- •5.3 Test Instructions
- •Table of Allowable Rapid Fluctuations of Certain Key Measurements.
- •5.5.6 Data Verification
- •5.6 Results
- •5.7 Analysis
- •5.7.1 Method of Trending Results
- •5.8 Report
- •HP / IP Turbine Efficiency Test
- •Typical Control Room Data Sheet
- •Point ID
- •Condenser
- •Annexure - I
- •CONDENSER DESIGN DATA
- •Annexure - II
- •TEST READINGS
- •Annexure - III
- •TYPICAL CONTROL ROOM READINGS
- •UNITS
- •kcal/hr
- •3.0 Working And Test Set Up
- •TEST ENGINEER (TE):-----------------------------------------
- •ENGINEERING REVIEW
- •PERSONNEL REQUIRED
- •TEST CREW ORIENTATION
- •REFERENCE DRAWINGS
- •LEAK DETECTOR OPERATION
- •TEST LOG
- •ACCESSIBILITY
- •CONTROL ROOM / UNIT DATA
- •LIST OF INSTRUMENTS & ACCESSORIES REQUIRED FOR AIR-IN-LEAK TEST
- •L. P. Turbine
- •*Total time from leak sensing by instrument to retrieval to zero (0)
- •Unit
- •LOW FEED WATER TEMPERATURE
- •EXCESSIVE MAKEUP
- •HIGH WATER LEVEL
- •EXCESSIVE NUMBER OF TUBES PLUGGED
- •HIGH DRAIN COOLER APPROACH TEMPERATURE (DCA)
- •DRAIN COOLER INLET NOT SUBMERGED
- •IMPROPER SETTING
- •EXCESSIVE TUBE BUNDLE PRESSURE DROP
- •HP Heater Test Data
- •Control Room Readings
- •FAULT TREE
- •LP Heater Test Data
- •Control Room Readings
- •FAULT TREE
- •LOW FEED WATER TEMPERATURE
- •EXCESSIVE MAKEUP
- •WORN VENT
- •HIGH WATER LEVEL
- •TUBE LEAKES
- •HEADER PARTITION LEAKS
- •EXCESSIVE NUMBER OF TUBES PLUGGED
- •HIGH DRAIN COOLER APPROACH TEMPERATURE (DCA)
- •DRAIN COOLER INLET NOT SUBMERGED
- •IMPROPER SETTING
- •EXCESSIVE TUBE BUNDLE PRESSURE DROP
- •EXCESSIVE NUMBER OF TUBES PLUGGED
- •Unit
- •BFP Test Data
- •Typical Control Room Readings
- •Boiler Feed Pump A / B / C
- •Typical DAS Readings
- •Description
- •CONTENTS
- •1.0 Introduction
- •3.1 Process Description
- •4 References
- •4.1 ASME Performance Test Code 4.2 – 1969, Coal Pulverizers
- •5 Prerequisites
- •(A clean air test is performed with the primary air to the mill at full load normal conditions with the mill out of service (normal primary airflow, no fuel flow)).
- •Avg. Velocity
- •6.4 Isokinetic Coal Sampling
- •4.5.2 Unburned in Flyash at Economizer Outlet
- •Summary
- •Dry Gas Loss
- •Gas Temp Leaving AH - Corr. to Design Ambient
- •OBJECTIVE : Determine the amount of Power being consumed by the primary plant equipment.
