Bwr-04 Transformer Winding Temperature Thermometer Temperature Meter Gauge

• Customization: Available
• Phase: Three
• Cooling Method: Oil-immersed Type Transformer
• Model NO.: BWR-04 Series
• Usage: Industrial
• Standard: Celsius/Fahrenheit
• Accuracy: 1.5 Degree
• Display: Pointer
• Material: Optical Measurement
• Hygrometer Type: Dry and Wet Bulb Thermometer
• Constant Voltage Signal: (0-5)V (1-5)V
• Indicative Accuracy: Direct Current Signal
• Communication Interface: RS232 or RS485
• Converter: External
• Transport Package: Wooden Cases
• Specification: IEC CE, ISO
• Trademark: VILLE INDUSTRY
• Origin: Ningbo China
• HS Code: 8
• Production Capacity: 50000 Sets/Year
• Package Size: 58.00cm * 48.00cm * 27.00cm
• Package Gross Weight: 9.600kg

Product Description

General:
Model VBWR-04 series transformer winding temperature indicator is special designed for oil transformer. It is a
special-purpose indicator using the simulated temperature measurement technique to measure the temperature
of the winding of transformer.
T1 is the temperature of transformer winding which is T1=T2+T, where, T2 is the oil temperature in upper part
of the transformer, T is the raise of oil temperature. The T decided by the electricity of the transformer winding.
After the transformer is loaded, the current which is taken form the current transformer (CT) is first adjusted by
the converter, and then flows through the heating element embedded in the elastic unit, where, the current is
proportional to the load. The energy produced by the heating element increases the displacement of he elastic
unit; Therefore, the displacement of the elastic unit depends not only on the oil temperature of the transformer
upper part but also the loading current. The temperature indicated by the VBWR-04 is the summation of the oil
temperature of transformer upper part and the winding temperature rise over oil, reflection the average value of
the hottest portion temperature of the measured transformer winding.

Main Technical Parameters:
1, Normal operating conditions: (-40~+55)
2, Range of measurement: 0~150
3, Indicative accuracy: ± 3
4, Control capability
(1). Setting range: Adjustable within the whole span
(2). Setting accuracy: ± 3
(3). Switch difference: 6± 2
(4). Rated power of switch: AC 250V/15A
(5). Standard set Point:
K1=55 K2=75 K3=90 K4=130
5, Protection grade: IP55

-10	96.09Ω	31	112.06Ω	72	127.84Ω	113	143.43Ω
-9	96.48	32	112.45	73	128.22	114	143.80
-8	96.87	33	112.83	74	128.61	115	144.18
-7	97.26	34	113.22	75	128.99	116	144.56
-6	97.65	35	113.61	76	129.37	117	144.94
-5	98.04	36	114.00	77	129.75	118	145.31
-4	98.44	37	114.38	78	130.13	119	145.69
-3	98.83	38	114.77	79	130.52	120	146.07
-2	99.22	39	115.15	80	130.90	121	146.44
-1	99.61	40	115.54	81	131.28	122	146.82
0	100.00	41	115.93	82	131.66	123	147.20
1	100.39	42	116.31	83	132.04	124	147.57
2	100.78	43	116.70	84	132.42	125	147.95
3	101.17	44	117.08	85	132.80	126	148.33
4	101.56	45	117.47	86	133.18	127	148.70
5	101.95	46	117.86	87	133.57	128	149.08
6	102.34	47	118.24	88	133.95	129	149.46
7	102.73	48	118.63	89	134.33	130	149.83
8	103.12	49	119.01	90	134.71	131	150.21
9	103.51	50	119.40	91	135.09	132	150.58
10	103.90	51	119.78	92	135.47	133	150.96
11	104.29	52	120.17	93	135.85	134	151.33
12	104.68	53	120.55	94	136.23	135	151.71
13	105.07	54	120.94	95	136.61	136	152.08
14	105.46	55	121.32	96	136.99	137	152.46
15	105.85	56	121.71	97	137.37	138	152.83
16	106.24	57	122.09	98	137.75	139	153.21
17	106.63	58	122.47	99	138.13	140	153.58
18	107.02	59	122.86	100	138.51	141	153.96
19	107.40	60	123.24	101	138.88	142	154.33
20	107.79	61	123.63	102	139.26	143	154.71
21	108.18	62	124.01	103	139.64	144	155.08
22	108.57	63	124.39	104	140.02	145	155.46
23	108.96	64	124.78	105	140.40	146	155.83
24	109.35	65	125.16	106	140.78	147	156.20
25	109.73	66	125.54	107	141.16	148	156.58
26	110.12	67	125.93	108	141.54	149	156.95
27	110.51	68	126.31	109	141.91	150	157.33
28	110.90	69	126.69	110	142.29
29	111.29	70	127.08	111	142.67
30	111.67	71	127.46	112	143.05

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