Power plant specific thermocouple

NegotiableUpdate on 12/11

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The specialized thermocouple for power plants is designed specifically for power stations and can meet the temperature measurement needs of 300000, 600000 kW and other generator sets and auxiliary equipment.

Product Details

Product Name

Power plant specific thermocouple

Characteristics of power plant specific thermocouple products:

1. Special heat for power plantsgalvanic coupleapplication

Specializing in power station design, it can meet the temperature measurement needs of 300000, 600000 kW and other generator sets and auxiliary equipment. Directly measure the temperature of liquid, vapor, gas media, and solid surfaces within the range of -200 ° C to 800 ° C in various production processes.

2Power plant specific thermocoupleworking principle

The electrodes of a thermocouple are composed of two different conductor materials. When there is a temperature difference between the measuring end and the reference end, a thermoelectric potential is generated, and the working instrument displays the temperature value corresponding to the thermoelectric potential.

Thermistor measures temperature by utilizing the characteristic that the resistance of a substance changes with temperature. When the resistance value changes, the working instrument displays the temperature value corresponding to the resistance value.

3Power plant specific thermocoupleMain technical parameters

Product execution standards

iec584

iec751

iec1515

jb/t18622-1997

jb/t8623-1997

gb/t16839-1997

4Power plant specific thermocoupleMeasurement range and tolerance

model	Dividing number	Tolerance level
		i		ii
		Allowable deviation	Temperature measurement range ° C	Allowable deviation	Temperature measurement range ° C
wrn	k	±1.5°c	-40~+375	±2.5 °c	-40~+333
wrn	k	±0.004ltl	375~1000	±0.0075 liters	333~1200
wrm	n	±1.5°c	-40~+375	±2.5°c	-40~+333
wrm	n	±0.004 liters	375~1000	±0.0075 liters	333~1200
wre	e	±1.5°c	-40~+375	±1.5°c	-40~+333
wre	e	±0.004 liters	375~800	±0.004 liters	333~900
wrf	j	±1.5°c	-40~+375	±1.5°c	-40~+333
wrf	j	±0.004 liters	375~750	±0.004 liters	333~750
wrc	t	±1.5°c	-40~+125	±1°c	-40~+133
wrc	t	±0.004 liters	125~350	±0.0075 liters	133~350

5Power plant specific thermocoupleRoom temperature insulation resistance

The thermal resistance is tested at an ambient temperature of 15-35 ° C, relative humidity not exceeding 80%, and a test voltage of 10-100V (DC). The insulation resistance between the electrode and the outer sleeve is greater than 100m Ω.

Thermocouples are tested at an ambient temperature of 20 ± 15 ° C, relative humidity not exceeding 80%, and a test voltage of 500 ± 50V (DC). The insulation resistance between the electrode and the outer sheath is greater than 1000 ω. m