5 to 400A Impedance Matching Transformer with One Current Transformer and Voltage Transformer

5 to 400A Impedance Matching Transformer with One Current Transformer and Voltage Transformer 

 1.Application

This combined instrument transformer is for use with electrical measuring instruments and electrical protective devices. It consists of a current transformer and a voltage transformer in the same case.

Our combined instrument transformer is especially suitable for HV metering, to do so, two voltage transformers shall be connected in V type, while two current transformers connect serially to phase A and C. The instrument transformer can be fixed on the post of transmitting line. The secondary output connects directly to an independent HV metering box. Users can choose certain connection in accordance with different conditions.

1).Rated Voltage (kV): up to 35kV

2).Rated Primary Current: up to 1000A or custom specified

3).Rated Secondary Current: 5A

4).Accuracy Class: up to 0.2s for metering; up to 0.2, 0.5 for protection

5).Rated Frequency: 50Hz (60Hz on request)

6).Installation: outdoor

7).Insulation Material: epoxy resin and silicon jel

8).Winding: high quality enameled copper wire

* Except for the technical parameters list above, we can design as per clients’ requirements.

1).A metering unit consisting of one CT and one VT

2).With small volume and good performance

3).Multi-taps at the secondary windings, which makes different current transformation ratio for the current exchange of customers while power consumption increasing

4. Manufacturing Standard: IEC60044-3:2002, GB17201-2007

5.Technical Parameters for JLSH(G)W-10 II Metering Devices

  Technical Parameters Table 

All our goods are packed in wooden cases, with foam inside for protection. And we have a team who is in charge of packing. The team consists of our skilful carpenters and experienced packing designers. These enable our packing reasonable, safe and reliable.

I. Before Sale

a. Contact with clients nearly to know their requirements exactly.

b. Express the requirements from the clients to relevant departments in quickness and exactitude.

II. During Sale

a. Ensure that the products delivered are certified (confirming to the standards of China and IEC).

b. Ensure that marks, handle, package, storage and protection are in accordance with the requirements of ISO 9001/ISO 14001 standards.

c.Transport the products to specified destination as per the contract.

III. After Sale

Our after- sales service is available anytime.

a. Three guarantees will be carried out on the products delivered (18 months quality guarantee). That is refund, replacement and repair.

b. Fittings supply shall be in time.

c. Response for the financial loss brought from the uncertified or services.

d. Product sample is available.

e. Product customization is welcome. We have professional team to meet your requirements.

(GDSH)Guangdong Shui Instrument Transformer Works Co., Ltd. has been in the field of designing and manufacturing power transformers, instrument transformers and related components for more than 24 years. GDSH has two factories based in Sihui City near Guangzhou. Sihu Brand products have the full certificates as below:

·Russia GOST certification;

·China Environmental Symbol Products;

·Guangdong Provincial Energy Saving Symbol Products;

·Excellent conduct enterprise certification with AAAA-level standard; and

·Standardized safety production enterprise with second level

And GDSH pass ISO 9001:2000, ISO 9001/ISO 14001/OHSAS 18001 Quality Environmental and Occupational Health and Safety Management Systems certification.

Our production capability is:

Power transformers 20,000 pieces per year

Voltage transformers 80,000 pieces per year

Current transformers 100,000 pieces per year

Insulating articles 400,000 pieces per year

Quality control

We have more than 50 professional quality inspectors. There are at least 2 quality inspectors distributed at each workshop to make sure every parts of our product are qualified. What’s more, our Test workshop is always capable of stopping non-conforming products to be delivered.

There are 30-45 members in our R&D team

We have a policy of continuous improvement to its product lines.

 And our substantial R & D capabilities are focused on quality and functional enhancements.

Our R&D team provides innovative products to the power grid and other electrical industries.

Our main export market is South Asia, North America, Europe and South America and so on.

 Payment terms: 30% deposit in advance and 70% balance paid before delivery or 100% L/C at sight

Minimum order: for high voltage products and power transformers: 1 piece;

             For medium voltage products: 3 pieces;

             For low voltage products and insulating articles: 10 pieces

Delivery time: 5~30 days after receive of order

Quotation Valid Date: 90 days

Transportation methods: By air or by sea, as requested