HI-PO POWER SYSTEM
 
Electronic AVR - Model CTR - 5

Product Code : CTR-5

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Product Specification
Electronic AVR
This AVR is full wave phase controlled thyristor type AVR & forms part of excitation system for brush-less /slip ring type generator. Use of high efficient & sensitive semiconductors, positive voltage build-up is ensured from lower residual voltage level. This AVR derives power from main stator & senses the average value of two phases.This AVR provides under-speed excitation protection, by reducing the output voltage proportionally with speed below a preset threshold.

Technical Specifications

SUPPLY/SENSING VOLTAGE.

225 - 475 V ac 2 phase & Neutral at U, V & N.

FREQUENCY.

50 Hz.

OUTPUT.at

F+,F-

Voltage.

Current.

Resistance

380 V dc @ 415 V ac input.

10.0 A, continuous / 20.0 A., transient for 10 secs.

15 ohms min.

REGULATION.

+/- 1.0%.

AVR RESPONSE.

20 ms.

UNDER Frq. PROTECTION.

Approx. 47 Hz settable by pot. Slop - 150% volts/Hz.

BULD UP VOLTAGE.

5 Volts @ AVR terminals.

OPERATING TEMPERATURE.

-40 to + 70 Degree C.

PROTECTION FUSE.

10.0 A, quick acting (19mm X 5mm glass cartridge)


Controls

V - Set.

To adjust generator output voltage.

Clockwise rotation increases output voltage.

Stab.

To prevent voltage hunting.

Clockwise rotation increases damping effect.

U/F SET

To set ufro nee point.

Clockwise rotation increases nee point setting.

O/L SET

To limit, max. DCV at F+,F-

Clockwise rotation increases DCV limit.


Physical Dimension/Weight

L x W x H

169mm X 106mm X 45mm

Weight.

480 gms.

MOUNTING.

6.6mmX 2holes,at center distance of 155.0mm.


Important
The discrete power component TYN 1225 and diode 20ETS12 can be replaced if failed.

Caution
  • Isolate AVR while flashing or insulation testing of the Alternator.
  • Installation and adjustment must be carried-out by skilled technician only.
Note:
  • AVR for specific application is also available on request.
  • Other standard models of AVRs are available as under. Please ask for detail.
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