CT Power Supply Current Transformer For Power System High Voltage
Power
The ct power acquisition device is a new type of power supply
device that uses the principle of electromagnetic induction to
acquire electric energy and realizes a stable voltage output. The
device has long-term stable and reliable operation, mature
technology, strong adaptability to changes in the current of the
transmission line, self-protection of short-circuit and inrush
current, and can provide reliable power for various transmission
line online monitoring and monitoring equipment.
1. The principle of CT power supply
CT power supply, that is, use the CT installed on the power line as
a device to obtain power. The power supply is divided into two
parts, one is the CT used to obtain electricity, and the other is
to convert the electrical energy obtained by the CT into the
required DC voltage and current power supply module.
Application range:
1. Mainly used in high-voltage cable transmission, where
low-voltage AC power and DC power cannot be obtained. Work site
2. The high-voltage cable must have an environment that provides CT
energy
3. Overhead cables, underground branch cables, branch boxes, etc.
are all suitable for CT energy extraction (three-core cables cannot
extract energy)
4. The energy extraction of the CT power extraction device depends
on the primary current of the high-voltage cable. If the energy
extraction device can meet the load equipment, the energy
extraction equipment can be customized or multiple CTs can be used
in parallel to increase the power extraction capacity.
5. The high-voltage line and the power failure or the serious lack
of current make the back-end loaded equipment unable to work
normally. The CT power taking device wakes up the super capacitor
and switches instantly, and the super capacitor continues to supply
energy to the loaded equipment to ensure that the power is cut off
and the current is insufficient. Can continue to work under the
circumstances.
6. The specific performance parameters of the CT power take-off
device need to be customized according to the actual situation of
the project.
Feature:
1. Reasonably select the induction power supply and its energy
storage components according to the conventional operating value of
the wire current, power curve and electric power;
2. Due to the magnetic circuit, there will be a slight ticking
sound when the energy transformer is working, which is a normal
phenomenon;
3. The principle of the induction power supply module is completely
different from that of the conventional power supply, and it must
not be connected to other power interfaces;
Parameter:
| Model | Input current(A) | Output current | accuracy |
| HMKCT-45HW | 300A-2000A | 5A/1A | 0.5 |
| HMKCT-55HW | 400A-1000A | 5A/1A | 0.5 |
| | | |
diagram
