The illustration below shows the parts of a thermal circuit breaker. The are points to the blo a. heater b. stationary contact movable contact С. d. load 1-
The illustration below shows the parts of a thermal circuit breaker. The are points to the blo a. heater b. stationary contact movable contact С. d. load 1-
Chapter27: Service-entrance Equipment
Section: Chapter Questions
Problem 29R
Related questions
Question
**Options:**
a. heater
b. stationary contact
c. movable contact
d. load
**Explanation:**
The diagram presented shows a thermal circuit breaker, which is a safety device designed to protect an electrical circuit from damage caused by overcurrent or a short circuit. The illustration consists of several components:
1. **Heater**: Represented by a zigzag line, the heater generates heat when current flows through it.
2. **Stationary Contact**: Represented by a line fixed at one side of the breaker.
3. **Movable Contact**: Depicted as a line that can move to either make or break the electrical connection.
4. **Load**: Typically represented as an electrical appliance or device connected to the breaker that consumes power.
The arrow in the illustration points to the component which is likely to be the stationary contact given its position in the diagram. However, without further context from the image text, students should analyze the provided illustration carefully.
**Answer Key: Option b. stationary contact**
Remember to refer to the diagram and identify each part to solidify your understanding of thermal circuit breakers.
#### Graphical Explanation
- **Heater (Zigzag Line)**: This component heats up as electrical current passes through it, which is crucial for triggering the breaker mechanism when the current exceeds safe limits.
- **Stationary Contact (Fixed Line)**: This part remains static and helps in forming a connection with the movable contact.
- **Movable Contact (Movable Line)**: This part moves to either connect or disconnect the electrical circuit in response to the thermal condition of the heater.
- **Load (Connected Device)**: This represents the electrical device that is being protected by the circuit breaker.
Please review the diagram carefully as it will help in understanding the roles of various components in a thermal circuit breaker.
---
**Note:** Ensure to have a clear understanding of each component's function within the thermal circuit breaker. If there are any uncertainties, reviewing additional resources on electrical protective devices may help.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F67672746-54fa-4aed-ad52-0d4731231d53%2Facfa8d2b-5cb5-4432-82b8-ebc1ebbffc93%2Fs3gtjyp.jpeg&w=3840&q=75)
Transcribed Image Text:### Parts of a Thermal Circuit Breaker
**Question 2:**
The illustration below shows the parts of a thermal circuit breaker. The arrow points to the _____________.
**Options:**
a. heater
b. stationary contact
c. movable contact
d. load
**Explanation:**
The diagram presented shows a thermal circuit breaker, which is a safety device designed to protect an electrical circuit from damage caused by overcurrent or a short circuit. The illustration consists of several components:
1. **Heater**: Represented by a zigzag line, the heater generates heat when current flows through it.
2. **Stationary Contact**: Represented by a line fixed at one side of the breaker.
3. **Movable Contact**: Depicted as a line that can move to either make or break the electrical connection.
4. **Load**: Typically represented as an electrical appliance or device connected to the breaker that consumes power.
The arrow in the illustration points to the component which is likely to be the stationary contact given its position in the diagram. However, without further context from the image text, students should analyze the provided illustration carefully.
**Answer Key: Option b. stationary contact**
Remember to refer to the diagram and identify each part to solidify your understanding of thermal circuit breakers.
#### Graphical Explanation
- **Heater (Zigzag Line)**: This component heats up as electrical current passes through it, which is crucial for triggering the breaker mechanism when the current exceeds safe limits.
- **Stationary Contact (Fixed Line)**: This part remains static and helps in forming a connection with the movable contact.
- **Movable Contact (Movable Line)**: This part moves to either connect or disconnect the electrical circuit in response to the thermal condition of the heater.
- **Load (Connected Device)**: This represents the electrical device that is being protected by the circuit breaker.
Please review the diagram carefully as it will help in understanding the roles of various components in a thermal circuit breaker.
---
**Note:** Ensure to have a clear understanding of each component's function within the thermal circuit breaker. If there are any uncertainties, reviewing additional resources on electrical protective devices may help.
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