500 kVA Oil Cooled Servo Voltage Stabilizer

Rating

500 kVA, 3 Phase In / 3 Phase Out, 4 Wire

Input Voltage Range

340 V- 460 V (L-L) / 196 V - 265 V (L-N), 47 Hz - 63 Hz, 4 Wire

Output Voltage

380 / 400 / 415 V -/+ 1%

Output Current

758 / 725 / 694 A per phase

Duty Cycle

Continuous 24x7

Output Waveform

True to input

Response Time

Less than 10 ms

Suitability

Suitable for all power factor loads

Cooling

Natural Oil Cooled

Class of Insulation

Class A

Breakdown Strength & IR

1500 V AC for 2 minutes; > 50 M at 500 V DC

Correction Speed

Up to 15 Volts / Second

Admissible Load Variation

0 100%

Over-Load Capability

Up to 200% for startup load surges

Installation

Indoor type (Outdoor type also available)

Degree of Protection

IP-30

No Load Loss

Less than 0.4%

Efficiency

98 99%

Input / Output Termination

On Copper Bus Bar

Operating Temperature

0 deg C 55 deg C

Transformer Oil

New insulating transformer oil (ISI 335 marked)

Size (in mm) & Weight

L 2180 x D 1170 x H 1270 & 1715 Kg.

Winding Material

Copper Strip / Wire EC grade, F / H Class enamel coated

Technology

Toroidally wound variable auto transformer for linear control and greater efficiency

Drive

Direct AC drive for fastest voltage correction and durability

Controls

All three phases controlled individually for better voltage and load management

Applicable Standards

IS 9815, ISO 9001:2015, ISO 14001:2015

International Marking

CE Conformity EN61558-1:2005 + A1:2009