I. Overview
The main features and functions of the YDC series-excited high-voltage test transformer are the same as those of the YDJ/TDM series. The function of the transformer is different from that of the high-voltage test transformer because the whole test device consists of several single test transformers. The single test transformer has small capacity, low voltage and light weight, which is convenient for transportation and installation. Since it can be connected in series to a single test transformer output voltage several times higher, it can be separated into several sets of single test transformers for separate use.
2. Characteristics
In the basic schematic diagram of the cascade test transformer, the low voltage power supply is applied to the primary winding a1x1 of the test transformer I, and the output voltages of the single test transformers I, II, and III are all V. The field windings A1 and C1 supply power to the primary winding of the second stage test transformer II; the field windings A2 and C2 of the second stage test transformer II supply power to the primary winding of the third stage test transformer III. The tank of the second stage test transformer II and the third stage test transformer III of the vortex flowmeter are respectively at a high potential of 1V and 2V to the ground, so the box is insulated to the ground, and the box of the test transformer I is Grounded.
Precautions for use
1. The test transformer should be used in conjunction with the operation box (stage). For the operation method of the operation box (table), please refer to the instruction manual of the operation box (table).
2. The transformer housing and high voltage tail must be grounded. To ensure safety, sufficient distance must be maintained between the tester and other equipment under test and the test transformer.
3. The output of the test transformer should generally be connected in series with a current limiting resistor to protect the safety of the equipment.
This series of control box (set) is composed of contact type voltage regulator (50kVA or more for electric column type voltage regulator) and its control, protection, measurement and signal circuits. It is to adjust the voltage regulator (that is, the input voltage of the test transformer) by connecting 220V or 380V power frequency power supply to obtain the required test high voltage voltage value.
YDJ series oil-immersed high-voltage test transformer Product introduction: Applicable to power system, industrial and mining enterprises, transportation, post and telecommunications departments, scientific research units, etc., for various high-voltage electrical equipment, electrical components, insulating materials, dielectric strength under high frequency or DC high voltage test. Product nickname: oil type test transformer, oil type change, oil immersed high pressure test transformer, oil type high voltage test transformer, high voltage test transformer, electric high voltage test transformer, ultralight high voltage test transformer, cascade high voltage test transformer, AC and DC high voltage Test transformer, high voltage booster, high voltage withstand voltage, high voltage withstand voltage characteristics: â—† excellent material selection, reliable quality, good annual stability; â—† large voltage margin, low electric power, small discharge; â—† using new insulation materials Small in size and light in weight. Technical parameters: â—† rated voltage: AC 50~400kV DC 70~420kV; â—† rated capacity: 1~400kVA; â—† Product category: AC, AC, AC, AC, AC and DC.
The high-voltage experimental transformer has been improved to produce a new type of product. This series of products has the characteristics of small size, light weight, compact structure, complete functions and convenient use. It is used in electric power, industrial and mining, scientific research and other departments. It is an indispensable instrument for high-voltage test for power frequency withstand voltage test and DC leakage test for various high-voltage electrical equipment, electrical components and insulating materials.
The AC high-voltage test transformer is a new type of product that has been improved and produced according to the YDJ(G) type high-voltage test transformer of the same kind, according to the national standard DL/T848.2-2004 of the test transformer. Light weight, compact structure, complete functions and convenient use. It is used in electric power, industrial and mining, scientific research and other departments. It is an indispensable instrument for high-voltage tests on various high-voltage electrical equipment, electrical components and insulating materials.
The main features and functions of the YDC series-excited high-voltage test transformer are the same as those of the YDJ/TDM series. The function of the transformer is different from that of the high-voltage test transformer because the whole test device consists of several single test transformers. The single test transformer has small capacity, low voltage and light weight, which is convenient for transportation and installation. Since it can be connected in series to a single test transformer output voltage several times higher, it can be separated into several sets of single test transformers for separate use.
2. Characteristics
In the basic schematic diagram of the cascade test transformer, the low voltage power supply is applied to the primary winding a1x1 of the test transformer I, and the output voltages of the single test transformers I, II, and III are all V. The field windings A1 and C1 supply power to the primary winding of the second stage test transformer II; the field windings A2 and C2 of the second stage test transformer II supply power to the primary winding of the third stage test transformer III. The tank of the second stage test transformer II and the third stage test transformer III of the vortex flowmeter are respectively at a high potential of 1V and 2V to the ground, so the box is insulated to the ground, and the box of the test transformer I is Grounded.
Precautions for use
1. The test transformer should be used in conjunction with the operation box (stage). For the operation method of the operation box (table), please refer to the instruction manual of the operation box (table).
2. The transformer housing and high voltage tail must be grounded. To ensure safety, sufficient distance must be maintained between the tester and other equipment under test and the test transformer.
3. The output of the test transformer should generally be connected in series with a current limiting resistor to protect the safety of the equipment.
This series of control box (set) is composed of contact type voltage regulator (50kVA or more for electric column type voltage regulator) and its control, protection, measurement and signal circuits. It is to adjust the voltage regulator (that is, the input voltage of the test transformer) by connecting 220V or 380V power frequency power supply to obtain the required test high voltage voltage value.
YDJ series oil-immersed high-voltage test transformer Product introduction: Applicable to power system, industrial and mining enterprises, transportation, post and telecommunications departments, scientific research units, etc., for various high-voltage electrical equipment, electrical components, insulating materials, dielectric strength under high frequency or DC high voltage test. Product nickname: oil type test transformer, oil type change, oil immersed high pressure test transformer, oil type high voltage test transformer, high voltage test transformer, electric high voltage test transformer, ultralight high voltage test transformer, cascade high voltage test transformer, AC and DC high voltage Test transformer, high voltage booster, high voltage withstand voltage, high voltage withstand voltage characteristics: â—† excellent material selection, reliable quality, good annual stability; â—† large voltage margin, low electric power, small discharge; â—† using new insulation materials Small in size and light in weight. Technical parameters: â—† rated voltage: AC 50~400kV DC 70~420kV; â—† rated capacity: 1~400kVA; â—† Product category: AC, AC, AC, AC, AC and DC.
The high-voltage experimental transformer has been improved to produce a new type of product. This series of products has the characteristics of small size, light weight, compact structure, complete functions and convenient use. It is used in electric power, industrial and mining, scientific research and other departments. It is an indispensable instrument for high-voltage test for power frequency withstand voltage test and DC leakage test for various high-voltage electrical equipment, electrical components and insulating materials.
The AC high-voltage test transformer is a new type of product that has been improved and produced according to the YDJ(G) type high-voltage test transformer of the same kind, according to the national standard DL/T848.2-2004 of the test transformer. Light weight, compact structure, complete functions and convenient use. It is used in electric power, industrial and mining, scientific research and other departments. It is an indispensable instrument for high-voltage tests on various high-voltage electrical equipment, electrical components and insulating materials.
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