Detailed introduction:
CT series power module is a high reliability, convenient installation transformer induction power supply specially developed by our company for power system. The output voltage of this series of products can be selected arbitrarily within 0-50V according to the customer's requirements (it can not be adjusted after leaving the factory). The rated output power can reach up to 40W, which supports the matching use of various transformers.
Characteristic of CT-type power module:
The product matches the core or open transformer, has the characteristics of automatic power adjustment and constant voltage output; has the function of instantaneous high current protection to protect the safe operation of electrical equipment; the product adopts AC/DC isolation conversion technology.
Conditions of Use
1. The through-hole CT device has a ground insulation withstand voltage of 3KV, which is only suitable for internal insulated cables or for equipotential applications.
2, working temperature, 25 ° C ~ +75 ° C.
3. The altitude does not exceed 2000M.
4. There are no polluting and aggressive explosive media in the atmosphere that seriously affect the insulation of the transformer.
Functional characteristics
1. Compatible with single CT and dual CT power supply, wide selection range.
2. Compatible (split-core) and through-hole current transformers.
3. CT with open circuit and high current impulse protection, while maintaining stable output.
4. Insulation shell, epoxy encapsulation, explosion-proof and flame-retardant, safe to use.
5. Starting from the small load current, the power supply is maintained at the second constant voltage output.
6. Substituting high-voltage PT is economical and practical.
Technical parameters
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AC input
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Input voltage range
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40Vac～200Vac
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frequency range
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47Hz～63Hz
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Protection function
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Over current protection
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105%-300% rated output current; swing machine; self-recovery
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Short circuit protection
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It can be short-circuit for a long time, and can be recovered automatically after eliminating short-circuit.
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working environment
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Working temperature and humidity
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-25℃～+75℃
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Safety and Electromagnetic combination Standard（Notes）
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safety standards
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UL60950-1;EN60950-1
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Insulation strength
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Input-output: 3.0KVa/<10mA.
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Input-ground: 1.5KVa/<10mA.
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Output-ground: 0.5KVDC/<10mA.
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Insulation impedance
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≥100M ohms
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leakage current
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Input-output: 0.25mA.
Input-ground: 0.75mA.
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electromagnetic interference
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Comply with EN55022(CISPR22) Class B
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harmonic current
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Comply with EN61000-3-2
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Anti electromagnetic interference
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Comply with：EN61000-4-2,4,5,11;ENV50204A Heavy Industry Standard
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Notes
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Measurement of ambient temperature at 1 and 25 C
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Ripple Noise Test Method: Using a 12# twisted pair, and connecting 0.1uF and 10uF capacitors in parallel at the terminal, we can measure the ripple noise at the 20 MHz bandwidth of the oscilloscope.
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The power supply will be installed on the final equipment as a component, and the final equipment still needs to meet EMC requirements.
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Product size and wiring diagram
Product size: length * width * height: 142 * 83 * 40MM
Wiring diagram
1. The connection segments S1 and S2 of CT should be connected reliably with S1 and S2 of CT power-taking module respectively (S1/S2 is in no order).
2. The ground wire of open CT should be reliably connected to the ground wire terminal of power equipment.
Attention
l When using, the secondary coil of CT is strictly forbidden to open the circuit. First, the cable should be connected with the CT charging module, and the grounding wire should be grounded, then the open CT should be installed live.
l Attention should be paid to the good contact of ground wire (yellow ground wire) in order to prevent high voltage leakage from endangering personal safety.
l After the CT is installed on the cable, the split core CT should be aligned and tightened with a screw.
Modules available
*Other than above mentioned types can be customized