The CS-130 D generator features a high ampere output per pound of weight. CS stands for Charging System. 130 is the measurement in millimeters of the outside diameter of the stator laminations.

This generator does not have a diode trio. It does have an integral voltage regulator. The delta stator, rectifier bridge, and rotor with slip rings and brushes are electrically similar to those in other CS-series generators. Dual internal fans cool the slip rings, end frame, rectifier bridge, and regulator.

The voltage regulator setting varies with temperature. It limits system voltage by controlling rotor field current. When the field current is ON, the regulator actually switches the rotor field current on and off at a fixed rate of about 400 cycles per second. By varying the overall on-off time, correct average field current for proper system voltage control is obtained. At high speeds, the on-time may be 10 percent and the off-time 90 percent. At low speeds, with high electrical loads, on-off time may be 90 percent and 10 percent respectively.

This generator is not repairable. No periodic maintenance is required.