The test setup will be suitable to carry out the following tests as per IS 15884 on single phase and three phase meters. Three phase meters will be tested phase wise.
a. Short Time Over Current Testb. Fault current making capacity c. Short Circuit Current Carrying capacityd. Endurance Test
There will be three modules namely:
a. Transformer with tapsb. Control Console: This will house computer, Monitor & interface Module for Datalogging.c. Load Bank :
1. Resistive Load Bank2. Inductive Load Bank
Separate trolley for ease of movement and portability on lockable castor wheels
Enclosed in MS trolley with hinged covers with door open (safety) interlocksInbuilt control circuit plus housing of PC
Control cabling terminals for remote (physically separate)operation from the transformer trolley and load bankSoftware features1. User hierarchy for untamperable results and test settings.
Pre-configurable test recipies for speed of testing – saves time of testing engineerer.
Current and waveform plotting as well as cursor pinpointing for exact reading of waveform parameters.
Scale adjustment and setting for convenience of waveform viewing.
Data and waveform storage.
In built diagnostic mode.
Makes the system easy to configure and use.
Output current and PF setting.
Tapping and selection of test current.
Suitable Resistive and Inductive load bank will be provided to achive the Test current 6kA at the power factor from 0.6 to 0.9.
Transformer will be capable of supplying up to 6000A for 10mSec.
Display will be provided for indication and measurement of voltage, current, PF, Frequency.
Controller to set the current, select the current range, set the no of operations and count the no. of operations.
Fuse protection and over current protection with MCCB for primary circuit, provision for emergency switch off button will be provided.
Suitable terminals will be provided to STOC unit for easy connection with the voltage and current terminals with energy meter.
Operating temp 5°C to 40°C.
The specifications given are those chosen by CPRI, however, we can customize the specifications as per the client wish.
The test bench is designed to conduct short circuit tests. The test is different from a conventional short time over current test in the sense that the tests are conducted at rated voltage and they are:
1. Short Time Over Current Test2. Fault current making capacity3. Short Circuit Current Carrying capacity4. Endurance Test.All the tests appear in IS 15884 and are now mandatory for energy meters