Delta-Star Converter for Energy Saving

Current Range

0.25 TO 5 Amp
4 TO 61 Amp
40 TO 500 Amp
400 TO 1200 Amp

Product Details

Power Source	:	3 Phase 4 Wire [ R-Y-B-N]
CT Type	:	In built in 0.25-5A / DIN Rail Mount Phase CT Unit in 4-61 A / External Phase CTs for above 61 A
Voltage Type	:	AC
Application	:	i MCC & Energy Saving
Display	:	Back lit LCD 16 X 2
Mounting	:	Door Mount [Door Cut out 92 X 92 mm]
Output Contact	:	P-NO & P-NO-NC [3 A 240VAC]

Protections

Single Phasing Protection Current
Single Phasing Protection Voltage
Over Load Protection
Over Voltage Protection
Under Load Protection
Under Voltage Protection
Phase Un-balance
Phase Reversal Protection
Locked Rotor Protection
Short Circuit Protection
Earth Fault Protection

Protections

C
V
OL
OV
UL
UV
Ub
Ph-r
L
S
E

Display	:	Current Voltage P.F KW KWh Operating Hour Start Counter Trip Counter Current Status at Last Trip Voltage Status at Last Trip through.
Standar Features	:	Selectable IT Curve OR Definite Time Selectable Trip Time for SPP & UL Selectable Rotor Locked Value RS-485 Communication Digital Timer for Star-Delta Starter In-built Delta-Star Converter for purpose of Energy Saving
Optional Feature	:	Add On Current Module For Remote Monitoring of Current. 4 to 20mA O/P w.r.t. Running KW value Add On Module 4 to 20mA O/P w.r.t. Running KW value

Principle of Operation:

When the motor is loaded for less than 50% of Motor’s full load capacity in terms of power, the motor can be switch over to Star for Energy Saving purpose. Again when load increases beyond 50% of Motor’s full load capacity in terms of power it will automatically convert to Delta without disturbing process.

Motors used to operates high inertia loads require higher capacity motors to meet the starting torque requirements. While in normal running the same motors draw very lesser power than its capacity. In such a cases motor can be start with Star-Delta Starter & as it start to draw a 50 % lower power than its capacity, it can be run in Star to improve its Power Factor and hence sizable amount of Energy can be save.

In such cases, if the motors are connected with DOL starter are worthwhile to convert to a Star Delta starter along with i.MWM-IO/SDS module to get Energy Saving.