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OMICRON's CT Analyzer is a unique lightweight electronic multifunctional instrument designed to meet the highest standards for performing excitation, ratio, polarity and winding resistance tests on current transformers (CTs) as well as burden-impedance measurement.
Applications
- Burden measurement
- CT Winding resistance measurement
- CT Excitation characteristic recording
- CT transient behavior measurement (IEC60044-6)
- CT ratio measurement with consideration of connected burden
- CT phase and polarity measurement
- Determination of accuracy limiting factor (ALF), instrument security factor (FS), secondary time constant (Ts), remanence factor (Kr), transient dimensioning factor (Ktd), knee point voltage/current, class, saturated and non saturated inductance
- Assessment according to defined standards: IEC60044-1, IEC60044-6, IEEE C57.13-1993
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Capacitance and Dissipation / Power Factor Test System
OMICRON's CP TD1 unique capacitance and power / dissipation factor (tan delta) measuring instrument is an accessory unit to the CPC 100, completing it with the ultimate insulation diagnosis solution. Controlled by the CPC 100, the CPC 100 + CP TD1 combination provides fully automated testing and reporting capabilities for the comprehensive testing within one portable system.
Applications
- Insulation condition: capacitance Cp, dissipation factor (tan delta), power factor
- Power transformer diagnosis
- Bushing testing
- Circuit breakers insulation diagnosis
- Rotating machines (motors & generators) insulation diagnosis
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The manual desktop operating terminal OT 276 allows manual, easy control of an AC test system.
The device is primarily intended as low cost, stand-alone solution for small AC source, which do not require an embedded control.
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High Voltage test equipment for the utility and power industry:
AC, DC, Impulse Test Sets
Resonant Test Sets
Partial Discharge Detectors
Dissipation Factor & Capacitance Measuring Bridges
Compressed Gas Capacitors
Digital Transient Recorders
HV Components and Devices
Monitoring Equipment
Transformer Loss Measurement Systems
Complete High Voltage Test Floors
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The TMS 580 is a computer controlled high precision measuring system for power transformers. The system has distinguished itself in the rugged environment of the transformer test facility. The design ensures that its control and instrumentation function circuits remain unaffected by interference fields. The system performs automated measurement of:
„ Load loss measurement
„ No-load loss measurement
„ Heat run
„ Induced voltage test
„ Zero sequence measurement
There is also a Wattmeter function to perform quick and easy measurements without any additional calculations. The measuring data are accessible from other host systems for further processing.
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Features
Programmable Test Sequences
Multi-link Solution Software
Tests DCR/ACR/L/C/Z/LL to 200KHz
20 Independent Channels
Versatile I/O RS-232 Interface
Q Factor and Phase Angle
Hi-speed Production Testing
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he DCT ReporteR instrument automatically tests Current Transformers reducing testing time from hours to minutes. Results can be printed out by the 40-character-wide built-in printer, or easily transferred to a PC via RS-232 and USB ports or memory-stick.
Digital Current Transformer ReporteR Features
* Tests turns ratio, polarity and phase angle
* Measures excitation values and presents results in a table or as a graph
* Calculates saturation voltage
* Tests winding resistance
* Tests insulation resistance
* Provides option to design and save customized Test Plans
* Features a built-in current source for secondary injection testing
* Outputs up to 2,000 Vac
* Easily transfer stored data to memory stick or PC via USB port
* ReporteR Software (included) makes report preparation fast and easy
* A large, color multi-language LCD screen and a keyboard
* Extensive memory for test results
* A 40-character-wide built-in printer
* Compatible with Microsoft Excel® and Microsoft Word®
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Model DXR-2000
The Digital Transformer Ratiometer is a lightweight instrument for the precise determination of transformer ratios, polarity, and excitation current.
It is designed for testing distribution transformers at flux densities low enough that the impedance drop resulting from exciting current may be ignored. Accordingly, the voltage ratio obtained will be a precise measure of turns ratio.
Digital Transformer Ratiometer Features
- An important tool for preventive maintenance, transformer production testing and commissioning on all electrical transformers.
- Built-in vector matrix for 3 phase testing - an important feature for diagnostic work
- Accuracy ± 0.05%.
- Measures ratio, polarity and excitation current
- Ratios 2000:1 In 4 ranges
- Direct digital readout of ratio and excitation current
- Electronic ratio calculation
- Portable in sturdy fiberglass case
The ultra precision potential measuring and ratio calculation provides a five digit readout with ± 0.05% accuracy.
Polarity indicator signals relative phasing at all times, while the LCD digital ammeter warns of saturation or shorted turns.
The 3-phase vector switch pack incorporates a convenient push-button switching arrangement which enables the operator to hook up the test lead harness to all terminals of a three-phase transformer in one operation, then proceed to test all phases on every tap setting without interruption or change of leads on terminals. The operator has full control over the test to select or short phases.
Zig-zag transformers, or transformers without an accessible neutral connection, can also be tested with no external shorting.
