China, Japan, South Korea, North Korea, Mongolia, Hong Kong-China, Macao-China, Taiwan-China, Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, Philippines, East Timor, Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Turkmenistan, Iran, Iraq, Azerbaijan, Georgia, Armenia, Turkey, Syria, Jordan, Israel, State of Palestine, Saudi Arabia, Bahrain, Qatar, Yemen, Oman, United Arab Emirates, Kuwait, Lebanon, Cyprus, Afghanistan, Norway, Sweden, Finland, Denmark, Iceland, Aland Islands, Bonaire,SaintEustatiusAndSaba, Faroe Islands, Estonia, Latvia, Lithuania, Belarus, Russia, Ukraine, Moldova, Kosovo, Germany, Poland, The Czech Republic, Slovakia, Hungary, Austria, Liechtenstein, Switzerland, United Kingdom, Ireland, Netherlands, Belgium, Luxembourg, France, Monaco, Guernsey, Isle Of Man, Spain, Portugal, Andorra, Italy, Greece, Malta, Vatican, San Marino, Slovenia, Croatia, Albania, Romania, Bulgaria, Serbia, Macedonia, Bosnia and Herzegovina, Montenegro, French Southern Territories, Egypt, Sudan, Tunisia, Algeria, Libya, Morocco, Ethiopia, Somalia, Eritrea, Djibouti, Uganda, Tanzania, Rwanda, Burundi, Seychelles, Kenya, South Sudan, Reunion, Mayotte, Chad, Central African Republic, Cameroon, Equatorial Guinea, Gabon, The Republic of Congo , The Democratic Republic of the Congo, The Democratic Republic of Sao Tome and Principe, Mauritania, Western Sahara, Senegal, Gambia, Mali, Burkina Faso, Guinea, Guinea-Bissau, Cape Verde, Sierra Leone, Liberia, Republic of Côte d'Ivoire, Ghana, Togo, Benin, Niger, Nigeria, Angola, Zambia, Malawi, Zimbabwe, Mozambique, Republic of Botswana, Namibia, Republic of South Africa, Swaziland, Lesotho, Madagascar, Mauritius, Comoros, Saint Helena, Australia, New Zealand, Papua New Guinea, Solomon Islands, Vanuatu, Micronesia, Marshall Islands, Palau, Fiji, Kiribati, Nauru, Tuvalu, Samoa, Tonga, Niue, The Cook Islands, American Samoa, Cocos Islands, Guam, Northern Mariana Islands, New Caledonia, French Polynesia, Tokelau, Wallis And Futuna, Canada, United States, Mexico, Bahamas, Cuba, Jamaica, Haiti, The Dominican Republic, Saint Kitts and Nevis, Antigua and Barbuda, Commonwealth of Dominica, Saint Lucia, Saint Vincent and the Grenadines, Barbados, Grenada, Trinidad and Tobago, Anguilla, Bermuda, Greenland, Guadeloupe, Jersey, Cayman Islands, Martinique, Montserrat, Saint Pierre And Miquelon, Puerto Rico, Sint Maarten, United States Minor Outlying Islands, U.S.Virgin Islands, Guatemala, Belize, Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Llívia, Brazil, Chile, Argentina, Uruguay, Paraguay, Curacao, Falkland Islands, French Guiana
China, Japan, South Korea, North Korea, Mongolia, Hong Kong-China, Macao-China, Taiwan-China, Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, Philippines, East Timor, Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives, Kazakhstan, Kyrgyzstan, Tajikistan, Uzbekistan, Turkmenistan, Iran, Iraq, Azerbaijan, Georgia, Armenia, Turkey, Syria, Jordan, Israel, State of Palestine, Saudi Arabia, Bahrain, Qatar, Yemen, Oman, United Arab Emirates, Kuwait, Lebanon, Cyprus, Afghanistan, Norway, Sweden, Finland, Denmark, Iceland, Aland Islands, Bonaire,SaintEustatiusAndSaba, Faroe Islands, Estonia, Latvia, Lithuania, Belarus, Russia, Ukraine, Moldova, Kosovo, Germany, Poland, The Czech Republic, Slovakia, Hungary, Austria, Liechtenstein, Switzerland, United Kingdom, Ireland, Netherlands, Belgium, Luxembourg, France, Monaco, Guernsey, Isle Of Man, Spain, Portugal, Andorra, Italy, Greece, Malta, Vatican, San Marino, Slovenia, Croatia, Albania, Romania, Bulgaria, Serbia, Macedonia, Bosnia and Herzegovina, Montenegro, French Southern