1-4 General Information DECS-200
Sample Style Number
The style number identification chart (Figure 1-2) defines the electrical characteristics and operational
features included in the DECS-200. For example, if the style number were DECS-200-1L, the device
would have the following characteristics and features.
DECS-200 -- Digital Excitation Control System
1 --- Internal autotracking/transfer
L --- 24/48 Vdc control power supply
SPECIFICATIONS
DECS-200 electrical and physical characteristics are listed in the following paragraphs.
Control Power
Input Voltage
DC Input: 16 to 60 Vdc (style XL) or 90 to 150 Vdc (style XC)
AC Input: 85 to 132 Vac, 50/60 Hz (style XC only)
Note: Isolation transformer for ac input is required when dual control
power sources are used.
Burden
DC Input: 30 W
AC Input: 50 VA
Terminals
DC Input: B7 (+), B8 (–)
AC Input: B9 (L), B10 (N) (style XC only)
Operating Power
To achieve the proper DECS-200 output voltage, the appropriate operating power input voltage must be
provided.
32 Vdc PWM Output
Nominal: 60 Vac
Operating Range: 56 to 70 Vac, ±10%
Frequency Range: 50 to 500 Hz
Configuration: 1-phase or 3-phase
Burden: 780 VA
63 Vdc PWM Output
Nominal: 120 Vac
Operating Range: 100 to 139 Vac, ±10%
Frequency Range: 50 to 500 Hz
Configuration: 1-phase or 3-phase
Burden: 1,570 VA
125 Vdc PWM Output
Nominal: 240 Vac
Operating Range: 190 to 277 Vac, ±10%
Frequency Range: 50 to 500 Hz
Configuration: 1-phase or 3-phase
Burden: 3,070 VA
Voltage Buildup
From a minimum of 3 Vac
Terminals
C2 (A-phase), C3 (B-phase), C4 (C-phase)
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