Large Power Transformers

Large power transformers are in the power range above 250 mva, generator and network intertie transformers with off-load or on-load tap changers, or a combination of both, are recommended. Depending on the on-site requirements, they can be designed as multiwinding transformers or autotransformers, in 3-phase or 1-phase versions. Even with ratings of more than 1, 000 mva and voltages up to 1, 200 kv (800 kv), the feasibility limits have not yet been reached. We manufacture these units according to iec 60076 as well as other international and national standards (e.G., ansi/ieee). Generator step-up (gsu) transformers Gsu units transform the voltage up from the generator voltage level to the transmission voltage level, which may be as high as 1, 200 kv system voltage. Such transformers are usually ynd-connected. In order to make an inquiry regarding a gsu power transformer, the technical data for the items in this section are required. Step-down transformers Step-down transformers transform the voltage down from the transmission voltage level to an appropriate distribution voltage level. The power rating of step-down transformers may range up to the power rating of the transmission line.

Tungwell also offers a wide variety of power auxiliaries and materials available for all your power generating, transmission, distribution and protection needs. We offer a full range of customer supports for all products & equipment that we support and manufacture, such as genuine engine parts for generating sets and Gas Turbines, Protection devices as CT, PT, SA, T&Dline hardware, etc.

Technical data â?? The voltage transformers are in accordance with GB1207 and IEC60044-2 standards; â?? Rated insulation level: 24/65/125kV; â?? Rated frequency: 50Hz, 60Hz; â?? Rated secondary current: 5A, 1A. Type Class voltage ratio(kV) Class combination Accuracy class and rated output(VA)(cos�?=0.8) Limited thermal output of secondary winding Weight(kg) 0.2 0.5 1.0 JDZ9-10(B) JDZ9-6(B) 10/0.1 6/0.1 0.2 0.5 1.0 40 100 200 600 34 JDZF9-10(B) JDZF9-6(B) 10/0.1/0.1 6/0.1/0.1 0.2/0.5 25 40 2X300 JDZU9-10(B) JDZU9-6(B) 10/0.1/0.22 6/0.1/0.22 0.2 0.5 1.0 30 60 100 400 NOTE: if user's data go beyond the above mentioned scope, please contact us for negotiation and confirmation.

Supplier: Power and distribution transformers
Services: Manufacturer
Buyer: Power transformers, dry transformers, cast resin, oil transformers

Supplier: Japanese quality switchgear components, breakers, magnetic contactors, switches, pilot lights, pushbuttons, panel instrumentations, power management meter, protection relays, transformers, inverters, ups.

factory Linier Variable Differential Transformer (LVDT) HTD-400-6 for power station is a research and development, production, sales, import agents in one of the manufacturing and processing enterprises. Our company was established in 2004. For more than 20 years, our company's products are widely used in electric power, petroleum, chemical, environmental protection, refractory materials, metallurgy, fire fighting equipment, natural gas, electronics, nuclear industry and other fields. Our company is willing to work with colleagues from all walks of life at home and abroad wholeheartedly cooperation to create a better future power plant, steel spare parts are as follows: can offer many spare parts for power plants as below: DF-Linier Variable Differential Transformer (LVDT) HTD-400-6-DF rotation sensor ZS-03 L90 lvdt 20mm sensor A156.33.01.28 pt100 WZPM-001 Tacho RPM sensor ZS-03 L=90 linear displacement transducer HL-6-600-15 lvdt transducer TDZ-1E-45 lvdt displacement transducer 20000TDGN lvdt linear position sensor FRD.WJA2.608H Non-Contact Linear Displacement sensor HTD-200-3 speed meter sensor D075-05-01 speed sensor symptoms IMFCS01 lvdt transducer displacement TDZ-1G-13 Analog Linear Displacement Sensor A157.33.01.3 speed sensor CS-3-M16-L185 thermocouples extension lead wires WRNK-322 sensor de lvdt ZDET-400B thermowell flange TE-109 thermistor TE-203 lvdt transducer 191.36.09.09 Shaft Rotation Speed Sensors CS-3-L180 inductive displacement sensor A157.33.01.31 stainless steel Thermocouple WRNK2-291 Gear rpm sensor HTC-40D10ES Sheath Cartridge Heater HY-GYY-1.2-415V/3 temperature measurement sensor pt100 WZPK2-380B rpm sensor indicator CS-1-AD-B100-C10-D01 lcd speedometer DF9011-B Gear speed sensor CS-1 Magnetic Pick-up Speed Sensor G-075-02-01 speedometer lcd DM-11B ptfe pt100 temperature sensor WZPM2-001 �¦5 lvdt position sensor B151.36.09G32 Bimetal Temperature Gauge WTY-1021 pt100 thermal resistance WZPM2-08-67.5-M18-B Surface Thermocouple WREX2-001 Analog Linear Displacement Sensor TDZ-1-H Linier Variable Differential Transformer (LVDT) HTD-400-6 angular displacement sensor 6000TDGN-30-01-01 dual sensor rtd WZP-221 5000 rpm torque sensor CS-1 G-100-02-01 temperature sensors WZPK2M-201 lvdt displacement sensor TDZ-FRD-301 displacement inductive sensor B151.36.09.04-006 DFYL-2023-2-3-MY

