Testing duration and Lead time
Central Research & Testing Laboratory (CRTL), Bengaluru
Distribution Transformers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Distribution Transformers as per IS 1180:2014 | 3 ½ days | 1 week |
Current Transformers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Current Transformers as per IEC 61869/ IS 16227 | ||
Short Circuit test | 3 days | 1 week |
Lightning Impulse / Power Frequency test | ½ day | 3 weeks |
Temperature rise test | 2 days | 10 – 15 days |
Cantilever Test (3 directions) | 1 day | 10 days |
Partial Discharge test upto 66kV | 3 days | 1 week |
Partial Discharge Test 132kV | 3 days | 3 weeks |
Degree of Protection (IP) test | 2 days | 1 week |
Potential Transformers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Potential Transformers as per IEC 61869 / IS 16227 | ||
Short Circuit test (upto 33kV) | 3 days | 1 week |
Lightning Impulse test | ½ day | 3 weeks |
Cantilever Test (3 directions) | 1 day | 10 days |
MCCB
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
MCCB as per IEC 60947 | 20 days | 1 week |
MCB
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
MCB as per IEC 60898 | 4 Months | 1 week |
LV Assemblies
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Distribution Panel Board/Feeder Pillar as per IEC 61439 | ||
Short Circuit and related tests | 5 days | 1 week |
Temperature rise test | 3 – 6 days | 15 – 20 days |
Degree of Protection (IP) test | 2 days | 1 week |
Resistance to Corrosion Test (Severity A), Resistance to UV radiation | 29 days | 1 month |
Power Transformers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Power Transformers | ||
Short Circuit test | 3 days | 1 week |
Lightning Impulse test, Separate source Voltage Withstand Test (upto 100MVA, 220kV) | 1 day | 3 weeks |
Power Cables
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Type test on 1.1kV PVC/XLPE Cables | 25 – 30 days | 1 week |
Type test on 11 kV to 33 kV Cables | 30 days | 3 weeks |
Type test on 66 kV to 220 kV Cable system | 40 to 50 days after completion of installation of accessories | 2 months |
Energymeters
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Electro-mechanical meters (Type test) | 45 days | 1 week |
Static Energymeters (Type test) | 45 days | 1 week |
Prepayment Meters (Type test) | 60 days | 1 week |
Smart Meters (Type test) | 60 days | 1 week |
Protocol testing of IEDs | 15 days | 1 week |
Calibration of Reference Standards | 1 – 7 days (depends on no. of calibration points) | 15 days |
LED / Solar Inverters
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Inverter testing as per IS/ IEC 61683: 1999 | 7 days | 1 week |
Inverter testing as per IS 16169/ IEC 62116 | 14 days | 1 week |
Inverter testing as per IS 16221-1 &-2/ IEC 62109-1 & 2 | 45 days | 1 month |
LED/ Inverter testing as per IEC 60068-2 (1,2,14,30) | 21 days | 1 week |
Inverter testing as per IS 13314: 1992 | 7 days | 1 week |
Inverter/ LED testing as per IS 14700-4-5/ IEC 61000-4-5 | 8 days | 1 week |
Inverter/ LED testing as per IS 14700-3-2/ IEC 61000-3-2 | 4 days | 1 week |
Inverter/ LED testing as per IS 14700-3-3/ IEC 61000-3-3 | 3 days | 1 week |
Pump controller/VFD/ inverter testing as per IS 17018 | 5 days | 1 week |
LED testing as per IS 16102-1 & 2 | 45-250 days | 1 week |
LED testing as per IS 16106/ LM 79-08 | 5 days | 1 week |
LED testing as per MNRE specification | 28 days | 1 week |
Solar PV module testing as per IS 12762-1 / IEC 60904-1 | 7 days | 1 week |
Induction Motor up to 55kW as per IEC 60034-1 or IS 12615 | 5 days | 1 week |
Solar water pumping system as per IS 17018 or MNRE Specifications | 5 days | 1 week |
Solar PV Module testing as per IS 14286/IEC 61215 | 120 days | 1 week |
Photobiological safety test on optical sources or lamps and lamp systems as per IS 16108/IEC 62471 | 5 days | 1 week |
Harmonics test on LEDs/Inverters/VFDs as per IEC 61000-3-2 or 3-12 and IS 17017 (Part 21/Sec 2)/IEC 61851-21-2 for EV Chargers | 1 day | 1 week |
Voltage fluctuations or Flicker test on LEDs/Inverters/EV Chargers/VFDs as per IEC 61000-3-3 or 3-11 and IS 17017 (Part 21/Sec 2)/IEC 61851-21-2 for EV Chargers | 1 day | 1 week |
General safety test on AC or DC EV Chargers as per IS 17017 (Part 1)/ IEC 61851-1 | 30 days | 1 week |
