| Product description: |
- Completely-enclosed, good mechanical behavior, suitable environments, strong voltage
isolation ability, delicate appearance;
- The secondary lead wire is pin format, which can be directly welded on a PCB;
- The mechanical dimensions for this series of PTS are relatively small, hence can be used an
electronic component;
- Good lineaity, high precision, wide operating range;
- PBT anti-combustion plasic casing;
- Encapsulated with epoxy resin to ensure strong insulation ability.
Usage of current-voltage transformer
PT series products are mini current type voltage transformers, are widely applied to
the electric quantity transmitter, power monitor and so on, circuit of typical applications as
shown in Fig.1 and Fig.2. Input and output current ratio is 1: 1, maximum input current is
10mA, primary input voltage should be less than 1000V (connecting with current-limiting
resistor), allowable ratio difference±0.1% and angular difference ±10 ' , zero load.
- Fig.1 Secondary load almost is 0, when the measured input voltage VIN subject to current
limiting by the current-limiting resistor R1N, the produced current of 0-2mA flows through
the mini voltage transformer, the transformer detects the same current of 0-2mA, it is
able to adjust the feedback resistance R through operational amplifier, to get the needed
voltage output on the output terminal.
- Fig.2 Parallel resistance R direct output circuit, resistance R not more than 500Ω
(maximum output voltage 1.5V). As the circuit has large load, the phase difference is larger
correspondingly, but the linearity is essentially unchanged. |
| Model | Specifications | Rated Pr current | Max Current | Rated Sec Current | Rated sampling voltage | Load Resistance | Accuracy Class |
| PT-402 | 2A/2mA | 2mA | 10mA | 2mA | 100mV | 50Ω | 0.1 |
| 5A/5mA | 5mA | 10mA | 5mA | 100mV | 20Ω | 0.1 |
Features:
low voltage current transformer
PBT housing, high temperature resistance, corrosion resistance; epoxy potting, good barrier properties, impact resistance; small size, beautiful appearance, easy to install, plug pin soldered directly to the circuit board; circuit is simple, reliable, and not an operational amplifier, No external DC power supply (only voltage type).
Products are widely used voltage load remote monitoring, electronic control system voltage of the input signal, a voltage meter to measure the signal, high-frequency voltage detection and so on.
Note:
? Housing material: PBT resin, 94-V0 flammability rating
? Internal insulation: epoxy potting
? dielectric strength: 2500V/min.
? Impulse voltage: 5000V (1.2/50μs standard lightning)
? Insulation Resistance: 1000M Ohms @ 500 Vdc
? Operating Temperature: -25 º C to +55 º C, -40 º C to +85 º C
? Operating frequency :50-400Hz
? Accuracy class: Meets IEC 60044-1 0.1,0.2 level, linearity level 0.1L
? Environmental: RoHS environmental requirements
Application :
Electronic energy meter, power transducer, precision power meter and other power and energy monitoring devices
Over current protection circuit of motor and other electrical appliances.
Useage: Work in all kinds of electrical meter and metering fields.
Strength: 1. Good material, sampling resistance precision and stable.
2. Various type.
3. Good service: make according to customer requirement.
4. Good electrical performance
We can produce it according to customers' requirements.
Electronic energy meter, power transducer, precision power meter and other power and energy monitoring devices
Over current protection circuit of motor and other electrical appliances
How to Order?
1. Please let us know what kind of model, color, poles and rated current etc.
2. Proforma invoice (PI) will be sent to you.
3. Please check and confirm the PI.
4. Once we confirmed the order, please pay it soon.
5. After full payment, all goods will be sent to you in 3-5 days as usual.
6. OEM/ODM is welcomed. Free OEM for more than 5000 sets orders.
Shipping:
1. Products are shipped via UPS / DHL / EMS / HK EMS / FedEx / TNT and so on expresses (door to door).
2. We Provide Drop shipping Service.
3. 5 days delivery upon receiving payment if the qty is lower than 1000PCS and it is not customized products.
4. In order to ensure you receive your order tax free upon import, we declare lower value.
5. Shipping via EMS. UPS. FedEx and TNT express usually takes 3~7days dependent on the destination country.
Payment:
1. We accept Western Union and T/T
2.30% deposit and 70% before shipping
3. No payment collection. We only can deliver goods after getting full payment.
Warranty:
1. We provide 1 year warranty.
2. If the product is defective, please notify us within 3 days of delivery.
3. All products must be returned on their original condition, in order to qualify for a refund or exchange of goods
Our Commitment
BETTER PRICE than other sellers for you because of Factory Direct Sale
BETTER QUALITY than before caused by our 10+ years experience about CT
STOCK IN TRADE always own to our Fast & Professional production line
FAST DELIVERY always made by our GROUP's Enthusiam
TIMING REPLY in 24 hours all about our TEAM's Passion & Patience
Please feel free to email us if any questions.
It's Our Pleasure to Serve You.
YOUR BENEFITS IS OUR BUSINESS!
FAQ
1.Question : Are you a factory or trading company ?
Answer: We are an SGS recognized OEM/ODM manufacturer factory with export license. We have an outstanding and experienced team made up of "A" player who have a passion for doing something great to create more value for customers world-wide.
2. Question : Why choose cooperate with us ?
Answer : -- Right people, Right product, Right price ;
-- Company-wide customer awareness ;
-- Reliable Quality and All components from world leading suppliers ;
-- Cost-effective export infrastructure and total supply chain management ;
3. Question : Where is your factory located ? How can I visit there ?
Answer: With an ISO90001 certified factory located in Yueqing city , zhejiang Province , P.R. China . It takes about 4 hours from SHANGHAI by train and 45 minute by air . It is very pleasure for clients to visit us.
4. Question : Can you do OEM ?
Answer : Yes, we have the ability to do OEM / ODM to meet clients' requirements.
How to contact us ?
Send your Inquiry Details in the Below, Click "Send" Now! Free samples are waiting for you.
We are the professional manufacturing the 0.5-35 KV outdoor indoor, fuse cut out composite insulator dry type, oil-immersed, combined transformer, electrical energy meter, power capacitor correction bank, low voltage stablizer and so on
1. Who we are
Heyi is dynamic company established in 1992, who specializes in research and design, manufacturing, and distribution of all kind ofcurrent transformer
Further more, we also develop ours business for the electrical product, like energy meter, power meter, power capacitor, relay, proximity switch and so on, focusing in ours customers needs, provide the best solution supporting ours customers, be the best in their filed of businss
2 why choose us
We have our own facilities for R&D, Production, Sales & Market, and Customer Support, specializing in the design, manufacture and delivery of customized solution. Equipped with all kinds of professional instruments and testing equipment, combined the professional standard of product testing methods, now we has an annual output of 5, 000, 000 or more products.
3 Heyi Mission, vision values
Heyi mission is to provide reliable, accurate and customized current transformer solution
Heyi vision is leading global split core CT manufacture and energy solution provider
Values Enthusiastic by our work, we offer a quality personal and close service to our customers
Some products have been approved by CE and IEC certificates.