Product description Transformer calibrator is a new automatic instrument. We apply advanced electronic technology in the design. By directly decomposing the error signal, it is able to display the percentage, phase error and orthogonal error statistically. It s quick and energy saving. And it s especially good for live testing due to its cute dimension and light weight. Technical Parameters Working Condition: (1) Temperature: 5 (2) Relative humidity:

Product Introduction This Transformer control boxof console is suitable for adjustable voltage control of 0.5-10kVA test transformer. Technical Indicators Maximum capacity 20kVA Input voltage 220kV Output voltage 0-250V Maximum output current 0-90A Mains phase number single-phase Power frequency 50HZ Instructions precision 1.5 Class Using Methods and Attention Matters 1.Check the test transformer measuring winding rated output voltage, and make it match the operation box correctly. 2. Connect the line between test transformer and operation box according to the wiring diagram. 3. Switch on the power supply, then close the knife switch, and the power indicator light, finally set the work time of relay. 4. Make the pressure regulator display zero, press the start button, the clockwise rotation of the hand wheel, until it reaches the required value. 5. Start the timing switch, timing begins, the electric bell will alarm automatically when it reaches the setting time(artificially controlled time if there is on alarming function), then break off the timing switch. Q&A: What is the difference between a control box and a box-type transformer The control box has only control functions. It is a control unit. Its main function is to issue instructions to control the rapid breaking of the circuit breaker in the box substation; it is a component in the box substation. The box-type transformer generally refers to the box-type substation, which integrates the functions of power transformation, power distribution, control, and protection.

Overview Current transformer volt-ampere characteristic tester Only need to set the test voltage, current and step, the device will boost and trace voltage current characteristic test curve automatically, save the cumbersome labor of manual pressure regulation, artificial record, tracing curves, and so. Quick, simple and convenient. I can not only test CT/PT DC resistance, volt-ampere characteristics, ratio and polarity, 10% error curve, angle difference and ratio difference, but also test secondary load of transformer, CT current test and PT AC withstand voltage test. CT ratio not only supports traditional current method but also voltage method, so it can meet the test of CT in casing CT and GIS. Volt-ampere characteristic test single machine output voltage 0-2500V, current 0-20A, can meet most of the transformer volt-ampere characteristic test. 220V single power input and avoids the risk of using 380V. Current transformer volt-ampere characteristic tester Main Technical Parameters: Booster output current & voltage 1A/2500V 2A/1500V 5A/600V 10A/220V 20A/30V Current generator output current 600A Output power 3000VA Voltage and current measurement accuracy 0.2% CT ratio tests Range 1~40000 Voltage method / current method Accuracy 0.2% PT ratio tests Range 1~40000 Accuracy 0.2% Phase measurement Accuracy 5min Resolving power 0.5min Secondary winding resistance tests Range Accuracy 0.52m AC load tests Range 0~1000VA Accuracy 0.5% 0.05VA Power supply AC220V 10 50Hz work environment Size & Weight Size: 425 mm 290 mm 310mm Weight: 30kg