Digital communication test on AC EV Chargers as per IS 17017 (Part 1)/ IEC 61851-1 | 2 days | 1 week |
General safety test on DC EV Chargers as per IS 17017 (Part 23)/ IEC 61851-23 | 10 days | 1 week |
Digital communication test on DC EV Chargers as per IS 17017 (Part 24)/ IEC 61851-24 | 5 days | 1 week |
Insulators
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Electrical tests on Porcelain disc insulators (three samples) | ||
• Lightning impulse withstand | 3 days | 3 weeks |
• Lightning impulse flashover | 3 days | 3 weeks |
• Power frequency withstand, flashover dry/wet | 3 days | 3 weeks |
• Temperature cycle | 3 days | 3 weeks |
• Mechanical failing load | 3 days | 3 weeks |
• Twenty four hours mechanical | 3 days | 3 weeks |
• Puncture | 3 days | 3 weeks |
• Porosity | 3 days | 3 weeks |
• Galvanizing test | 3 days | 3 weeks |
Design test for Polymer Insulators (three samples) | 8 days | 3 weeks |
Steep Front wave test on Porcelain Insulators (ten insulators) | 2 days | 3 weeks |
Mechanical Tests | ||
• Cantilever test (3 directions) | 23 days | 10 days |
• Assembled Core Load test | 23 days | 10 days |
• Damage Limit proof test | 23 days | 10 days |
• Brittle fracture resistance test | 23 days | 10 days |
• Torsion test | 23 days | 10 days |
• Tensile/compression test | 23 days | 10 days |
Insulator Strings
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
132/220kV Strings | ||
• Lightning impulse withstand, flashover | 2 days | 3 weeks |
• Switching impulse withstand | 2 days | 3 weeks |
• Power frequency dry withstand/flashover | 2 days | 3 weeks |
• Power frequency wet withstand/flashover | 2 days | 3 weeks |
• Voltage distribution | 2 days | 3 weeks |
• R.I.V and Corona test | 2 days | 3 weeks |
400kV Strings | ||
• Lightning impulse withstand, flashover | 2 days | 3 weeks |
• Switching impulse withstand | 2 days | 3 weeks |
• Power frequency dry withstand/flashover | 2 days | 3 weeks |
• Power frequency wet withstand/flashover | 2 days | 3 weeks |
• Voltage distribution | 2 days | 3 weeks |
• R.I.V and Corona test | 2 days | 3 weeks |
Mechanical Test | ||
• All types of Fatigue/Vibration test (upto Quad conductors) | 10 days | 10 days |
• All types of Fatigue/Vibration test (six bundle conductors and above) | >10 days | 10 days |
• ‘ I ‘- String | 10 days | |
Single/Double (Composite) | 1 day | 10 days |
Single/Double (Porcelain) | 1 ½ days | 10 days |
• ‘ V ‘- String | 10 days | |
Single/Double (Composite) | 1 ½ days | 10 days |
Single/Double (Porcelain) | 2 days | 10 days |
• Tension String | 10 days | |
Single/Double (Composite) | 1 day | 10 days |
Quad (Composite) | 2 days | 10 days |
Single/Double (Porcelain) | 1 ½ days | 10 days |
Quad (Porcelain) | 2 ½ days | 10 days |
Overhead Conductors
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Type Test | 1 day | 10 days |
UTS/DCR Test | 1 day | 10 days |
Stress Strain test | 1 day | 10 days |
RIV and Corona Test | ½ day | 10 days |
Lightning Arresters
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Electrical Test as per IEC 60099-4 Ed 3.0 | ||
• Residual voltage test | 50 days | 3 weeks |
• Test to verify long term stability under continuous operating voltage | 50 days | 3 weeks |
• Test to verify the repetitive charge transfer rating, Qrs | 50 days | 3 weeks |
• Heat dissipation behavior of test sample | 50 days | 3 weeks |
Electrical Test as per IEC 60099-4 Ed 2.2 | ||
• Residual voltage test | 51 days | 3 weeks |
• Test to verify long term stability under continuous operating voltage | 51 days | 3 weeks |
• Test to verify the repetitive charge transfer rating, Qrs | 51 days | 3 weeks |
• Heat dissipation behavior of test sample | 51 days | 3 weeks |
Low Current Short Circuit Test | ½ day | 1 week |
Partial Discharge Test | ||
• Upto 132kV | 2 days | 1 week |
• Above 132kV | 2 days | 3 weeks |
Mechanical Test | ||
• Mean Breaking load test (cantilever test only) | 2 days | 10 days |
• Specified short-term load test (cantilever test only) | 2 days | 10 days |
Hardware Items (Cable, Anchoring/Suspension clamps, Piercing Connectors)
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Mechanical Test | 1 day | 10 days |
Tensile Test / Compression / Bending Strength on metallic material / other hardware items tested on UTM | 2 to 4 hours (depends on sample size) | 10 days |
Voltage test | 1 day | 1 month |
