S40A Protection Relay Test Equipment

The S40A Protection Relay Test Equipment is a high-performance and compact testing solution designed for accurate testing of protection relays in substations, power plants, and industrial electrical systems. Engineered for field and laboratory applications, the S40A provides stable output, precise control, and reliable test results, making it an ideal choice for protection engineers and maintenance professionals.

With its integrated design and user-friendly control interface, the S40A allows engineers to perform relay tests efficiently without complex wiring or additional external instruments. The system supports both manual and automatic testing modes, ensuring flexibility for different testing requirements.

Key Features & Advantages

• Dedicated Protection Relay Testing: Specifically designed for testing protection relays with high accuracy and repeatability.
• Integrated Control Panel: Built-in control panel with clear display enables real-time monitoring of voltage, current, frequency, and timing values.
• High Output Stability: Delivers precise and stable test signals to ensure dependable relay performance evaluation.
• Compact & Portable Design: Lightweight and rugged construction makes it suitable for on-site field testing as well as workshop use.
• Reduced Wiring Complexity: Eliminates the need for external meters, minimizing setup time and testing errors.

Supported Relay Testing Applications

The S40A Protection Relay Test Equipment supports comprehensive testing of various protection relays, including:

• Overcurrent relays
• Earth fault relays
• Voltage relays (over / under voltage)
• Frequency relays (over / under frequency)
• Time-delay protection relays
• Thermal protection relays

It is also suitable for routine commissioning, maintenance, and periodic inspection of protection systems.

Advanced Testing Functions

In addition to relay testing, the S40A supports multiple electrical test functions such as:

• Current and voltage injection testing
• Pickup and drop-off value measurement
• Time characteristic testing
• Trip time measurement
• Functional verification of protection circuits

These features ensure complete validation of relay performance under real operating conditions.

PC Connectivity & Report Management

The S40A is equipped with a communication interface for PC connection, allowing users to generate, store, and manage test reports digitally. The dedicated PC software helps engineers document test results, analyze trends, and maintain compliance records efficiently.

Typical Applications

• Power substations
• Transmission & distribution networks
• Power generation plants
• Industrial electrical installations
• Relay manufacturing and testing laboratories

Why Choose S40A Protection Relay Test Equipment?

• Accurate and repeatable test results
• Efficient on-site testing
• Easy operation with minimal training
• Durable design for field environments

Product Details: