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Summary of warranty terms and conditions.
Description of Static Trip II devices and their components.
Static Trip II devices are static, use semiconductors, and operate based on current.
Enclosure, electronic circuits, and tripping actuator of the Static Trip II device.
Overview of the static overcurrent trip system including CTs and actuator.
Procedures for removing Static Trip II units from circuit breakers.
Dual trip devices for phase overcurrent and ground fault protection.
Selective trip devices for phase and ground fault protection with time delay.
Triple selective trip devices for phase and ground fault with time delay and instantaneous elements.
Graphical representation of trip device timing characteristics based on current.
Stability, repeatability, and tolerance to ambient conditions of Static Trip II.
Details on using knobs and switches for setting device parameters.
Schematics for connecting Static Trip II devices to circuit breakers.
Table of ampere settings for various tripping transformer ratings.
Explanations for rating table values, pick-up settings, and time bands.
Method for testing Static Trip II using secondary current injection.
Instructions for using a portable test set for device verification.
Diagrams and instructions for connecting test equipment to the device.
Verifying the pick-up current for the long time element.
Verifying the pick-up current for the short time element.
Verifying the pick-up current for the ground fault element.
Testing the instantaneous tripping function of the device.
Testing long time, short time, and ground time delays.
Testing the circuit breaker's tripping actuator for proper function.
Procedures for testing current transformers for continuity and excitation.
Specific tests for transformer windings and wiring integrity.
Limits for exciting current during transformer testing.
Testing the entire system using primary current applied to the breaker.
Guidance on handling device repair and not field-repairing.
Procedure for recalibrating knobs if they become misaligned.
Steps for safely disassembling and cleaning the Static Trip II unit.
General| Brand | Siemens-Allis |
|---|---|
| Model | Static Trip II |
| Category | Industrial Equipment |
| Language | English |
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