DILO SF6 GAS Handling Products

MiCOM P72x high impedance differential protection series provides high impedance differential protection for generators, reactors, motor and busbar applications. Models available: MiCOM P721, MiCOM P723.

Applications

P721 offers reliable protection for busbars, transformers windings, generators, reactors and motors. P721 is suitable for restricted earth fault (REF) or balanced earth fault (BER) applications. P723 is suitable for busbar and machine phase differential protection.

MiCOM P721 also offers the same application benefits as traditional high impedance electromechanical protection schemes, it combines the added benefits of numerical technology to provide advanced communications, event records, fault records, disturbance records and ancillary protection features.

Combined with the MiCOM P79x, a standalone metrosil and resistor unit, it provides simplified scheme engineering for single or three-phase differential applications.

Standard Manufacturers Warranty: 2 years

Benefits

Numerical High Impedance Relay

• Simple scheme engineering
• Reliable algorithm - stable for through fault and fast trip for internal fault
• Supervision functions included in the same protection box
• Set by current or voltage
• Numerical relay features

• Remote and Advanced displays available
• Digital I/O: 0-10 Inputs/4-8 Outputs
• Analog Outputs: 1 Output 
• Two Modbus communication ports
• 0-8 temperature sensor inputs
• LPCT: low-power current transducer complying with standard IEC 60044-8
• Removable memory cartridge with parameters and settings for quick commissioning after replacement
• Built-in logic matrix and equation editor

Characteristics:

• 3 types of User-Machine Interface
• 4 current inputs 
• 3 voltage inputs 
• 28 binary inputs
• 16 binary outputs
• logic equation editor 
• IEC 61850 w/ GOOSE 
• 1 Modbus communication port
• 16 RTD inputs
• removable memory cartridge with parameters and settings for quick commissioning after replacement

Easergy MiCOM P541-P546 series provides high-speed current differential unit protection. The P54x is designed for all overhead line and cable applications, as it interfaces readily with the longitudinal (end to end) communications channel between line terminals. The interface options support direct fibre optic, or multiplexed digital links.

Optimum selectivity is assured, as the scheme measures the currents entering and leaving the protected plant item. Instantaneous tripping results for an internal fault, with stability for any out-of-zone fault. Tripping uses a proven characteristic comparing differential current with through current, for ease of testing. Phase differential elements of this type offer consistent detection of solid and resistive faults, with optimum faulted phase selection, tripping, and indication.

A full range of back-up protection is integrated. This enhances the dependability of the protection, as hot-standby elements (such as distance zones and overcurrent) can be brought into service whenever a signalling channel outage may occur.

EVACUATING AND REFILLING DEVICE

For evacuation of air and refilling of gas compartments from SF6 gas bottles

3-001-4-R002
Evacuating and refi lling device
Mobile as cylinder cart

3-001-4-R022
Evacuating and refi lling device with electronic weighing scales 0 - 120 kg
Mobile as cylinder cart

3-001-4-R122
Evacuating and refi lling device with electronic weighing scales 0 - 150 kg
Mobile as cylinder cart

In practice, the device covers two important functions. The integrated vacuum pump is the core component of the device. This vacuum pump evacuates the air down to < 1 mbar so that no air/gas mixture is produced during the subsequent filling process. The well proven DILO coupling principle ensures safe handling without emission.

Using the 3-001-4-R022 version the filling weight can be registered comfortably by means of a weighing scale. The weight is indicated on the illuminated display which switches off automatically if the scales are not used for a certain time. Thanks to the tare function high precision quantification of gas inputs and outputs is possible.

Other features:

• Stable frame
• Accuracy of the weighing scales ±20 g (±50 g only for 3-001-4-R122), 10 g increments
• Integrated serial interface for data exchange or monitoring
• No emissions by self-closing couplings
• Available as accessories for the world‘s most commonly used bottle connections
• Hose reel
• Couplings can be exchanged without any gas loss
• Primary gauge NG63, class 1.6 / Secondary gauge NG100, class 1.0

MULTI-ANALYSER SF6

For verification of several parameters in one operation

3-038R-R...
MULTI-ANALYSER SF6 with return system

This multi-functional device allows the determination of up to six quality parameters with only one measurement:

• SF6 concentration (%)
• Moisture concentration
• SO2 concentration (ppmv)
• Option: HF concentration (ppmv)
• Option: CO concentration (ppmv)
• Option: H2S concentration (ppmv)

If sensors need to be calibrated, they can be easily exchanged on site by the user. The device is immediately ready for use without loss of time based on the “Plug & Play“ principle.

