| Customization: | Available |
|---|---|
| Application: | Electronic, Instrument, Position Sensor, Audio, Lighting |
| Type: | Voltage 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. The product adopts box-type structure. Main body is placed inside the box. Insulator adopts silicone rubber composite or high strength porcelain.Top is equipped with primary terminals.
2. It has a pressure-relief device with pressure blasting (release pressure) of 0.8MPa at side panel,free oil,no risk of explosion and free maintenance.
3. The layer insulation consists of high strength composite diamond polyester film and gas SF6,has the characters of no aging and insulation restoring.
4. Density meter is mounted on the base which can show internal gas pressure (display value automatically converted to internal gas pressure at 20ºC) and density,when transformer internal pressure drops down to alarm level,gas should be replenished.
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.Sealing ring adopts special material for SF6 gas which is applicable to a area with large temperature difference and harsh environment , annual leakage rate is less than 0.5%
7.This product adopts magnetic material with high saturation magnetic density, advanced technology and excellent insulation design make our product present a capacitive status under special voltage.
8.All adopted insulation parts are environmental protection materials.
9.Secondary terminal board is made of epoxy casting,the sealing performance is more reliable.
10.The base uses spray painting or hot galvanizing,which gives a high degree of corrosion resistance.
11.Fasteners and nameplate are stainless steel.
| Rated primary voltage,kV | 66 or 69 | 110 or 115 | 132 or 138 | 150 | 220 or 230 | ||
| Highest voltage for equipment,kV | 72.5 | 123 or 126 | 145 | 170 | 245 or 252 | ||
| Rated frequency,Hz | 50 or 60 | ||||||
| Rated power frequency withstand voltage,kV | 140/160 | 230 | 275 | 325 | 460 | ||
| Rated lightning impulse voltage,kV | 325/350 | 550 | 650 | 750 | 1050 | ||
| Flashover distance,mm | 780 | 1050 | 1300 | 500 | 2000 | ||
| External insulation creepage distance,mm | 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 |
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| Mechanical load,N | 1250 | 1250 | 1250 | 250 | 1250 | ||
| Secondary terminal marking | 1a-In | 2a-2n | da-dn | ||||
| Accuracy class | 0.2 | 0.5 | 3P | ||||
| Rated output,VA | 50 | 50 | 100 | ||||
| 75 | 75 | 150 | |||||
| 100 | 100 | 300 | |||||
| Thermal limiting output,VA | 1000;2000 | ||||||
| Rated voltage factor | 1.2/continuous;1.9/8h(66kV) 1.2/continuous;1.5/30s(110~220kV) |
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| Rated gas pressure,MPa | 0.5 | ||||||
| Gas-supply pressure,MPa | 0.45 | ||||||
1. Ambient temperature:-35ºC- +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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