Quasar Manual

INSTRUCTION MANUAL FOR

QUASAR DIGITAL PANEL METER Class 1.0

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Table of contents Page No. Section 1. Section 2. Section 3. Section 4. Section 5. Section 6. Section 7.

General Details Front Panel Details Installation Mechanical Dimensions Specific Points Programming the meter Warranty & Disclaimer

3 3 11 12 12 13 14

Appendix 1. Appendix 2. Appendix 3. Appendix 4. Appendix 5. Appendix 6. Appendix 7. Appendix 8.

Technical Specifications Modbus Details Memory Map Meter Programming Procedure Display Screens - 3phase, 3wire. Display Screens - 3phase, 4wire. Wiring Diagram Dimensional Details

15 17 26 32 37 40 43 47

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1.0 General Details: QUASAR is a 96 x 96 mm, flush mounted, single screen multiple parameter display digital panel meter for measuring electrical parameters. The meter is designed with DSP technology to combine measurements of both instantaneous and cumulative values in an electrical feeder. The device is built with a custom made, backlit, LCD display to provide high-resolution view of various parameters to the viewer. The parameters are displayed over all screens which can be scrolled up & down by front panel push buttons. The feeder parameters like CT / PT ratings, baud rates, port address, demand parameters etc. are set by additional push buttons (PBs) on the front panel. 2.0 Front Panel Details: Please see fig. 1. The front panel has one LCD display, 4 PBs and a LED. The functions of the PBs are explained in the sections 2.3, 2.7 and Appendix 4. The LED flashes at a rate proportional to the kWh in the feeder. 2.1 Display Features: QUASAR comes with a custom made LCD display. The power parameters are displayed through all screens. Please refer Appendix 5& 6 for details of parameters displayed in each screen. Please also refer to Table-1&2 for a ready reckoner of screen references. The following displays appear immediately after power on1. all segments check 2. serial no. 3. Version no. Finally it continuously displays the selected “power on screen” until keys are pressed.

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Fig.- 1

2.2 Front panel push buttons: There are four Push buttons (PBs) on the front panel to do following functions: a) b) c) d)

scrolling thro’ display min/max/present values selection reset of min/max values front panel programming.

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Table-1: 3phase, 3wire Parameter Unit

L1 (r-y)

L2 (b-y)

V

2, 16

2, 17

1

A kW

3, 18 4

3, 19 4

1 10, 1

Reactive power L

kVAr L

5

5

10(Lor C)

Reactive power C

kVArC

5

5

10(Lor C)

Apparent power

kVA

6

6

10

Power factor Phase angle (w.r.t. Voltages) Phase angle (B/w Voltages & currents) Frequency Power demand (max.)

PF Φ- V

7 8

7 8

11

√ √ (only for total) √ (only for total) √ (only for total) √ (only for total) √

Φ- A

9

9

Hz Pd

11

* 11

√

Active energy Reactive energy L Reactive energy C Apparent energy Voltage Fundamental

kWh kVArLh kVArCh kVAh ~1

16

17

Voltage Distortion Current Fundamental Current Distortion

~D ~1 ~D

16 18 18

17 19 19

Voltage (Line Voltage) Current Active power

Tot/ Avg

12 13 14 15

5

Max/m in option √

Table-2: 3phase, 4 wire Parameter

P1

P2

P3

Tot/ Avg

Max/m in option

1

√

1 11, 1

Unit Voltage (P-N) Voltage (P-P) Current Active power

V V A kW

2, 17 3 4, 20 5

2, 18 3 4, 21 5

2, 19 3 4, 22 5

Reactive power L

kVAr L kVAr C kVA

6

6

6

11(L orC)

6

6

6

11(L orC)

7

7

7

11

PF Φ- V

8 9

8 9

8 9

12

√ √ (only for total) √ (only for total) √ (only for total) √ (only for total) √

Φ- A

10

10

10

Hz Pd

12

*

* 12

√

Reactive power C Apparent power Power factor Phase angle (w.r.t. Voltages) Phase angle (between voltages & currents) Frequency Power demand (max.) Active energy Reactive energy L Reactive energy C Apparent energy Voltage Fundamental Voltage Distortion Current Fundamental Current Distortion

kWh kVArLh kVArCh kVAh ~1

13 14 15 16 17

18

19

~D ~1

17 20

18 21

19 22

~D

20

21

22

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Notes: All display screens of 3 parameters each are available. (nos. in the above Tables indicate the order of the default display screens). Note: ‘*’ in above Tables indicates that Freq. of phase 1 is displayed if phase1 is available, freq. of phase 2 is displayed if phase1 is not available and phase 2 is available, freq. of phase 3 is displayed if phase1&2 are not available and phase 3 is available. The power up screen will be by default- total power (of all phases), average voltages (of all phases) & average currents (of all phases). The default power ON screen is programmable. It will remain in this display until keys are pressed as explained below. 2.3 Functions of front panel push buttons : Display scroll PBs ‘5 5’ & ‘6 6’ . The display scroll PBs are indicated as ‘5 5’ & ‘6 6‘. All screens of display can be viewed one after the other by pressing ‘5’ or ‘6’ PBs of front panel. Pressing ‘5’& ‘6’keys simultaneously will take display to auto scroll mode. The display will scroll through all screens at a fixed rate of 3 secs. In auto scroll mode, pressing ‘5’ or ‘6’key will take display to manual mode. (No time out for any mode of display).

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Max / min values selector PB ‘MODE’ QUASAR stores max/min values of the feeder (only for parameters ticked in Table-1&2). The PB designated as ‘MODE’ is meant to read these max/min values. Normally latest updated values will be displayed. By pressing the push button MODE, the display can be switched to Min., Max. or present values one after the other. The display will remain in Min & Max modes until the PB is pressed again. In case there is a maximum timeout of 2 mins, the display will go back to Present values. Min/Max modes are not supported in auto scroll mode. Reset Push button Resets the max/min values, except power demand & energies. 2.4 Energy & Pulse outputs: Units and precision of energy will vary with the CT*PT ratios selected as shown in table below. CT*PT Display format Unit < 10 xxxxxx.xx k < 100 xxxxxxx.x k