Specifications 2500:1 ratio minature voltage current transformer for Electronic Watthour Meter \ With or without DC Immunity
minature current
Packaging & Shipping standard carton with strong pallet 1.We have abtained VDE,UL,CE,ROHS,ISO9000 Approal and SGS Audit Supplier in China. We guarantee quality is the first. 2. Miniature Current Transformers \ For Electronic Watthour Meter \ With DC Immunity :
What it Electronic current transformer design with 0.2s 15a 20a 50a 60a 80A 100A Features
Low cost
More than 30 standard sizes
Non-symmetrical mounting pattern
Applications
For applications that require exceptional accuracy with minimal phase angle error
Applications would include Voltage,power and energy monitoring devices.
Specifications
Exterior Material:PBT Resin UL flame retardant rating 94-V0
Interior Insulation:Epoxy Encapsulated
Isolation Voltage:2500 Vrms for 1 minute
Dielectric Resistance:1000 M Ohms @ 500 Vdc
Surge Withstand:5000V(1.2/50μs standard shock wave)optional
Rated Load Resistance:100K Ohms
Operating Temperature:-25 to +55°C,-40 to +85°C optionalFrequency:50 to 400 Hz
Accuracy Class:as defined in IEC 60044-2 Part 2
Voltage Transformers Class 0.1
RoHS Compliant Specialties:
1,The printing circuitiy board is direct-jionting fixed,design is reasonable.;
2,Small bulk,high precision;whole occlude,The machinery and bears the environment performance to be good,strong ability in closing off the pressure and on the safe side..
Using terms:
1,Environment temperature:-40°C~+85°C;
2,Relative humidity:when temperature is 40°C ≤90%.
Working frequency bound:20Hz~20KHz. 3. Miniature Current Transformers \ For Electronic Watthour Meter \ Without DC Immunity
Features: Low cost
More than 30 standard sizes
Terminal: PCB Mounted or Lead
Toroidal Nanocrystalline and Nickel Alloy cores available
Applications:
For applications that required high precision
and minimal phase angle error watt-hour metre ect. electric energy measureme device
Specifications:
Exterior Material: PBT Resin UL flame retardant rating 94-V0
Interior Insulation:Epoxy Encapsulated
solation Current:2500 Vrms for 1 minute
Dielectric Resistance:1000 M Ohms @ 500 Vdc
Operating Temperature:-25 to +55℃,-40 to +85℃ optional Frequency:50 to 400 Hz
Accuracy Class:as defined in IEC 60044-1 Part 1 Current Transformers Class 0.1,0.2 RoHS Compliant 4.Mini Current Transformer for protection relay:
Features
Low cost
More than 50 standard sizes
Non-symmetrical mounting pattern
Toroidal Silicon steel and Nickel Alloy cores available
Applications
For applications that require exceptional accuracy with minimal phase angle error
Applications would include Current, power and energy monitoring devices.
Specifications
Exterior Material:PBT Resin UL flame retardant rating 94-V0
Interior Insulation:Epoxy Encapsulated
Isolation Current:2500 Vrms for 1 minute
Dielectric Resistance:1000 M Ohms @ 500 Vdc
Surge Withstand: 5000V(1.2/50μs standard shock wave)optional
Rated Load Resistance:100K Ohms
Operating Temperature:-25 to +55℃,-40 to +85℃optional
Frequency:50 to 400 Hz
Accuracy Class:as defined in IEC 60044-1 Part 1 Current Transformers Class 0.5,1.0 RoHS Compliant 4.Minature CT /Single Turn primary current transformer for measurement:
Features:
Low cost
More than 50 standard sizes
Non-symmetrical mounting pattern
Toroidal Silicon steel and Nickel Alloy cores available
Applications
For applications that require exceptional accuracy with minimal phase angle error
Applications would include Current, Power and Energy monitoring devices.
Specifications
Exterior Material: PBT Resin UL flame retardant rating 94-V0
Interior Insulation: Epoxy Encapsulated
Isolation Current: 2500 Vrms for 1 minute
Dielectric Resistance: 1000 M Ohms @ 500 Vdc
Surge Withstand: 5000V(1.2/50μs standard shock wave)optional
Operating Temperature:-25 to +55℃,-40 to +85℃optional
Frequency: 50 to 400 Hz
Accuracy Class: as defined in IEC 60044-1 Part 1 Current Transformers Class 0.1,0.2
RoHS Compliant
CE-approved We can produce other related minature current tranformer include of \ For Fault Recording\Passive or Active ; \ For Protection Relay \ For Transient Protection Relay ; 3-phase Minature current transformers for Motor Protection Relay .
