Class 4 (4th Engineer) MET 📅 Aug 2024

Exam Question

A 4 pole, lap wound shunt generator delivers 200 A at terminal voltage of 250 V. It has a field and armature resistance of 50 Ω and 0.05 Ω respectively.

Determine: (16)

(a) Armature current

(b) Generated e.m.f

(d) Power developed

Reference Answer

### **1. Introduction to DC Shunt Generators**
A DC shunt generator is a type of DC generator where the field winding is connected in parallel (shunt) with the armature winding and across the load. This arrangement means that the terminal voltage supplies both the load and the field circuit. Shunt generators are known for their relatively constant terminal voltage, making them suitable for applications requiring a steady voltage supply, such as excitation systems, battery charging, and general power supply on ships where legacy DC systems are still in operation.
**Key Characteristics of a Shunt Generator:**
* **Field Winding:** High resistance, many turns of fine wire, connected in parallel with the armature and load.

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