 |  | Switchgear - Basic vocational knowledge (Institut für Berufliche Entwicklung, 54 p.) |
 |  | (introduction...) |
 |  | Preface |
 |  | 1. General remarks |
 |  | 2. Important components of switches |
 |  | 2.1. Switching contacts |
 |  | 2.2. Arcs |
 |  | 2.3. Switch mechanisms |
 |  | 3. Low-voltage circuit breakers |
 |  | 3.1. Classification and tasks of the circuit breakers |
 |  | 3.2. Circuit breakers |
 |  | (introduction...) |
 |  | 3.2.1. Universal circuit breakers |
 |  | 3.2.2. Compact circuit breakers |
 |  | 3.2.3. High-speed switches for d.c. installations |
 |  | 3.2.4. Protective switches |
 |  | 3.3. Overload circuit breakers |
 |  | (introduction...) |
 |  | 3.3.1. Multisection cam-operated switches |
 |  | 3.3.2. Contactors |
 |  | 3.4. On -load switches |
 |  | (introduction...) |
 |  | 3.4.1. Load-break switches in slim design |
 |  | 3.4.2. Installation switcher |
 |  | 3.5. Off-load switches |
 |  | 4. Relays and control devices |
 |  | 4.1. Relays |
 |  | (introduction...) |
 |  | 4.1.1. Neutral or auxiliary relays |
 |  | 4.1.2. Time relays |
 |  | 4.1.3. Undervoltage and overvoltage relays |
 |  | 4.1.4. Overcurrent relays |
 |  | 4.1.5. Overcurrent time relays |
 |  | 4.1.6. Magnetic overcurrent relays |
 |  | 4.1.7. Signal relays |
 |  | 4.2. Control devices |
 |  | 4.2.1. Discrepancy switches |
 |  | 4.2.2. Control discrepancy switches |