• Quality Ultra-lightweight Portable Dielectric Withstand Test Transformer with 0-80kV Output Voltage for Hipot Testing factory
  • Quality Ultra-lightweight Portable Dielectric Withstand Test Transformer with 0-80kV Output Voltage for Hipot Testing factory
  • Quality Ultra-lightweight Portable Dielectric Withstand Test Transformer with 0-80kV Output Voltage for Hipot Testing factory
  • Quality Ultra-lightweight Portable Dielectric Withstand Test Transformer with 0-80kV Output Voltage for Hipot Testing factory
  • Quality Ultra-lightweight Portable Dielectric Withstand Test Transformer with 0-80kV Output Voltage for Hipot Testing factory
  • Quality Ultra-lightweight Portable Dielectric Withstand Test Transformer with 0-80kV Output Voltage for Hipot Testing factory

Ultra-lightweight Portable Dielectric Withstand Test Transformer with 0-80kV Output Voltage for Hipot Testing

Basic Properties
Place of Origin: Wuhan, Hubei, China
Brand Name: Huagao Electric
Model Number: DQJZ-5(100)KVA/50-500KV
Trading Properties
Minimum Order Quantity: 1
Price: $1,000 - $20,000
Payment Terms: D/A,D/P
Supply Ability: Five units (sets) can be supplied per week.
Specifications
Power: 200W Output voltage: 0 ~ 80 KV (100KV Special Design)
Weight: 28kg, 15kg Rate of voltage rise: 3.0 KV/s, 5.0 KV/s, 1.0 KV/s, 2KV/s±10%, 0.5 KV/s
Voltage distortion rate: <3% Boosting speed: 2.0-3.5KV/S, 0.5~5KV/S (adjustable)
Product Description
Ultra-lightweight Dielectric Withstand Test Transformer Characteristics
Product Overview

The YDJ AC/DC Power Frequency Dielectric Withstand Test Device is a method for evaluating the insulation strength of electrical equipment. It identifies critical concentrated defects with high risk potential and plays a decisive role in determining whether electrical equipment can remain operational. This device serves as a vital solution for ensuring proper insulation performance and preventing insulation-related accidents. The KDYDJ AC/DC Power Frequency Dielectric Withstand Voltage Test Device is a voltage withstand testing instrument designed in accordance with national power industry standards. It is used to conduct insulation strength tests under specified voltage conditions on various electrical products, components, and insulating materials, enabling the evaluation of product insulation performance, identification of insulation defects, and assessment of overvoltage resistance capability.

Major Advantage

High insulation strength, compact size, easy portability, and reliable quality

Product Features
  • Features high-voltage operation, low-current operation, zero-level indication, power status indicator, operational status indicator, and timing indicator;
  • Features overcurrent protection, zero-position start protection, and audible/visual/verbal alarm alerts
  • Features a new type of time relay with an extended timing range (1S to 99H).
  • The current relay used is more precise and reliable, ensuring the safety of personnel and equipment.
  • Combines hardware and software anti-interference technologies, ensuring stable performance and strong interference resistance.
  • The high-voltage coil of the test transformer features a cylindrical multi-layer tower design, wound with high-quality polyester enameled wire and high-voltage-insulating materials.
  • It features lightweight weight, compact size, easy portability, and superior performance.
  • Test transformers (5 kVA and above) are equipped with movable iron wheels.
  • The test can be conducted on-site without requiring stationary positioning, even under adverse weather conditions.
  • Suitable for AC and DC withstand voltage tests under the specified voltage conditions of primary electrical equipment, to evaluate the insulation strength of the test specimen and identify any insulation defects.
  • The test transformer is equipped with capacitors, silicon diodes, and high-voltage DC microammeters of the same voltage level and capacity, enabling assembly into a high-voltage DC testing system for measuring high-voltage DC leakage currents.
Detailed Parameters
1. Workbench
Parameter Value
Rated capacity 1.5 to 100 kVA
Rated output current 7.5–232.5 A
Rated output voltage 0–220V(single-phase) or 0-430 V(shree-phase)
Power input Three-phase AC 380V ±10% (single-phase AC 220V ±10%); 50Hz ±5 Hz
Input current 7.5–250 A
Timing duration 0–9999 seconds (Special mode supports extended operation)
Voltage accuracy ≤1.0% ±1 digit (F.S)
Current accuracy ≤1.0% ±1 digit (F.S.)
Note If special parameter requirements apply, the design and manufacturing can be carried out according to the user's technical specifications.
2. Insulated oil-immersed test transformer
Parameter Value
Rated capacity 1.5 to 100 kVA
Low-voltage side voltage 400V
Low-voltage side current 7.5–250 A
High-voltage side AC output voltage 0–300 kV
High-voltage side AC output current 0–3000 mA
High-voltage side DC output voltage 510 kV
High-voltage side DC output current 2140.3 mA
Measurement ratio 1000:1
Impedance voltage 4–9%
Output voltage waveform sine wave
Ratio error <±1%
Waveform distortion rate >3%
允许连续满负荷运行时间 <1–2 hours (temperature rise of 50°C)
No-load loss 0.2% to 0.40%
Voltage measurement accuracy 1.0% FS ±3 digits
Current measurement accuracy 1.0% FS ±3 digits
Transformer insulation oil grade Grade 25 insulation oil
Note The parameters of the AC/DC dual-purpose test transformer are as listed in the table above. The rated DC voltage is 1.4 times that of the AC voltage, and the rated DC current is 0.7 times that of the AC current.
Common specifications:
oil immersed type
  • 1,YDJZ-3KVA/50KV
  • 2,YDJZ-5KVA/50KV
  • 3,YDJZ-10KVA/100KV
  • 4,YDJZ-20KVA/100KV
dry-type
  • 5,YDG-3KVA/50KV
  • 6,YDG-5KVA/50KV
  • 7,YDG-10KVA/100KV
  • 8,YDG-20KVA/100KV
gas filled type
  • 9,YDQ-3KVA/50KV
  • 10,YDQ-5KVA/50KV
  • 11,YDQ-10KVA/100KV
  • 12,YDQ-20KVA/100KV
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