- •TEST ENGINEER (TE):
- •REFERENCE: ASME PTC 19.6-1955 and TVA Proc. No. TS/PERF/RTST/FOS/16.0
- •BILL OF MATERIALS
- •BILL OF MATERIALS
- •Note: Quantities to be decided as per the requirement
- •2.4 PORTABLE DATA ACQUISITION SYSTEM
- •BILL OF MATERIAL
- •Acquisition
- •EQUIPMENT: Thermocouple wire for flue gas temperature measurement
- •2.9 HIGH VELOCITY THERMOCOUPLE (HVT) PROBE
- •2.11 HIGH VOLUME FLYASH SAMPLER
BILL OF MATERIALS
(A)PRESSURE / DIFFERENTIAL TRANSMITTERS :
Sl.No. |
Range |
Type |
1. |
0-250 kg/cm2 |
Gauge |
2. |
0-60 kg/cm2 |
Gauge |
3. |
0-25 kg/cm2 |
Gauge |
4. |
0-2 kg/cm2 |
Absolute |
5. |
0-0.35 kg/cm2 |
Absolute (Vacuum service) |
6. |
0-1 kg/cm2 |
Diff. Press. (High static Press.) |
7. |
0-2.5 kg/cm2 |
Diff. Press. (High static Press.) |
(B)ACCESSORIES FOR EACH TRANSMITTER :
|
|
Pr.Trans. |
Diff.Pr.Trans. |
|
1. |
Manifolds one for each transmitter |
1 No. |
1 |
No. |
2. |
2 meter signal cables as per spec |
1 No. |
1 |
No. |
3. |
Capillaries |
1 No. |
2 |
Nos. |
4. |
Compression fittings (¼ inch) |
1 No. |
|
2 Nos. |
5. |
Compression fittings (1/2 inch) |
1 No. |
2 |
Nos. |
(C)COMMON SERVICE ITEMS:
1. |
Hand held communicator |
|
1 No. per set of requirement |
2. |
Shielded Extension cable 20 Mtrs. |
)( |
As per requirement |
3. |
Shielded Extension cable 50 Mtrs. |
)( |
As per requirement |
Section: 2.2 Page 6/6
2.3RESISTANCE TEMPERATURE DETECTOR
1.0General Requirements
1.1Resistance Temperature Detectors (RTDs) shall have ungrounded elements
1.2RTD shall be of four (4) wire type. One hundred (100) ohm platinum at 0 oC and shall confirm to DIN - 43760 or equivalent and Element type - Class A
1.3RTDs protective sheath shall be 5 mm OD SS 316, seamless tube using compacted MgO packing for insulation.
1.4Shielded leads will be of teflon insulation and stainless steel/copper
overbraid. Plug and socket for extension shall be 8-pin socket with lead length as 1/2 meters. Overall Insulation sleeves suitable for 260 o C
1.5Extension cable: Shielded cables, teflon insulated for individual leads and overall fiberglass insulation with plug and socket, length 30 meters. Each (Beldon series 88723-22 AWG four conductor with shield or equivalent)
1.6Each extension cable shall be matching with the RTDs and correspondingly
numbered for calibration.
Note: One end to have plug and socket for lead cable and extension lead connection shall be air moisture resistant and rated for 200 o C. Other end of the extension cable shall have connection lugs with it.
1.7Calibration of 2 RTDs of each type with 12 pt. Cal certificate from a national/international standards laboratory.
1.8Calibration of balance RTDs to be certified for 2 fixed pts. by the manufacturer. The calibration for intermediate points to be transferred with reference to the standard RTDs. May choose to go for only six point calibration if two sets are divided as high and low ranges for higher and lower temperature respectively.
2.0Performance Specification
2.1RTDs shall meet the following specifications:
2.2Temperature range 0 - 600 o C
Section: 2.3 Page 1/5
2.3Element resistance at 0 - 100 o C +/- 0.06 OHM
2.4Stability over full range
Better than 0.1 OHMS for 1000 hours of operation
2.5Repeatability over full range Better than 0.1 OHMS
2.6Accuracy as per Clause ‘A’ 0 o C - +/- 0.15 o C
100 o C - +/- 0.35 oC
200 o C - +/- 0.55 oC
300 o C - +/- 0.75 oC
400 o C - +/- 0.95 oC
500 oC - +/- 1.15 oC
600 oC - +/- 1.35 oC
2.7Insulation resistance at 540 o C Greater than 1 Mega OHMS
2.8Calibration for 2 RTDs of each type:
Each RTD will have a 12/6 point calibration (along with extension cable) from a national/international standard laboratory.
2.9a) Calibration points for 12 Pt.
Calibration
(20 o, 40 o, 60 o, 80o, 100o, 200o ) ( 250o, 300o, 400o, 500o, 550o, and 600 oC)
b)Two points test calibration for the rest of RTDS By the vendor – one lower pt. (60o C)
And one higher pt. (550o C)
2.9.1Sheath material & insulation of elements SS 316 & Mgo filled
Section: 2.3 Page 2/5
Annexure to PR
RESISTANCE TEMPERATURE DETECTORS
Quantity Details |
|
Sl.No. |
RTD Length |
1. |
250 mm |
2. |
350 mm |
3. |
450 mm |
4. |
Extension cables with connectors |
Note: Quantities to be decided as per the requirement
Section: 2.3 Page 3/5
TECHNICAL SPECIFICATION FOR RESISTANCE
TEMPERATURE DETECTOR
Technical Data Sheet: Resistance Temperature Detector
The following data shall be furnished for the equipment model quoted.
