The operation box (platform) of the power frequency withstand voltage test device is designed and produced according to the unique scope of use of high-voltage test transformers. Its functions include:
① Overcurrent protection
② Timing sound and light alarm;
③ High voltage direct reading;
④ Voltage withstand test time can be freely set (digital display)
⑤ Mobile structure (desktop)
Test transformer, also known as booster, is a basic testing equipment for users such as power plants, power supply and distribution systems, and scientific research institutions. It is used to conduct insulation strength tests on various electrical products, electrical components, insulation materials, etc. under specified voltages, assess the insulation level of the products, discover insulation defects of the tested products, and measure the ability to withstand overvoltage.
| Technical parameters of operation box | |||||||
| specifications | capacity（kVA） | 电源 | power supply | weight（kg） | |||
| Number of phases | voltage（V） | frequency（Hz） | voltage（V） | current（A） | |||
| LDIXC-3 | 3 | 1 | 220 | 50 | 240 | 13.6 | 17 |
| LDIXC-5 | 5 | 1 | 220 | 50 | 240 | 22.7 | 20 |
| LDITC10 | 10 | 1 | 220 | 50 | 240 | 45.5 | 40 |
| LDITC-15 | 15 | 1 | 220 | 50 | 240 | 68 | 50 |
| 380 | 430 | 39 | |||||
| LDITC-20 | 20 | 2 | 380 | 50 | 430 | 52.6 | 55 |
| LDTC-30 | 30 | 2 | 380 | 50 | 430 | 78.9 | 79 |
| LDITC-50 | 50 | 2 | 380 | 50 | 430 | 131.5 | |
| Test transformer parameters | |||||
| Model | Capacity(KVA) | Output Voltage(KV) | Output Current(mA) | Input Voltage(V) | Input Current(A) |
| LD-YD-1.5KVA | 1.5 | 50 | 30 | 250 | 6 |
| LD-YD-2KVA | 2 | 50 | 40 | 250 | 8 |
| LD-YD-3KVA | 3 | 50 | 60 | 250 | 12 |
| LD-YD-5KVA | 5 | 50 | 100 | 250 | 20 |
| 100 | 50 | ||||
| LD-YD-6KVA | 6 | 50 | 120 | 250 | 24 |
| 100 | 60 | ||||
| LD-YD-10KVA | 10 | 50 | 200 | 250 | 40 |
| 450 | 22.2 | ||||
| 100 | 100 | 250 | 40 | ||
| 450 | 22.2 | ||||
| 150 | 66.7 | 250 | 40 | ||
| 450 | 22.2 | ||||
| LD-YD-15KVA | 15 | 50 | 300 | 250 | 60 |
| 450 | 33.3 | ||||
| 100 | 150 | 250 | 60 | ||
| 450 | 33.3 | ||||
| 150 | 100 | 250 | 60 | ||
| 450 | 33.3 | ||||
| LD-YD-20KVA | 20 | 50 | 400 | 200 | 100 |
| 400 | 50 | ||||
| 100 | 200 | 250 | 80 | ||
| 400 | 44.4 | ||||
| 150 | 133.3 | 250 | 80 | ||
| 400 | 44.4 | ||||
| LD-YD-30KVA | 30 | 50 | 600 | 450 | 66.7 |
| 100 | 300 | ||||
| 150 | 200 | ||||
| LD-YD-40KVA | 40 | 50 | 800 | 450 | 88.9 |
| 100 | 400 | ||||
| 150 | 266.7 | ||||
| LD-YD-50KVA | 50 | 50 | 1000 | 600 | 83.3 |
| 100 | 500 | ||||
| 150 | 333.3 | ||||
| LD-YD-75KVA | 75 | 50 | 1500 | 600 | 108.3 |
| 100 | 750 | ||||
| 150 | 500 | ||||
| LD-YD-90KVA | 90 | 50 | 1800 | 600 | 150 |
| 100 | 800 | ||||
| 150 | 600 | ||||
| LD-YD-100KVA | 100 | 50 | 2000 | 600 | 166.7 |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. 2. To learn more about Longdian products, please enter the product center. Service Hotline: 400-6727-238
The operation box (platform) of the power frequency withstand voltage test device is composed of a contact type voltage regulator (electric column voltage regulator above 50kVA) and its control, protection, measurement, and signal circuits. It is achieved by connecting to a 220V or 380V power supply and adjusting the voltage regulator (i.e. the input voltage of the test transformer) to obtain the required high voltage value for the test.
The product core of the power frequency withstand voltage test device is a single-phase core type, made of high-quality cold-rolled oriented silicon steel sheets stacked together, and the fastening method uses steel as a clamp. The high-voltage coil is a cylindrical multi-layer tower, made of high-quality polyester enameled wire and high voltage insulation material wound around it. The low-voltage coil is outside. The instrument coil is an independent winding, generally 100V. The shell is octagonal, and test transformers above 10KVA are equipped with movable iron wheels. It has the characteristics of light weight, small size, easy mobility, and superior performance.
