ventilated and weather-proof according to DIN 40050 protection class IP 54
Temperature sensing system: of expansion type (no mercury) and compensated for ambient temperature changes.
Capillary tubing: of copper-nickel with a protective tubing of stainless steel.
Switches: two up to five microswitches, terminal connected as twoway switches(open or close on temperature rise). Electrically separated circuits. Each switch has a dial for setting the contact temperature. Making and breaking capacity:15 A,250 V AC, see last page. Option: switches with magnetic blow out-M.B.O type-with higher DC switching capacity.
Insulation test:2000 V 50 Hz to earth 60 s.
Maximum indicating pointer: resettable from outside with a screwdriver
Instrument operating temperature: for standard execution max.+70,min -40°C
Anti-vibration mountings:included

Company Profile

We are a professional player in transformer industry,  our annual total production capacity is about 18,000,000 KVA, our factory covers an area of 370,000 square meters and a building area of 100,000 square meters, with total assets of 350 million CNY and more than 1000 staff members with engineering and technical employees accounting for 21%.
Our main products include 220kV and below&200MVA and below oil immersed power transformers, 110kV and below furnace transformers, 110kV and below rectifier transformers, 35kV dry type transformers, 35kV combined transformer substation, 35kV and below amorphous alloy transformer, 35kV and below reactor etc. All of our products' performance measures up to the standards established by International Electric Committee (IEC).
We have many advanced production and testing facilities which imported from Germany and Japan, such as silicon sheet shearing automatic lines, automatic and continuous extrusion lines of electromagnetic wires, Kerosene vapor vacuum drying systems and more than 1,500 sets of production and complete testing systems for professional transformer production and other testing equipment. We can meet the requirements of customers completely.
 We have obtained ISO9001 quality management system and ISO14001 environmental management system certifications and in strict accordance with these standards in our routine.
We also obtained the CE certificate, CTQC test report, Nation Standardization Management AAA Certificate, National Measuring System Certificate and others. Many prizes also have been awarded to us in the past years by the relevant national Authority and local government.
Owing to our good reputation on quality and service, our products have been exported to more than 20 overseas countries and regions.
We sincerely hope we can provide you with best products and satisfied service, and you are always warmly welcome to visit us.

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