Simplex (Single element) stator winding RTDs

Product Overview

The Stator winding temperature detector (RTD) are used to measure winding temperature of large Motors, Generators etc. These sensor are sandwiched between the windings of Motors/Generators.

Unlike on/off devices, It allows continuous measurement of winding temperature. The NEMA recognizes this kind of sensor as a standard protection for motor and generator Insulation.

Normally, these RTDs are of wire wound and sensing element extends through out the length of the detector. These feature will provide average temperature reading. Normally six sensors are recommended for each motor, Two per Phase. This RTD are generally flat type in construction and are available in various sizes.

Main Features

  • Slim dimensions to get inserted in between windings

  • Bifilar wound slot resistance thermometer design that prevents induction voltage resulting in measurement errors

  • Resistance to shock, vibration and pressure

  • Withstand of VPI(Vacuum Pressure Impregnation) Process

  • High Dielectric Strength

  • ATEX /IECEx approve model available for equipment used in hazardous area

Specification

TYPE

PT 100(100 ohm at 0°C)*

Model

TSRE

Element

Single

Body Material

Fibre Glass epoxy

Temperature Class:

Class F(Temperature limit:155°C) or

Class H(Temperature limit:180°C)

Calibration Standard

IEC 60751

Temperature coefficient(TCR):0.003850

Accuracy

Class A/B/2B

Sensing current

10mA maximum

Dielectric strength

3 KV 50/60 Hz for 1 minute between leads and surface of Glass epoxy
body (5 KV design are available on request)

Number of wire:

Two or three or four

Lead Wire:

Single or multiple stranded with Tin/silver/Nickel plated copper wire
with teflon or Polyamide insulation (special Lead wire and cable upon
request). Please note that the selection of suitable wire gauge is
depend up on the width and thickness of the sensor.

For Sizes & all other dimension please refer drawing.

Note:Other values like PT-50,PT-200 and temperature coefficient of 0.003916 are available upon request. Custom design of sensors are also available upon request.

Model: TSRE series ( Single element)

MODEL: TSRE-ACC-L-T-W-NW-CL-WG-CC

ACC

Accuracy of RTD element (A/B/2B)

L

Length in mm

T

Thickness in mm

W

Width in mm

NW

Nos. of wires (option 2/3/4)

CL

Lead length in mm

WG

Wire Gauge of lead wires in AWG (option 22 to 28 AWG)

CC

Lead wire Construction (See table I)

EXAMPLE (Part Number): TSRE-B-150-2-8-3-1000-24-X

DIMENSIONAL RANCE (IN MM)
PARAMETER
MAX
MIN*
TOLERANCE
LENGHT(L)
600.0
45.0
+/- 5.0
THICKNESS(T)
4.5
2.0
+/-0.25
WIDTH(W)
30.0
6.0
+/-0.20
LEAD LENGTH (CL)
50000.0
1000.0
+50.0/-0.0

Cable Construction

TABLE 1
DESCRIPTION
CODE
TWISTED TEFLON INSULATED / TEFLON JACKETED
X
FLAT TEFLON INSULATED LEADS (Without Jacket)
Y
FLAT POLYAMIDE INSULATED LEADS (Without Jacket)
Z
FLAT TEFLON INSULATED AND JACKETED
W
TWISTED TEFLON INSULATED /SHIELDED/ TEFLON JACKETED
R

** Patent apply