Pyrotech Electronics Pvt. Ltd. (Unit - I)

MEGAWATT INDICATOR

MODEL CODES
Model                          

MW-101.

INPUT

Input                            

Voltage from PT & current from CT.

PT Ratio                       

(1) 110 VAC from PT.

(2) 230 VAC from PT.

(3) 415 VAC from PT.

CT Ratio                       

(1) 0-1 A from CT.

(2) 0-5 A from CT.

Connections                 

(1) 3 phase, 3 wire.

(2) 3 phase, 4 wire.

Input power range          

Please specify.

Operational range(of rating)

Voltage input                

(1) 10-110% (for externally powered).

(2) 85-110% (for self powered).

Current input                 

0-120%.

OUTPUT

Output                         

4-20 mA DC, linear.

1-5 VDC linear.

Load on output  

0-500 ohms.

DISPLAY 

Type of display 

7 segment LED display.

No. of digit                    

(a) 3 ½ digit.

(b) 4 ½ digit.                 

Size of digit                  

100mm (4”) height.

Display colour               

Red.

Display range               

Please specify.              

GENERAL SPECIFICATION

Isolation                       

Galvanic isolation of 1.0 KV is provided between supply & input/output.

Adjustment                   

Zero & span are adjustable by two individual trim-pots.

Burn out protection        

Down scale.

Anti-humidity Treatment.

Acryform conformal coating on PCB.

Power fuse                 

0.25 Amps.

Wiring                          

Screw terminals, suitable for 2.5 Sq.mm.

PERFORMANCE

Accuracy                     

±0.5% of full scale, ±1 digit.

Resolution                    

1 LSB.

Sampling rate               

2 per second.

Response time             

Less than 2 seconds.

Line voltage variation effect         

± 0.5% (within ± 10% change).

Insulation resistance     

200 MΩ at 1000 VDC.

Insulation strength         

(1) 1KV between earth & primary.

(2) 0.5KV between earth & I/O.

(3) 0.5KV between primary & I/O.

(4) 1KV between input & output.  

INSTALLATION

Power Supply               

(A) 110 VAC ± 10%, 50 Hz.

(B) 230 VAC ± 10%, 50 Hz.                      

Operating ambient

-Temperature       

0°C to 60°C.

-Humidity

5 to 95% RH.

Mounting                      

Flush panel. 

Housing                       

Sheet metal.

Bezel size                    

530 (W) x 196 (H) in mm.

Weight 5Kg.
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