MODEL

R-DC20

PRIME POWER (KVA/KW)

20/16

STANDBY POWER(KVA/KW)

22/18

Rated voltage（V）

400/230

Rated speed（rpm）

1500

Rated frequency（Hz）

50

Power factor

0.8

Ambient temperature（℃）

40

Altitude（m）

1000

Connection type

3 phase  4 wires

ENGINE MANUFACTURER

CUMMINS

Model

4B3.9-G1

Rated Power（kW）

24

No. of cylinders & configuration

In-Line 4 cylinders

Method of operation

4-stroke

Speed regulation

mechanical Governor

Starting system

DC 12V Electronic start

Cooling method

Closed-circuit cooling system

Total displacement（L）

3.9

Compression ratio

16.5:1

Bore×Stroke（mm）

102×120

100% Load fuel consumption（L/h）

7.1

ALTERNATOR MANUFACTURER

STAMFORD

Number of Phase

3

Connection Type

3Phase and 4Wires

Number of Bearing

1

Power Factor

0.8

Protection Grade

IP23

Terminal

12

Winding/ Pitch

100% Copper   2/3 Pitch

Cooling Fan

Cast alloy aluminum

Exciter Type

Brushless, Self-Exciting

Insulation Class, Temperature Rise

H/H

Telephone Influence Factor( TIF)

TIF <50 / THF<2%

Total Harmonic TGH/THC

<1.5% at no load / <5% at load

Voltage Regulation, Steady State

≤±1%

Sustained Short-Circuit Current

300%(3 in):10s

CONTROL SYSTEM

DSE SERIES