Quotation for SEL microcomputer protection device in the United States

The original SEL relay SEL-787 from the United States is now available in stockOur products are complete, of excellent quality, stable in performance, sturdy and durable, energy-saving and environmentally friendly, affordable in price, high in cost-effectiveness, complete in specifications, and highly favored by customers. We are stable, durable, energy-saving and environmentally friendly. Welcome to order by phone.

SELSEL-787 has been sourced from the United States for over a decade, with good prices and short delivery times. It is a first-hand source of goods and supports after-sales installation and debugging. SELSEL-787 Shanghai News Center and SELSEL-787 Shanghai Chending professional sales are available. Please feel free to inquire for more details.

Our company specializes in the full range of SEL products in the United States, with regular models in stock. If you have any SEL needs in the United States, please feel free to contact us at any time. Shanghai Chending distributes the American original SEL-787 series transformer protection relay. Overview of the details of the American SEL-787 series protection relay: Two winding, three winding, and four winding current differential, overcurrent, voltage, and circuit breaker fault protection applications. Two winding, three winding, or four winding double slope differential protection with phase, negative sequence, residual, and neutral overcurrent components is used for backup protection. You can set elements in the SEL-787-3E/-3S model to perform voltage and frequency based protection. The circuit breaker fault protection function comes standard with up to four three pole circuit breakers. Safety and reliability provide significant safety in the event of external faults and transformer excitation inrush currents. The SEL-787, by combining harmonic blocking and harmonic suppression differential components, can quickly detect internal faults under power on or normal operation conditions. Transformer monitoring sets the SEL-787 to record and accumulate fault values for use in SELogic control equations or manual monitoring. In addition, you can use the optional 4-20 mA analog input or RTD thermal input to monitor the ambient temperature, LTC tank and transformer oil temperature to extend the service life of the transformer. The operator control uses eight programmable front panel buttons, each with two programmable three color LEDs, suitable for various applications, including easy tripping and closing control as well as status indication of circuit breakers.

The original SEL relay SEL-787 from the United States is now available in stock

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SEL-2407 24070A133