The Multi-Analyser SF6 is a battery-operated, compact, user- and maintenance-friendly device which guarantees high measuring accuracy. The unit allows di­fferent kinds of measurements and treatment of the measured gas in one of the following ways:

» The measured gas can be stored in an internal storage vessel and pumped back into the gas compartment (up to 10 bar pe)
» For measurements on cylinders, vessels or gas compartments with higher pressure (max. inlet pressure 35 bar pe)
a pressure reducer is not needed. If the gas should not be pumped back into the SF6 filled equipment, a cylinder can be connected directly to the outlet. It is not necessary to disconnect the device from the gas compartment, the vessel or cylinder with the higher pressure.
» An external gas collecting bag can be connected allowing continuous measurements (inlet pressure max. 35 bar pe) without pumping the gas back. The external bag can be emptied by using the Multi-Analyser SF6, a service cart or compressor unit.

• No gas emissions during the measuring process
• Modular interchangeability of all sensors
• Operation with or without battery (external power supply)
• Exchangeable battery (replacement and separate shipping is possible)
• Easy and user-friendly menu navigation via high quality 7“ capacitive colour touch screen
• Optional remote control

• Automatic interval measurement is possible
• USB and LAN connection
• Storage of up to 500 measurement results with name
• Adjustable user languages: DE, EN, FR, ES, IT, PT, CZ, PL, CN, JPN, RUS
• Compact design, easy handling and transportation (installed in a trolley case)

EVACUATING AND REFILLING DEVICE

For evacuation of air and refilling of gas compartments from SF6 gas bottles

3-001-4-R002
Evacuating and refi lling device
Mobile as cylinder cart

3-001-4-R022
Evacuating and refi lling device with electronic weighing scales 0 - 120 kg
Mobile as cylinder cart

3-001-4-R122
Evacuating and refi lling device with electronic weighing scales 0 - 150 kg
Mobile as cylinder cart

In practice, the device covers two important functions. The integrated vacuum pump is the core component of the device. This vacuum pump evacuates the air down to < 1 mbar so that no air/gas mixture is produced during the subsequent filling process. The well proven DILO coupling principle ensures safe handling without emission.

Using the 3-001-4-R022 version the filling weight can be registered comfortably by means of a weighing scale. The weight is indicated on the illuminated display which switches off automatically if the scales are not used for a certain time. Thanks to the tare function high precision quantification of gas inputs and outputs is possible.

Other features:

• Stable frame
• Accuracy of the weighing scales ±20 g (±50 g only for 3-001-4-R122), 10 g increments
• Integrated serial interface for data exchange or monitoring
• No emissions by self-closing couplings
• Available as accessories for the world‘s most commonly used bottle connections
• Hose reel
• Couplings can be exchanged without any gas loss
• Primary gauge NG63, class 1.6 / Secondary gauge NG100, class 1.0

MEGA SERIES

Maintenance unit for large and extra-large gas compartments

L170R01

The L170 maintenance unit has been developed as entry-level model of the Mega Series for the gas handling on large gas compartments. Thanks to the state-of-the art control all functions run automatically and are displayed on a 10“ multi-touch screen. A new software with intuitive user navigation makes operation very easy and comfortable. This service cart can optionally be operated via smartphone, tablet or laptop.

Precondition for the construction of this series which allows SF6 gas recovery down to < 1 mbar was emission-free gas handling. When using the totally gastight DILO couplings and connecting systems emissions will have no chance! Short gas recovery and evacuating times are obtained by using a coupling DN40.

The L170 series is available with a second DN20 connecting coupling (as option) so that two work steps can be carried out simultaneously. Thus it is possible to evacuate air from a gas compartment while filling SF6 at the same time or recovering gas from another gas compartment. Multitasking in practice.

Other features:

• Devices for liquid storage of SF6 gas
• SF6 gas recovery down to < 1 mbar
• Automatic control and high quality capacitive 10" multi-touch screen
• Optional remote control via mobile devices
• Reversing switch for direction of rotation
• Digital weighing scales for SF6 cylinders
• Residual gas recovery down to 1 mbar during filter change
• Reduction to transport pressure as integrated special function
• All versions are available with tanks which can be assembled under the device with CE marking also available with SQL and ASME approval
• The service carts can be mounted on a trailer