SFRA Accessories Ensure testing accuracy with SFRA accessories
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Doble SFRA Accessories include two options for measurement cables, as well as a performance verification cell to help you confirm that your M5400 Sweep Frequency Response Analyzer and leads are working properly.
These accessories give you the opportunity to choose what best fits your testing program and ensure testing accuracy.
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Due to global battery shortages the ii910 Precision Acoustic Imager will be shipped with 1 (one) rechargeable battery Your second battery will follow later. Sorry for any inconvenience this might cause you.
- Phát hiện phóng điện cục bộ nhanh chóng và dễ dàng.
- Giảm số lần mất điện và tăng thời gian vận hành
- Cắt giảm chi phí và tiết kiệm năng lượng hàng ngày bằng cách tìm ra và khắc phục phóng điện cục bộ
- Chế độ PDQ để chụp và phân tích phóng điện cục bộ
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Use the Doble M5400 Sweep Frequency Response Analysis test set to investigate mechanical integrity of transformers, reactors and other equipment consisting of windings. If you measure the frequency response of a winding then you can identify winding movement.
The M5400 sends an excitation signal into the transformer and measures the returning signals. Comparing this response to baseline readings and results from similar units allows you to identify deviations and confirm internal mechanical problems.
The M5400 reduces the uncertainty about apparatus condition by providing solid evidence of mechanical integrity or winding movement. Use it to help determine how a transformer is deteriorating, if it can go back in service after a fault or if it has been damaged during transit.
Apply the M5400 during factory tests, after transportation, crane delivery, system faults or even routine maintenance in order to get a baseline test result for future evaluations.
DESCRIPTION
Megger’s new range of DC insulation testers, MIT515, MIT525, MIT1025 and MIT1525 are targeted at original equipment manufacturers and industrial companies.
The top of the range MIT1525 performs insulation resistance tests up to 15 kV with a 30 TΩ maximum resistance and an accuracy of ±5 % from 1 MΩ up to 3 TΩ
The MIT515 offers IR, DAR and PI functions but has no memory functionality
MIT525, MIT1025 and MIT1525 have a full suite of test modes as well as on-board memory and the ability to stream data / download data to a PC / laptop.
Instrument productivity is a focus of the new MIT range, which offers rapid charge batteries and operation from an AC source if the batteries are flat
Rapid charge batteries enable > 60 minutes testing after a 30 minute charge.
MIT515: 5 kV IRT with PI and DAR but no memory
MIT525: 5 kV IRT with all test modes including a ramp test plus advanced memory functions with recall to screen, RTC for time/ date stamp of results and USB cable interface to PC / PowerDB
MIT1025: 10 kV IRT with all test modes including a ramp test plus advanced memory functions with recall to screen, RTC for time/date stamp of results and USB cable interface to PC / PowerDB
MIT1525: 15 kV IRT with all test modes including a ramp test plus advanced memory functions with recall to screen, RTC for time/date stamp of results and USB cable interface to PC / PowerDB
Safety rating is not compromised on the MIT range with all terminals safety rated to CAT IV 600 V to 3000 m (5 kV, 10 kV) or CAT IV 1000 V to 3000 m (15 kV)
A range of 5 kV and 10 kV test leads are available plus dedicated 15 kV test leads, which are double insulated with clips designed for 15 kV creepage paths
The 15 kV leads are supplied in a holdall
Suitably rated HV gloves and other personal protection equipment are required to be worn when testing.
The MIT range share dual case design, which includes a tough outer case to protect the tester from knocks/drops and an inner fire retardant case
The IP rating is IP65 case closed eliminating moisture and dust ingress.
An intuitive user interface ensures no lost time remembering how to use the tester
Simplicity of operation is achieved with two rotary switches and the large backlight display which enables multiple results to be shown simultaneously
A graphical Quick Start Guide is provided inside the lid to assist first time users.
Five preset voltage ranges are provided in insulation test mode, plus a user settable lock voltage range
Preconfigured diagnostic tests include Polarisation Index (PI), Dielectric Absorption Ratio (DAR), Dielectric Discharge (DD), Stepped Voltage (SV) and Ramp Test.
Test leads are double insulated (t) with clamps rated at 3 kV (t) equivalent to 6 kV single insulation for the medium clip leadset and 5 kV (t), equivalent to 10 kV single insulation for the large clip.
The 15 kV leadset is insulated to 15 kV.
Advanced memory storage includes time/date stamping of results, logging of data and recall of results to screen
A fully isolated USB device interface (type B) is used for safe transfer of data to Megger’s PowerDB / Pro, Advanced and Lite asset management software. (MIT525, MIT1025 nd MIT1525 only)
Fast scanning at substation to discover defects
Wide range of sensors for more accurate result
Dual channel for different detectionmethod comparison
Reduce unnecessary sensor changes
Multiple display modes to see PD detail
Auto-recognition of PD type and
Noise pattern helps analysis process
Signal recording of both channels
NFC tag function improve on-site test procedure
Eliminate unscheduled downtime and minimize scheduled downtime
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