Stromwandler SWP P9.55-2 Module

The Stromwandler SWP P9.55-2 is a current transformer module (“Stromwandler” in German) used to convert high primary alternating current (AC) into a scaled, standardized lower secondary current for measurement, monitoring, protection, and control applications in electrical systems. Current transformers like the SWP P9.55-2 are designed to provide electrical isolation between high‑power circuits and measuring instruments, metering devices, protective relays, or control systems. These SWP P9.55-2 modules are widely used in industrial power distribution, switchgear, motor control centers, and energy monitoring systems where accurate current measurement and electrical isolation are required.

Frequently asked questions：

Q1: What is the SWP P9.55-2?
A1: The SWP P9.55-2 is a Stromwandler (current transformer) module used for measuring AC currents in industrial electrical systems and providing isolated secondary outputs for monitoring and protection devices.
Q2: What secondary current outputs does it provide?
A2: The SWP P9.55-2 module offers 1 A or 5 A secondary current outputs, compatible with standard measurement and protection equipment.
Q3: What is the SWP P9.55-2 accuracy class of the module?
A3: The SWP P9.55-2 is available in Class 0.5 or Class 1, ensuring precise current measurement according to industry standards.
Q4: What insulation voltage can it handle?
A4: The SWP P9.55-2 module supports an insulation voltage of up to approximately 0.72 kV, suitable for medium-voltage applications.
Q5: What test voltage is specified?
A5: The test voltage is up to approximately 3 kV, allowing safe verification and compliance testing.

Product Applications

Petroleum, Petrochemicals and Chemicals: Used for monitoring the temperature, pressure and liquid level of reaction vessels and storage tanks. The multi-loop feature of P955-2 can simultaneously display multiple parameters, facilitating centralized management by the central control system.
Power and Energy Management: As a secondary instrument, it receives sensor signals and performs alarm control in boiler monitoring and turbine operation parameter monitoring.
Metallurgy and Steel: Used for temperature inspection and process control of blast furnaces and heating furnaces.
Mechanical Manufacturing and Heat Treatment: Responsible for precise temperature control at multiple points in industrial electric furnaces and constant temperature boxes.
Environmental Protection and Water Treatment: Monitoring the status of water pumps, water pool levels, flow meter readings, etc.

Application Advantages
High Precision: Suitable for precise manufacturing environments with strict parameter requirements.
Strong Anti-interference Capability: Optimized design for industrial environments with significant electromagnetic interference.
Flexible Configuration: Supports switching of multiple input signal types, enabling adaptation to different sensors without the need to replace hardware.

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