Territories, Egypt, Sudan, Tunisia, Algeria, Libya, Morocco, Ethiopia, Somalia, Eritrea, Djibouti, Uganda, Tanzania, Rwanda, Burundi, Seychelles, Kenya, South Sudan, Reunion, Mayotte, Chad, Central African Republic, Cameroon, Equatorial Guinea, Gabon, The Republic of Congo , The Democratic Republic of the Congo, The Democratic Republic of Sao Tome and Principe, Mauritania, Western Sahara, Senegal, Gambia, Mali, Burkina Faso, Guinea, Guinea-Bissau, Cape Verde, Sierra Leone, Liberia, Republic of Côte d'Ivoire, Ghana, Togo, Benin, Niger, Nigeria, Angola, Zambia, Malawi, Zimbabwe, Mozambique, Republic of Botswana, Namibia, Republic of South Africa, Swaziland, Lesotho, Madagascar, Mauritius, Comoros, Saint Helena, Australia, New Zealand, Papua New Guinea, Solomon Islands, Vanuatu, Micronesia, Marshall Islands, Palau, Fiji, Kiribati, Nauru, Tuvalu, Samoa, Tonga, Niue, The Cook Islands, American Samoa, Cocos Islands, Guam, Northern Mariana Islands, New Caledonia, French Polynesia, Tokelau, Wallis And Futuna, Canada, United States, Mexico, Bahamas, Cuba, Jamaica, Haiti, The Dominican Republic, Saint Kitts and Nevis, Antigua and Barbuda, Commonwealth of Dominica, Saint Lucia, Saint Vincent and the Grenadines, Barbados, Grenada, Trinidad and Tobago, Anguilla, Bermuda, Greenland, Guadeloupe, Jersey, Cayman Islands, Martinique, Montserrat, Saint Pierre And Miquelon, Puerto Rico, Sint Maarten, United States Minor Outlying Islands, U.S.Virgin Islands, Guatemala, Belize, Salvador, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Llívia, Brazil, Chile, Argentina, Uruguay, Paraguay, Curacao, Falkland Islands, French Guiana
The ZN118-12 consists of two core parts:
These two parts are integrated via a handcart frame and beam, forming a longitudinal layout (the mechanism remains fixed, while the poles rotate). It is a handcart-type longitudinal-rotary isolation vacuum circuit breaker, which can be matched with KYN88-12 switchgear to form a middle-mounted handcart cabinet. Electrical connection (to the main busbar above and current transformer below) is realized through contact heads.
The three-phase poles are fixed on a metal support (equipped with a drive connecting rod and drive/rotary motion conversion system), which enables the opening/closing operation of the circuit breaker and isolation switch. Both manual and electric operation are supported.
| Advantage | Details |
|---|---|
| 1. Excellent current-carrying & heat dissipation | The three-phase pole structure is compact; in the working position, the upper and lower parts are connected, ensuring smooth heat dissipation. The vertical axial flow heat dissipation structure eliminates the heating dead zone existing in the traditional arm-type outlet/contact head structure. |
| 2. Innovative, safe & reliable isolation vacuum circuit breaker | It integrates the functions of both a circuit breaker and an isolation switch. Switching from the working position to the test (isolation) position does not require manual handcart movement (manual/electric operation is available), and the isolation break is visible, enhancing safety. |
| 3. Stable spiral spring operating mechanism | The spiral spring serves as the energy storage component for opening/closing operations (it acts as both an opening spring and a closing spring). A planar sealed cam groove is used as the drive component; the roller on the drive arm is always confined in the cam groove, effectively suppressing closing bounce, opening impact and rebound. It features a simple structure, stable force output, low closing power, and long service life. |
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