B: Miniature Voltage Transformers\ Toroidal core, PCB series:
The GREWIN TV series of miniature voltage transfor -mers are designed for applications where AC voltage signals must be transformed accurately into a lower AC voltage signal appropriate for micro-processor based circuits. series of toroidal core, PCB voltage transformers are designed specifically for integration into products which require exceptionally accurate primary signal transformation while exposed to harsh environmental operating conditions. A TV model can be designed and manufactured to meet the specific design challenges of the client’s specific application.The following models are only a small sampling of the many different products which have been and are currently being manufactured. 1.Minature voltage transformer:
2.The following size is for TV31 Series current type voltage transformer :
The TV31 series current type voltage transformer is actually a current transformer with ratio 1:1. For application, the line voltage should not be directly put on to the transformer, it needs to connect a limiting resistor R’ in series with the transformer to transfer the voltage signal to mA current signal (recommended 2mA/2mA application). For example: The measured voltage is 380Vac, then the R’ should be 190K ohms to limit the primary current of TV31 to 2mA. The secondary mA current output can be transferred to voltage signal by an operational amplifier I/V conversion circuit as figure 1. The advantage of this application is almost zero load state of TV31, with high accuracy and good linearity. Application figure 2, directly connect a sampling resistor in parallel with TV31 secondary output to get the voltage signal. There is a maximum sampling resistor value for different current type voltage transformer, please note for application to avoid the saturation of transformer and the distortion of output wave. C. GREWIN has various kinds of state-of-the-art equipment, which are used in production, sampling and testing. Our equipments enable us to produce good quality products efficiently. 4.The following picture showed you about all current transformers.We can pack all the finished transformers into export standard cartons with strong pallets so that can make sure the goods reach safety to your destination place.
5. About us: Tianjin Grewin Technology Co.,ltd. has always placed great emphasis on our core business philosophy "Quality and Honesty First ". Due to continuous innovative research and development, technical standards and efficient.A professional leading and a main exporter of a wide variety of electronic components in China for many Years.
6.Flow chart of trading activities:
NO | Step | Days need |
1 | Request for quotation | 1 day |
2 | Making quotations | 1 day |
3 | Offer and counter offer | 3 days |
4 | Sending and receiving samples | 3-10 days |
5 | Sample confirmation | 3 days |
6 | Placing a firm order | 1 day |
7 | Paying and receiving the down payment | 1-4 day |
8 | Factory production & Quality inspection | 15-20 days |
9 | Paying and receiving the balance | 4 days |
10 | Delivery of goods | 1 days |
7.Acceptance of the Conditions: All orders accepted by GREWIN are subject to the general sale conditions herein set forth, which are understood and accepted by the Purchaser when passing the order and/or upon receipt of GREWIN invoices. Other conditions as well as any verbal agreement are considered valid only if specifically confirmed by GREWIN in writing. 8.Payment terms: (1). T/T 100% or 50% deposit by T/T in advance, balance amount to be paid 7 days before delivery. (2). By irrevocable L/C at sight, to be issued immediately against confirmed order. (3). Payment by T/T, if order amount is less than USD 20,000. 9.Sample terms: (1). Samples will be sent subject to advance payment to cover the courier charge and samples charge. (2). You are pleased to instruct your courier company to pick up samples in our TianJin, China office at your expenses. For pick-up details, please advise your courier company to contact us. (3). Delivery time 3-10 working days. Customers Notification: Our products need to be designed according to technical datas which will have different costs. The above unit price is only for your reference cost about standard product. We hope you contact with us by mail about below custom requirements before submitting order's amount . Custom Current transformer mainly Parameters : 1.Models No. 2.Or accuracy ,rated output voltage andcurrent; 3.frequency and dimension. 4.Order qty/batch 5.Samples qty If you made payment without sending your technical datas and getting price confirmation ,which will difficult to send correct transformers. Thank you for your understand and support .
10.Contact Information: Aliceli Tianjin Grewin Technology Co.,Ltd. Mail: alice(at)grewin-tech.com Skype: lialice99 Website: http://www.grewin-tech.com http://grewin-tech.en.alibaba.com |