under/over voltage protection

Status
Not open for further replies.

short_ckt

New member
we bought a Constant Current Regulator with the following Technical Characteristics:

Power Rating : 7.5KVA

Power Supply : Single-phase 230V, 60 Hz
Output Current : 6.6 A.

Brilliancy Levels : 5 s + ?Non-illumination Current? level (1.5 or 1.8A).

Power Factor : FAA type : >0.90 (2.5 to 10kW CCR) or >0.95 (15 to 30kW CCR).


IEC type : >0.90 at nominal voltage and rated resistive load.

Efficiency : >0.90 at rated parameters.

Remote Control and monitoring : Voltage from 20 to 60 Vdc or dry contacts or serial single or double network.

Output Current Accuracy : Better than 1% under the following conditions : Power supply ?10% (IEC) or ?5/+10% (FAA). Frequency from 45 to 66Hz. Load from 0 to 100%.

Back Indications : Static dry contacts (IEC type), or relay contacts (FAA), or serial network.


Protections : Over current, open circuit, under/over voltage.

Operating conditions : Continuous operation in an ambient temperature from -20?C to +55?C (FAA style : -40?C to +55?C. Max humidity : 95%. Natural air cooling. IP 21 (other on request).



Now the problem is the CCR now is not working and we had our supplier check it and at first they said it's been damaged coz the room is not airconditioned room and that dust and heat caused the breakdown the second time they checked it they are saying that it is due to "over voltage" in our system..from what i know every electric equipment must have this 10% over/under voltage protection (please correct me if im wrong) if not how can i compute the over/under voltage protection of the CCR supplied to us? help would greatly be appreciated :)
 
Status
Not open for further replies.
Top