Sinuo Testing Equipment Co. , Limited
| Transformer Specification | 220V to 6000V |
| Delivery Time | 30 Days |
| Power Channel | 1 power channel |
| Working Stations | 5 test stations |
| Protective Resistor | 2.5 kV, 3.5 kV and 4.5 kV |
| Payment Terms | T/T |
| Electrodes Distance | 50 ± 0.5 mm |
| Supply Ability | 20 Sets Per Month |
| Inclination Angle | 45° ± 2° |
| Test Voltage | AC 1000 V ~ 6000 V |
| Packaging Details | Plywood Case |
| Power Wirewound Non-Inductive | 6 kV: 33 kΩ/200 W |
| Model Number | SN774B |
| Certification | Calibration Certificate (Cost Additional) |
| Brand Name | Sinuo |
| Place of Origin | China |
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Product Specification
| Transformer Specification | 220V to 6000V | Delivery Time | 30 Days |
| Power Channel | 1 power channel | Working Stations | 5 test stations |
| Protective Resistor | 2.5 kV, 3.5 kV and 4.5 kV | Payment Terms | T/T |
| Electrodes Distance | 50 ± 0.5 mm | Supply Ability | 20 Sets Per Month |
| Inclination Angle | 45° ± 2° | Test Voltage | AC 1000 V ~ 6000 V |
| Packaging Details | Plywood Case | Power Wirewound Non-Inductive | 6 kV: 33 kΩ/200 W |
| Model Number | SN774B | Certification | Calibration Certificate (Cost Additional) |
| Brand Name | Sinuo | Place of Origin | China |
| High Light | High Voltage Leakage Tracking Test Apparatus ，Insulating Material Leakage Tracking Test Apparatus | ||
The SN774B high-voltage leakage tracking test instrument is designed and manufactured in compliance with GB/T 6553-2024 and IEC 60587:2022 standards. This equipment evaluates the resistance to tracking and erosion of electrical insulating materials, including thermosetting/thermoplastic plastics, insulators, and cable insulating materials under power frequency high voltage with contaminated electrolyte.
Utilizing Method 1: Constant Voltage Method as specified in Clause 6.4 of GB/T 6553-2024 (IEC 60587:2022), this apparatus is suitable for inclined specimens with liquid contaminants for tracking and erosion resistance grading. It supports common grading voltages of 2.5 kV, 3.5 kV, and 4.5 kV.
| Parameter | Specification |
|---|---|
| Rated Voltage | AC 220V ±10%, 50 Hz |
| Power Frequency Range | 45 Hz ~ 65 Hz |
| Total Harmonic Distortion of Sine Voltage | ≤ 5% |
| Voltage Regulator | 0~250V adjustable, capacity: 5 kVA |
| Parameter | Specification |
|---|---|
| Test Voltage | AC 1000 V ~ 6000 V, continuously stepless adjustable |
| Voltage Stabilization Accuracy | ≤ ±5% |
| Transformer Specification | 220V to 6000V transformation, capacity ≥ 5 kVA |
| Short-Circuit Current of Single Specimen Output | ≥ 100 mA |
| Series Protective Resistor | 2.5 kV: 1 kΩ/200 W 3.5 kV: 1.5 kΩ/200 W 4.5 kV: 3 kΩ/200 W 6 kV: 33 kΩ/200 W |
| Over-Current Protection | When the current of high-voltage loop reaches 60 mA, the delay relay acts after 3 s ±1 s, automatically cuts off high voltage and triggers audible & visual alarm |
| Voltage Display | Displayed via touch screen |
| Power Channel & Working Stations | 1 power channel; 5 test stations with automatic switching for sequential testing |
| Component | Specification |
|---|---|
| Electrode Material & Thickness | Stainless steel electrode, thickness: 0.5 mm (one pair of upper and lower electrodes, manufactured per standard Figure 6) |
| Spacing Between Upper and Lower Electrodes | 50 ± 0.5 mm |
| Specimen Inclination Angle | The mounting surface forms an angle of 45° ±2° with the horizontal plane, adjustable and lockable |
| Standard Specimen Dimension | ≥ 50 mm * 120 mm * 6 mm |
| Working Station Configuration | 5 sets of fixture clamps; 1 high-voltage supply loop for sequential power supply to 5 specimens, equipped with over-current protection |
Prepared with distilled water, the mixed solution contains (0.1 ± 0.002) % analytical grade ammonium chloride (NH₄Cl) and (0.02 ± 0.002) % isooctylphenoxy polyethoxy ethanol (non-ionic wetting agent) by mass fraction.
Preparation method: Add 2000 mL distilled water into a measuring cup, weigh 2 g analytical grade NH₄Cl solid and 0.4 g isooctylphenoxy polyethoxy ethanol, pour into distilled water and stir evenly with a glass rod.
Filter paper thickness: 0.2 ± 0.02 mm, cut into specified shape and placed between upper electrode and specimen. Use 8 layers if thicker filter paper is adopted.
Drip drive: 1 group, switching control, using a precision peristaltic pump for dripping, flow rate range 0.00185～20 ml/min, operating speed 0.1～50 rpm, flow accuracy error: <0.2%.
| Component | Specification |
|---|---|
| Test Chamber Material & Dimension | Inner chamber: 304 stainless steel; Dimension (W*D*H): 800*750*850 mm |
| Observation Window | Front door with tempered explosion-proof observation window |
| Exhaust System | Built-in forced exhaust system for automatic discharge of test waste gas |
| Waste Liquid Recovery | Waste liquid tank at chamber bottom, waste liquid is automatically collected into waste liquid barrel |
| Safety Protection | High-voltage interlock door (high voltage cuts off once door is opened); Complete equipment grounding; Insulation protection for high-voltage area |
| Operating Ambient Conditions | Temperature: 23 ℃ ±2 ℃; Humidity: 45% ~ 75% RH |
| Parameter | Specification |
|---|---|
| Overall Dimension (L*W*H) | Approx. 900*800*1550 mm |
| Net Weight | Approx. 185 kg |
Company Details
Business Type:
Manufacturer
Total Annual:
2000000 USD-3000000
Employee Number:
30~50
Ecer Certification：
Verified Supplier
We Turn Testing Standards into Working Test Systems Sinuo designs and manufactures testing equipment and integrated laboratory systems for manufacturers, quality inspection institutes, independent laboratories, research organizations and universities. With more than 15 years of testing-equipment ... We Turn Testing Standards into Working Test Systems Sinuo designs and manufactures testing equipment and integrated laboratory systems for manufacturers, quality inspection institutes, independent laboratories, research organizations and universities. With more than 15 years of testing-equipment ...
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