Switch Contact Pressure Tester

Switch Contact Pressure Tester

The MOEORW-W5180 switch contact pressure tester (or contact pressure gauge/switch)is a smart pressure tester specifically designed for power distribution network contact points. It accurately measures contact pressure, overcomes the limitations of circuit resistance measurement, is compatible with multiple contact specifications, and is easy to operate.

It is widely used in the maintenance, commissioning and acceptance of high-voltage circuit breakers and disconnectors in power systems to ensure the safe and stable operation of equipment.

Distribution network plum blossom contact circuit breakers are commonly used high-voltage switchgear. Because they operate in enclosed cabinets, direct monitoring is difficult. The contact springs are prone to heat annealing, leading to pressure drop, a vicious cycle of overheating, and even burn-out accidents. During maintenance, simply replacing failed springs or checking circuit resistance cannot accurately determine the contact status of the contact fingers. The circuit resistance margin is large and cannot reflect changes in contact resistance and differences in contact finger pressure, easily causing poor contact and overheating.

To address this issue, our company developed a dedicated intelligent plum blossom contact pressure tester. By inserting a fixed-distance sensor into the stationary contact, the tester can display and memorize the contact pressure of the finger. The test is accurate, easy to operate, and has good repeatability, effectively solving the problem of on-site plum blossom contact pressure detection.

• Operating environment: -10～40℃, ≤80%RH, atmospheric pressure 86～106kPa
• Power supply voltage: Internal lithium battery: ≤20W
• Measurement range: ≤500N; Error: ≤±(1%rdg+1N)
• Plum blossom contact: Standard diameters are 35mm, 49mm, 55mm, 79mm, and 109mm.
• Note: The size of the plum blossom contact can be customized according to the actual site conditions.
• Built-in lithium battery, power supply time: ≥6 hours (customizable).
• Charging method: Charge using a dedicated charger connected to the lithium battery charging port on the panel;
• Sensor signal cable length: 3m
• Insulation resistance > 2MΩ
• The dielectric strength of the power supply is 1.5 kV withstand voltage to the chassis at power frequency for 1 minute without flashover or arcing.

√ It is highly targeted, solving the industry pain point of inaccurate pressure detection of high-voltage plum blossom contacts and making up for the limitations of loop resistance measurement.

√ It has high measurement accuracy, a range of ≤500N, an error of ≤±(1%rdg+1N), good repeatability, and can record the maximum/stable value.

√ It has wide adaptability, supports 35/49/55/79/109mm standard Torx contacts, and the size can be customized. Accessories can be finely adjusted by ±0.1mm.

√ Easy to operate, with a color touchscreen and Chinese/English language switching, menu-driven operation, sensor insertion measurement, and simple to learn.

√ It is fully functional, capable of storing/printing/deleting historical data, supporting online communication, and featuring a built-in printer and USB/RS-232 interface.

√ Durable battery life, built-in lithium battery provides ≥6 hours of continuous use, excellent insulation and pressure resistance, suitable for on-site environments from -10 to 40℃.