Corrosion test | 56 days | 1 month |
Climatic ageing test | 44 days | 1 month |
Transmission Line Towers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Prototype Tower Testing | ||
a) S/C or D/C Towers [Including ground assembly & dis-assembly of towers] | 3 months | |
• Weight Up to 5t | 4 days | 3 months |
• Weight Between 5t-10t | 5 days | 3 months |
• Weight Between 10t-15t | 6 days | 3 months |
• Weight Between 15t-20t | 7 days | 3 months |
• Weight Between 20t-25t | 9 days | 3 months |
• Weight More than 25t | 1 day for every additional 4t | 3 months |
b) Multi circuit towers | Additional 1.5 to 2 days for respective Weight category | 3 months |
c) Test on Tower members | ||
• Tensile Test | 2 to 4 hours | 3 days after Tower test |
Capacitors
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
LT Power Capacitors | ||
a) Self-healing type as per IS 13340/IEC 60831 – Routine, Type and Ageing test for 1500 hrs | 80 days | 2 weeks |
b) Non Self-healing type as per IS 13585/IEC 60931 – Routine, Type and Ageing test for 1500 hrs | 80 days | 2 weeks |
AC Motor Capacitors as per IS 2993/IEC 60252 - Routine, Type and Endurance test for 1500 hrs | 80 days | 2 weeks |
HT Shunt Power Capacitors as per IS 13925/IEC 60871 - Routine, Type and Endurance-Ageing test for 1000 hrs | 70 days | 2 weeks |
HT Series Capacitors as per IS 9835/IEC 60143 - Routine, Type and Ageing test for 1000 hrs | 70 days | 2 weeks |
Switchgear Testing & Development Station (STDS), Bhopal
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Distribution Transformer - Up to 630kVA, 11 kV/ 0.433 kV (Station 2) | 1 day | 1 month |
Distribution Transformer (STL) | 2 days | 3 weeks |
Cable (Station 2) | 1 day | 1 month |
LV Panels (Station 2) | 2 days | 1 month |
LV Panels (STL) | 15 days | 3 weeks |
MCB (Station 2) | 2 days | 1 month |
ACB/ MCCB (Station 2) | 1 day | 1 month |
CT (Station 2) | 1 day | 1 month |
Isolator, Disconnector, Earth Switches, AB Switch and GO Switches (Station 2) | 1 day | 1 month |
On Load Tap Changer (Station 2) | 15-40 days | 1 month |
Lightning Arresters (Station-1) | 2 days | 15 days |
Energymeters | ||
• Direct connected Energy meters | 60 days | 50 days |
• Transformer connected Energy meters | 90 days | 50 days |
• Smart Energy Meters | 100 days | 50 days |
Ultra High Voltage Research Laboratory (UHVRL), Hyderabad
Insulator strings, Insulators and other similar equipment
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Upto 132 kV rating | 6 days | 1 week |
Upto 400 kV rating | 6 days | 1 week |
Upto 765 kV rating | 6 ½ days | 1 week |
Bushings
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Upto 132 kV rating | 5 days | 1 week |
Upto 400 kV rating | 5 days | 1 week |
Upto 765 kV rating | 5 ½ days | 1 week |
Distribution / Power Transformers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Distribution / Power Transformers | 1 ½ days | 1 week |
Conductors / Conductor Accessories, Power Connectors
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
RIV and Corona Test (upto 765kV rating) | 1 day | 1 week |
Current Transformers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Upto 132 kV rating | 8 ½ days | 1 week |
Upto 400 kV rating | 9 days | 1 week |
Upto 765 kV rating | 9 days | 1 week |
Inductive Voltage Transformers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Upto 132 kV rating | 6 ½ days | 1 week |
Upto 400 kV rating | 7 days | 1 week |
Upto 765 kV rating | 8 days | 1 week |
Capacitive Voltage Transformers
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Upto 132 kV rating | 8 ½ days | 1 week |
Upto 400 kV rating | 9 days | 1 week |
Upto 765 kV rating | 9 days | 1 week |
Switchgears (Disconnectors, Circuit Breakers, GIS, AB Switches)
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Upto 132 kV rating | 4 days | 1 week |
Upto 400 kV rating | 5 days | 1 week |
Upto 765 kV rating | 5 days | 1 week |
Insulator strings, Insulators for HVDC applications
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
Upto 320 kV rating | 4 ½ days | 1 week |
Upto 500 kV rating | 4 days | 1 week |
Upto 800 kV rating | 4 ½ days | 1 week |
Conductors / Conductor Accessories for HVDC applications
Name of the Equipment | Testing Duration | Laboratory Lead Time |
---|---|---|
RIV and Corona test (Upto 800 kV rating) | 1 day | 1 week |