Product introduction
The primary injection test set is a high-current test device. The device injects a large current into the device under test (usually a high-voltage switch, circuit breaker, busbar connection, relay protection device, transformer, etc.) and measures the corresponding output current, voltage and resistance to evaluate the conductivity and working status of the device.
Product features
High-precision Measurement
Our primary injection test set uses a 24-bit high-precision ADC, which is several times more accurate than the traditional 16-bit ADC. It can capture tiny voltage and current fluctuations and effectively prevent potential faults. Taking the DDG-500 model as an example, its secondary voltage measurement range can reach 380V, with an accuracy of up to ±0.5%, far exceeding the ±1% accuracy level commonly seen in the market.
Wide Test Range
Our primary injection test set covers a capacity range of 3KVA to 60KVA, which can meet the test needs of power equipment of different sizes. For example, the DDG-10000 model has a test capacity of up to 10,000V·A, which can be used for high-current testing of high-voltage substations and industrial-grade high-power equipment. In contrast, general testers on the market can only cover up to 8000V·A, so users may need multiple devices to meet different testing needs.
Safety Assurance
Our primary injection test set adopts multiple safety protection mechanisms. All models are equipped with overcurrent, overvoltage and short-circuit protection functions, with a response time of less than 10ms, ensuring that the power supply can be cut off in time under abnormal conditions. These functions control the failure rate of the equipment to less than 0.5%, greatly improving the safety of equipment use.
Technical Parameters of Primary Injection Test Set
|
Model |
Capacity (KVA) |
Junior Range |
Secondary Range
|
dimensions (mm) L×W×H |
Weight (KG) |
Structural Style |
||
|
V1 |
A1 |
V2 |
A2 |
|||||
|
DDG-500 |
3 |
220 |
15 |
6 |
500 |
430×338×550 |
45 |
Integrated structure |
|
DDG-1000 |
6 |
220 |
27 |
6 |
1000 |
500×380×600 |
65 |
Integrated structure |
|
DDG- 2000 |
12 |
380 |
31.6 |
6 |
2000 |
580×400×750 |
105 |
Integrated structure |
|
DDG- 2500 |
15 |
380 |
39.5 |
6 |
2500 |
600×430×790 |
145 |
Integrated structure |
|
DDG- 3000 |
18 |
380 |
47 |
6 |
3000 |
630×440×810 |
170 |
Integrated structure |
|
DDG- 4000 |
24 |
380 |
63 |
6 |
4000 |
640×450×820 |
180 |
Integrated structure/ split Structure |
|
DDG- 5000 |
30 |
380 |
79 |
6 |
5000 |
600×430×900 300×500×500 |
145 135 |
Split Structure |
|
DDG- 6000 |
36 |
380 |
95 |
6 |
6000 |
600×430×900 300×500×500 |
150 140 |
Split Structure |
|
DDG- 8000 |
48 |
380 |
126 |
6 |
8000 |
600×450×950 350×550×550 |
180 |
Split Structure |
|
DDG- 10000 |
60 |
380 |
158 |
6 |
10000 |
800×600×1100 380×550×600 |
200 |
Split Structure |
Precautions for use and maintenance of Primary Injection Test Set
1. During the unpacking inspection, it is necessary to check whether the main circuit wiring terminals are loose and whether the voltage regulator brush is in good contact.
2. When not in use for a long time, a 500V megohmmeter should be used to check the insulation resistance of the main circuit to ground before use, and the resistance should not be less than 0.5 megohms.
3. The input voltage should match the voltage values on the nameplate (-220V, -380V), with a difference of ± 10% and a frequency of 50Hz.
4. The current switch is not allowed to operate with load.
5. When operating, the handwheel should be rotated evenly and slowly to avoid damaging the regulator.
6. When working at full load, the working time should not exceed 5 minutes, and the continued working time should be less than 2.5 minutes, but the working cycle should be greater than 10 minutes.
7. The casing of the current collector has a grounding terminal, which should be well grounded during use.
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