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1. 320x240 dot-matrix display
2. Test frequency range : 20Hz - 1 MHz
3. Measurement parameters: L, C, Z, Q, SH, BAL, DCR, ACR, TR, LK
4. Measurement Time : 30 mS ( Fast )
5. Memory : 256 instrument setups
6. Interface : Handler,( Option : GPIB, RS232 ,Printer )
7. External Memory interface (Option)
8. DC Bias (Option)
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RET615 is a dedicated transformer protection and control IED for power transformers, unit and step-up transformers including power generator-transformer blocks in utility and industry power distribution systems. RET615 is a member of ABB’s Relion® product family and part of its 615 protection and control product series. The 615 series IEDs are characterized by their compactness and withdrawable design. Re-engineered from the ground up, the 615 series has been designed to unleash the full potential of the IEC 61850 standard for communication and interoperability between substation automation devices.
RET615 is the ultimate protection and control IED for two-winding power transformers and power generator-transformer blocks. RET615 is available in four standard configurations to match the applied transformer neutral earthing principles with either high impedance or numerical low impedance restricted earth-fault protection schemes. CT ratio differences and phase shifts of all commonly employed power transformer vector groups are numerically compensated for. The standard RET615 configurations feature also local or remote control of the transformer HV side circuit breaker.
Due to the standard configurations of RET615 for the transformer protection, the IED can be rapidly set up and commissioned, once it has been given the application-specific settings.
RET615 genuinely supports the new IEC 61850 standard for inter-device communication in substations. It also supports the industry standard Modbus® protocol, and the well-established DNP3 and IEC 60870-5-103 protocols.
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The TS (TrafoSTART) is an electronic relay for the switching single-phase transformers. The magnetization of the transformer core is maintained in limits during energization. This transformer starting method totally eliminates inrush current with minimal start up time (from 0,06 s). The TrafoSTART is suitable for all kinds of transformers – EI, UI, C, toroidal, at al. Parallel connected transformers of different types can be connected to one TrafoSTART. The TrafoSTART is recommended for frequently switched transformers and for low-losses transformers with high working induction. The device is easily installed into the primary lead. The TrafoSTART can replace transformer contactor, when control input is used.
During startup, the transformer core is re-magnetized to opposite value of magnetization with exactly specified increment in each half period of the supply voltage. Magnetizing impulses are revised according to the primary voltage waveform. Such a principle ensures error-free operation without any transformer secondary load.
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The DTP-B is a digital relay that provides high-speed differential and backup instantaneous differential three phase protection functions for power transformers. Different models of the DTP are available for protecting and monitoring transformers with two, three or four windings.
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| ... products without technical information |
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OMICRON's CT Analyzer is a unique lightweight electronic multifunctional instrument designed to meet the highest standards for performing excitation, ratio, polarity and winding resistance tests on current transformers (CTs) as well as burden-impedance measurement.
Applications
- Burden measurement
- CT Winding resistance measurement
- CT Excitation characteristic recording
- CT transient behavior measurement (IEC60044-6)
- CT ratio measurement with consideration of connected burden
- CT phase and polarity measurement
- Determination of accuracy limiting factor (ALF), instrument security factor (FS), secondary time constant (Ts), remanence factor (Kr), transient dimensioning factor (Ktd), knee point voltage/current, class, saturated and non saturated inductance
- Assessment according to defined standards: IEC60044-1, IEC60044-6, IEEE C57.13-1993
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The manual desktop operating terminal OT 276 allows manual, easy control of an AC test system.
The device is primarily intended as low cost, stand-alone solution for small AC source, which do not require an embedded control.
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he DCT ReporteR instrument automatically tests Current Transformers reducing testing time from hours to minutes. Results can be printed out by the 40-character-wide built-in printer, or easily transferred to a PC via RS-232 and USB ports or memory-stick.
Digital Current Transformer ReporteR Features
* Tests turns ratio, polarity and phase angle
* Measures excitation values and presents results in a table or as a graph
* Calculates saturation voltage
* Tests winding resistance
* Tests insulation resistance
* Provides option to design and save customized Test Plans
* Features a built-in current source for secondary injection testing
* Outputs up to 2,000 Vac
* Easily transfer stored data to memory stick or PC via USB port
* ReporteR Software (included) makes report preparation fast and easy
* A large, color multi-language LCD screen and a keyboard
* Extensive memory for test results
* A 40-character-wide built-in printer
* Compatible with Microsoft Excel® and Microsoft Word®
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HB Type Transformer Breathers
The HB Desiccant Breather is ideal for a large range of Transformer sizes. The charge is constructed from high strength poly carbonate with the additional protection of a polythene coated metal screen, it's identical die cast end plates are sealed in position to form a very strong unit.
HBP Type Transformer Breathers
The HBP Desiccant Breather has been specially designed to provide an economical protection device for smaller Transformers having a low oil content. The Breather body and oil seal cup are moulded in high strength polycarbonate, which offers mechanical strength and weather resistance, the transparent material also allows all round visability of the Desiccant at a distance.
The design of the HBP Desiccant Breather allows the capacity to be increased for use on larger Transformers. This is known as the HBP/2.
Multiple Breather Units Types: HB55, HB66, HB77 & HB777
The design of the Hawke Desiccant Breather in its single unit form (i.e. HB2) has been limited to weights and dimensions which enable easy handling during initial installation and subsequent charge replacement. However, parallel arrangements are available for those situations where the oil volume of the transformer requires larger volumes of Desiccant gel.
Where Breather charges are operated in parallel, it is essential that only one oil valve is used, this maintains a balanced air flow through each branch of the multiple arrangement. The pipe work for the connection of two and three breathers in parallel are standard fittings.
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