Application
improved the similar products a lot and made this new product, which adopts the insulation strength test under DC high voltage of all kinds of HV electric device, electric components, and insulation material in power system, mine industry, researching department.
Introduction
Dry Type Test Transformer series produced by our company completely overcome the old-fashioned shortcoming that it is bulky, heavy. Equipped with high-voltage silicon stack produced by our company, the instrument can provide DC high voltage test power supply. Together with the control cabinet (desk), automatic protection micro-ammeter, sphere gap and so on, the instrument especially suits for on-site test and it makes the heavy work become convenient, fast, easy, flexible, and more efficient. Therefore, it is highly praised and appreciated by the customers coming from power systems and large-scale factory and mining enterprises.
GYD series product adopts new material and technology to reduce the volume and weight without compromising performance. It adopts coil winding epoxy vacuum casting and CD - type core wound by cold rolled silicon steel, which reduce the magnetic flux leakage.
No need silicone stack for DC withstand voltage test, can get the DC only if install the matching DC HV silicone stack into HV end.
Features
2. Wiring is simple and intuitive, easy to use
3. Insulation reliability.
4. With over-voltage protection function.
Impedance voltage | ≤12% |
Output voltage waveform | Sine wave |
Surface temperature rise | 55 |
No-load current | 4% |
Model | Capacity(kVA) | Input voltage(V) | Output voltage(kV) | Output current(mA) | Dimension (mm) | Weight (kg) |
GYD-1.5/50 | 1.5 | 200 or 400 | 50 | 30 | 260×240×450 | 12 |
GYD-3/50 | 3 | 60 | 330×280×510 | 25 | ||
GYD-5/50 | 5 | 100 | 330×280×510 | 37 | ||
GYD-10/50 | 10 | 200 | 360×350×850 | 32 | ||
GYD-15/50 | 15 | 300 | 360×350×950 | 72 | ||
GYD-20/50 | 20 | 400 | 360×350×1000 | 78 | ||
GYD-25/50 | 25 | 500 | 430×450×1100 | 82 | ||
GYD-30/50 | 30 | 600 | 430×450×1200 | 120 | ||
GYD-5/100 | 5 | 200 or 400 | 100 | 50 | 360×350×1000 | 72 |
GYD-10/100 | 10 | 100 | 360×350×1100 | 75 | ||
GYD-15/100 | 15 | 150 | 360×350×1200 | 78 | ||
GYD-20/100 | 20 | 200 | 430×450×1200 | 82 | ||
GYD-25/100 | 25 | 250 | 430×450×1200 | 110 | ||
GYD-30/100 | 30 | 300 | 430×450×1200 | 120 | ||
GYD-15/120 | 15 | 120 | 125 | 360×350×1100 | 85 | |
GYD-20/120 | 20 | 160 | 430×450×1200 | 90 | ||
GYD-25/120 | 25 | 200 | 430×450×1200 | 115 | ||
GYD-30/120 | 30 | 250 | 430×450×1200 | 130 |
Accessory
Serial Number | Name | Amount |
1 | Test transformer | one |
2 | Specification | one |
3 | Inspection Report | one |
4 | Certification | one |











1. How can I choose the suitable one?
Dear customer, please tell us your detailed requirements by mail or online, we will recommend the suitable one as your request.
2.What is the mini order quantity?
MOQ: generally 1 unit/piece/set
3. How can I pay?
Dear customer, we accept many payment term, such as T/T, Western Union...
4.Is will be broken during transport?
Dear customer, please do not worry, we do standard export package.
5.What should I do if I do not know how to use?
Dear customer, please do not worry, manual user will be sent together, you can also contact us with more technological support.







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