| MOQ: | 1 |
| Price: | Negotiable |
| Standard Packaging: | Plywood Case |
| Delivery Period: | 30 Days |
| Payment Method: | T/T |
| Supply Capacity: | 20 Sets Per Month |
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 |
| MOQ: | 1 |
| Price: | Negotiable |
| Standard Packaging: | Plywood Case |
| Delivery Period: | 30 Days |
| Payment Method: | T/T |
| Supply Capacity: | 20 Sets Per Month |
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 |