Sl.No. |
NTPC Requirements |
Vendor Compliance |
Remarks / |
|
|
|
Deviations |
1. |
Manufacturer’s Name |
|
|
2. |
Model No. |
|
|
3. |
Ordering Code |
|
|
4. |
RTD Elements: Ungrounded |
|
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|
|
|
|
5. |
RTD Type: 4 wire, PRT100 as per |
|
|
|
DIN – 43760 element Class A |
|
|
6. |
Leads: teflon insulation, SS over braid, plug |
|
|
|
socket for extension cable and lead |
|
|
|
connection (9 spin), lead length - ½ meter |
|
|
|
overall insulation suitable for 260o C |
|
|
|
|
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7. |
Extension Cable: Shielded cables, teflon |
|
|
|
insulated for individual leads and overall |
|
|
|
fiber glass insulation with plug and socket, |
|
|
|
length 30m each (As per Beldon series |
|
|
|
88723-22 AWG four conductor with shield) |
|
|
|
|
|
|
8. |
Each extension cable shall match with the |
|
|
|
RTDs and correspondingly numbered for |
|
|
|
calibration. |
|
|
|
Note: One end to have Plug & socket for lead |
|
|
|
cable to extension lead connection shall be |
|
|
|
air moisture resistant and rated for 200o C. |
|
|
|
Other end of the extension cable shall have |
|
|
|
connection lugs with it. |
|
|
9. |
Calibration of 2 RTDs of each type with 12 |
|
|
|
point calibration certificate from a national/ |
|
|
|
international standards lab. |
|
|
|
|
|
|
10. |
Calibration of balance RTDs to be certified |
|
|
|
for 2 fixed points by the manufacturer |
|
|
|
|
|
|
11. |
Performance requirements specification |
|
|
|
|
|
|
Section: 2.3 Page 4/5
11.1 |
Temperature range: 0 – 600o C |
|
|
11.2 |
Element resistance at 0 – 100o C |
|
|
|
+ / - 0.06 OHM |
|
|
11.3 |
Stability over full range: Better than 0.1 |
|
|
|
OHMS for 1000 hours of operation |
|
|
11.4 |
Repeatability over full range: Better than 0.1 |
|
|
|
OHMS |
|
|
11.5 |
Accuracy: As per Clause ‘A’ |
|
|
|
0o C - +/- 0.15o C |
|
|
|
100o C - +/- 0.35o C |
|
|
|
200o C - +/- 0.55oC |
|
|
|
300o C - +/- 0.75 oC |
|
|
|
400o C - +/- 0.95o C |
|
|
|
500o C - +/- 1.15o C |
|
|
|
600o C - +/- 1.35o C |
|
|
11.6 |
Insulation resistance at 540 o C |
|
|
|
greater than 1 Mega ohms measured at 220 V |
|
|
|
DC |
|
|
11.7 |
Calibration for 2 RTDs of each type: |
|
|
|
Each RTD will have a 12 point calibration |
|
|
|
(along with extension cable) |
|
|
11.8 |
a) Calibration points for 12 point |
|
|
|
calibration |
|
|
|
(20o, 40o , 60o , 80o , 100 o, 200o) ( 250o , |
|
|
|
300o) |
|
|
|
400o, 550o, and 600o C |
|
|
|
b) Two points test calculation for the rest of |
|
|
|
RTDS by the vendor – one lower pt. (say 60o |
|
|
|
C) and one higher pt. Say (550o C) |
|
|
11.9 |
Sheath material & insulation of elements |
|
|
|
SS – 316 & MGO filled |
|
|
Note: A Data sheets to be submitted along with the offer clearly indicating deviations, if any
BDetailed Q. P. & Type test report after ordering to be submitted for approval
CTest & Guarantee Certificate to be submitted before the dispatch clearance
Maintenance: After sales maintenance support to be available in India through authorized representative or directly.
Section: 2.3 Page 5/5