| Customization: | Available |
|---|---|
| Application: | Electronic, Instrument, Position Sensor, Audio, Lighting |
| Type: | Current Transformer |
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Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable power equipment manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations, high-voltage switches, and medium and low voltage complete sets of equipment. The equipment put into production and operation of the project advocates energy saving, intelligence, informatization, and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center, with 71 utility model patents and 15 invention patents. With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa, and other regions, covering more than 40 countries.
1.It is inverted oil/paper insulation type product.The main insulation is wound by high voltage cable paper, and is placed several capacitor screen of voltage division in the primary insulation, which can improve electric field distribution and decrease the consumption of insulation material, immersed with transformer oil after desiccating under vacuum.It has advantages of stable and reliable performance of insulation,rich operated experience, long service life.
2. Primary winding is penetrating type conducting rod structure,maximum short-time withstand current can reach 50kA/3s(in case of series connection of primary winding).
3. Secondary winding is cast in aluminum shielding case through organic materials, hence the measuring circuit and protection circuit at the
secondary side will not suffer electric shock caused by insulation breakdown.
4. Fully-automatic vacuum drying treatment system, advanced vacuum drying treatment and oil injection technique ensure the dielectric loss factor (tanδ)of the product to be less than 0.4%.
5. Optimized designs for external insulation make inner and external electric field distribute evenly without discharge.Two type insulators are offered for user.
1).Composite insulator
2).High strength porcelain insulator
6. Secondary terminal for wiring adopts Phoenix special terminal block to facilitate the operations like plugging in,drawing out and wiring.
7. The parts are jointed together by argon are welding.After assembly,the product will be charged with high pressure nitrogen gas for leak detection,radically solve oil leakage problem of oil-immersed product.
8. Hermetically sealed stainless steel metallic bellows is installed on the top,which protect transformer oil from moisture and extend the life time,also
there is a oil level gauge on the bellows for observing the change of oil volume.
9. All adopted insulation parts are environmental protection materials
10. There is a multi function oil drain valve on the base,which makes it more convenient for oil sampling,draining and refilling.
11. The base and secondary box adopt spray painting or hot galvanizing,which gives a high degree of corrosion resistance.
| Rated voltage,kV | 33 or 35 | 66 or 69 | 110 or 115 | 132 or 138 | 150 | 220 or 230 |
| Highest voltage for equipment,kV | 36 or 40.5 | 72.5 | 123 or 126 | 145 | 170 | 245 or 252 |
| Rated frequency, Hz | 50 or 60 | |||||
| Rated power frequency withstand voltage, kV | 95 | 160 | 230 | 275 | 325 | 460 |
| Rated lightning impulse voltage,kV | 200 | 350 | 550 | 650 | 750 | 1050 |
| Flashover distance,mm | 385 | 700 | 1100 | 1300 | 1500 | 2100 |
| Cree.distance,mm | W1:810 W2:1020 W3:1260 |
W1:1450 W2:1820 W3:2250 |
W1:2520 W2:3150 W3:3910 |
W1:2900 W2:3630 W3:4500 |
W1:3400 W2:4250 W3:5270 |
W1:5040 W2:6300 W3:7820 |
| Mechanical load,N | 3000 | 3000 | 3000 | 3000 | 3000 | 4000 |
| Rated primary current, A | 5~5000 | |||||
| Rated secondary current, A | 1; 2; 5 | |||||
| Accuracy class | 0.1; 0.2; 0.5; 0.2S; 0.5S; 5P; 10P; PX. | |||||
| Rated output(recommended value),VA | 1A:10-30 VA 2A:10~30 VA 5A:15~50VA |
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| Instrument security factor FS | 5;10 | |||||
| Accuracy limit factors ALF | 10,15, 20, 25, 30 | |||||
| Short-time thermal current(Maximum),kA | 50kA/3s | |||||
| Accuracy class | TPY |
| Rated ratio, A | 2500~8000/1 |
| Rated resistive burden(Rb),VA | 7.5; 10; 15; 20 |
| Rated symmetrical short-circuit current times (Kssc) | 10; 15; 20 |
| Rated primary time constant (Tp) | 40;60;80;100 |
| Duty cycle: | c-0.1s-O C-0.1(0.04)-O C-0.1(0.04)s-0.5s-0.1(0.04)s-O |
1. Ambient temperature:-50ºC- +45ºC
2. Altitude:≤2000m(If above 2000m,the product will be customized according to user's request)
3. Pollution level: II, III, IV.
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