i-TOR - Model 110S - Autonomous Combined Electronic Current And Voltage Transformer

Combined electronic transformers of the i-TOR-110S type are designed for measuring and large-scale conversion of current and voltage in industrial frequency (50 Hz) AC networks with a rated voltage of 110 kV and a rated current from 100 to 1000 A inclusive, up to electrical values suitable for measurement by standard electrical measuring devices, as well as for creating a galvanic isolation between the high-voltage network and measuring devices.Functionally, the i-TOR-110S is an analog of a set of traditional electromagnetic current and voltage transformers, intended for commercial accounting.The technologies and solutions used in the development and creation of the i-TOR-110S provide small dimensions, the mass of the commercial accounting point and resistance to external environmental factors, which allows it to be mounted not only at substations but also on any anchor support of a 110 kV power line, i.e. almost anywhere on the network.I-TOR-110S can be integrated into any AISQUEE system without significant changes and reconfiguration of the system.The use of i-TOR-110S will improve the accuracy of measuring electrical quantities in 110 kV networks, eliminate calculated methods for determining losses, increase the observability of the network and provide more efficient control modes for the power grid complex.

• Parameter : Meaning
• Rated voltage, kV : 110
• Rated current, A : 100, 150, 200, 300, 400, 500, 600, 750, 800, 1000
• Rated frequency, Hz : 50 
• The rated peak withstand current (peak), to : 108
• Thermal resistance current (1 sec.), kA : 40
• Rated voltage, kV : 110
• Climate version : У1
• Mass of one phase, not more than kg : 70

The transformation parameters of current and voltage

• The transformation of the current
• Current conversion factor (effective values) : Iном/1А
• The range of currents with specified accuracy conversion (RMS values) : (0,01 … 1,2) ×Iном or (1 … 120%) Iном
• Accuracy class of current conversion according to GOST 7746 : 0,5S or 0,2S
• The maximum load power of the output of the current conversion channel, with the load power factor cosφ=0.8 ... 1.0 (effective value) : 2,5 В×А
• Safety factor according to GOST 7746 : 1,5

The conversion to voltage

• Voltage conversion factor (effective values) :   (110 кВ/√3)/(100 В/√3)
• Voltage range with normalized conversion accuracy (effective values) : (0,8÷1,2)×Uном or (50,807÷76,21) кВ
• The maximum load power of the output of the voltage conversion channel, with a power factor φ=0.8 ... 1.0 (effective value) : 2,5 В×А
• Accuracy class of voltage conversion according to GOST 1983 : 0,5 or 0,2

i-TOR-110S is an analog of a current transformer and a voltage transformer in electrical parameters, and can be connected to an ammeter and voltmeter, a meter or an analyzer of the quality of electrical energy, or used as a sensor in other electronic systems for accounting and measuring the parameters of the electrical network.

When using should pay attention to the polarity, matching the nominal voltage of the device and the maximum secondary load to connected devices.i-TOR-110S can be used for organizing paragraphs commercial accounting, which is installed directly on the borders of balance participation of different actors in the retail or the wholesale electricity market.i-TOR-110S included in the State register of measuring devices and can be used for billing purposes, and for the purposes of organizing technical accounting or work in systems for collecting and transmitting data on normal network operation modes.

Due to its unique mass-dimensional indicators, the possibility to work in any position and maintenance-free in operation, i-TOR-110S provide a unique for the world practice the possibility of organizing a suspension point of any anchor pylon or introductory portal substation.Installation of the device can be carried out quickly, within one or two working shifts. When the device is suspended, as a rule, it is not necessary to strengthen the existing support and perform complex technological operations. Standard mounting hardware is used. In addition, since the weight of the device is only 60-70 kg, you can do without using a crane. Lifting the device on the support can be carried out with the help of hoists-blocks, and connections are made using an auto-tower.

The metering cabinet is installed directly on the support. Its location is determined by the requirements of ease of use and security, as well as protection from unauthorized access. Communication devices from the measuring components to the metering cabinet are laid and attached to the support body.

When installing on a support, an important issue is the organization of the power supply of the accounting cabinet. If it is not possible to supply external power, then a tor series self-contained power supply device is used, which is mounted on the same support, parallel to one of the i-TOR measuring phases.