BWR-04A series
source: Huaxin instrumentsposttime: 2012-03-24
Mounting dimensions
The main technical indicators
BWR-
O4, transformer winding thermostats (referred to as the winding thermostats) is designed specifically for oil-immersed power transformers, using a special instrument for thermal simulation method for indirect measurement of transformer winding temperature.The winding thermostat TR (TR = TY + K1TΔ) is superimposed on the basis of the transformer top oil temperature TY an additional temperature rise K1TΔ while the average temperature of the transformer. Where TΔ is the additional temperature rise of the thermal simulation device, K1 and cooling related to the structure factor. winding temperature rise of oil. TΔ depends on the transformer winding current when the transformer by the instruments of the current through the transformer current transformer converter adjusted to the winding thermostat elastic elements within the heating element produce heat to the elastic element displacement, resulting in more than the average oil temperature high a temperature indicated value.
1, BWR. Winding thermostats-04, the main technical indicators:
Operating temperature: -40 ~ 55 ℃
Temperature measurement range: 0 to 150 ° C
Control performance: a setting range: four-way switch, full-range adjustable b, switching differential: 4 ~ 8 ℃ c, rated power: AC250V/5A
Degree of protection: IP5
2, the converter technical indicators
Protection: IP55
Specifications:
a, the BL-A: Current 5 ~ 3A
b, BL-B-type: Current 2A
c, BL-C Type: Current 2 ~ 1A
d, the BL-D type: Current 1 ~ 0.61A
3, the digital display instrument of the major technical indicators:
Specification:
a, XMZ the type
b, XMZ to-2
c, XMZ to-3
d, XMT-3
