Testing

 1.TRANSFOEMER  RATIO

Specification: S=110VA (ตามข้อมูลการออกแบบ)

V_primary = 110 V ,V_secondary = 110 V

ค่ากระแสเต็มพิกัด I_pri(Rated)=1 A , I_sec(Rated)=1 A

 

Insulating Resistance
R Primary=0 Ω                                    R Secondary=0 Ω
R Primary to Core>2000M Ω                 R Secondary to Core>2000M  Ω
R Primary to Secondary>2000M  Ω  

Transformer Ratio

Vprimary	00	20	40	60	80	100	120
Vsecondary	00	20.02	39.98	60.06	80.30	99.90	119.3
Transformer Ratio	1	1	1	1	1	1	1

 

Vsecondary	00	20	40	60	80	100	120
Vprimary	00	20.03	40.03	60.08	80.02	100.0	120.0
Transformer Ratio	1	1	1	1	1	1	1

  

 

2.APPROXIMATED  EQUIVALENT  CIRCUIT

Approximated Circuit Test

	Watt	Volt	Amp	PF	Note
Open Circuit Test	9	110.3	0.215	0.38	O/C Secondary Side
Short Circuit Test	6.25	6.31	1.01	0.99	S/C Secondary Side

Rp=6.126 Ω                         Xp=1.226j Ω
Rc=1350.06 Ω                      Xm=555.219j Ω

 

3.LOAD TEST

Lamp	Primary				Secondary				W1-W2
	W1	V1	A1	PF1	W2	V2	A2	PF2	Losses
0	10.2	110	0.231	0.40	0	110	0.026	0	10.2
100W 1 หลอด	44.03	110	0.449	0.89	33.33	108.0	0.306	1	10.7
100W 2 หลอด	70.73	110	0.706	0.91	64.833	106.3	0.61	1	5.897
100W 2 หลอด+60W 1 หลอด	94.36	110	0.884	0.97	82.03	105	0.78	1	12.33
100W 2 หลอด+60W 1 หลอด+40W 1 หลอด	108.8	110	1.006	0.98	95	104.8	0.903	1	13.8

 

 

4.POLARITY TEST

V₁₂=110 V , V₃₄=110.4 V,  V₁₃=222 V

 

5.VOLTAGE  TAPPING

Designed Voltage	Measured Value	Error	Winding	Designed Volt/Turns	Calculated Volt/Turns
110	110.0	0	348	0.31644	0.31609
24	23.94	0.06	272	0.31644	0.08801
12	12.01	0.01	310	0.31644	0.03874
9	8.86	0.14	320	0.31644	0.02768
3	2.830	0.17	339	0.31644	0.008348

 

 6.STEP-DOWN AUTOTRANSFORMER

 

Lamp	Primary				Secondary				W1-W2
	W1	V1	A1	PF1	W2	V2	A2	PF2	Losses
0	0	220	0	0	0	110.4	0.001	-	0
1	41.75	220	0.208	0.91	33.7	109.5	0.308	1	8.05
2	73.75	220	0.3475	0.97	64.9	108.9	0.597	1	8.85
3	106.25	220	0.495	0.98	96.1	108.5	0.886	1	10.15
4	139.25	220	0.6425	0.99	127.2	107.9	1.179	1	12.05
5	171.25	219	0.79	0.99	157.6	107.4	1.467	1	13.65
6	202.75	219	0.93	1	187.6	107	1.753	1	15.15
7	234.25	219	1.077	0.99	217.4	106.4	2.04	1	16.85

At Full Load Condition:  h  =    94.27  %     Losses =  13.3  W
S₁ =   236.5  VA   S₂  = 216.685  VA
Voltage Regulation =  4.35% แก้ไข

 

 

7.STEP-UP AUTOTRANSFORMER

Lamp	Primary				Secondary				W1-W2
	W1	V1	A1	PF1	W2	V2	A2	PF2	Losses
0	8.475	110	0.193	0.4	0	218.2	0.001	-	8.475
1	104.25	109	0.973	0.98	94.7	214.6	0.442	1	9.55
2	191.25	109	1.778	0.99	179	179	0.851	1	12.25
3	225.5	108	2.097	1.00	211.6	208.8	1.014	1	13.9

At Full Load Condition:  h  =    89.09  %     Losses =  12.1  W
S₁ =   187  VA   S₂  = 168.32 VA
Voltage Regulation =  0% แก้ไข

 

 

8.VOLTAGE REGULATOR FOR FLUORESCENT LAMP 3x36 W

Select Tap 208V For Load Voltage

Lamp	Primary				Secondary				W1-W2
	W1	V1	A1	PF1	W2	V2	A2	PF2	Losses
0	0	220	0	0	0	207.3	0	-	0
1	45.75	220	0.453	0.46	35.7	208	0.397	0.44	10.05
2	79.25	220	0.808	0.46	67.1	207.6	0.765	0.42	12.15
3	111	220	0.85	0.44	98.9	207.3	0.812	0.59	12.1

 At Full Load Condition:  h  =    89.09  %     Losses =  12.1  W
S₁ =   187  VA   S₂  = 168.32 VA
Voltage Regulation =  0%
 

 

Select Tap 217V For Load Voltage

Lamp	Primary				Secondary				W1-W2
	W1	V1	A1	PF1	W2	V2	A2	PF2	Losses
0	0	230	0	0	0	217.2	0	-	0
1	53.5	230	0.48	0.48	38.4	214.7	0.412	0.43	15.1
2	87.25	230	0.895	0.44	73.7	216.2	0.813	0.42	13.55
3	120	230	0.903	0.58	107.5	216	0.863	0.58	12.5

At Full Load Condition:  h  =    89.58  %     Losses =  12.5  W
S₁ =   207.69  VA   S₂  = 186.404 VA
Voltage Regulation =  0.55%

 

 

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