{"id":823,"date":"2026-08-27T05:09:03","date_gmt":"2026-08-27T05:09:03","guid":{"rendered":"https:\/\/demos2us.in\/electric\/?post_type=product&#038;p=823"},"modified":"2026-08-27T05:09:03","modified_gmt":"2026-08-27T05:09:03","slug":"grounding-transformers-zn-zigzag-znyn-yndopen-ii0","status":"publish","type":"product","link":"https:\/\/demos2us.in\/electric\/products\/grounding-transformers-zn-zigzag-znyn-yndopen-ii0\/","title":{"rendered":"GROUNDING TRANSFORMERS [ZN (ZIGZAG), ZNYN, YND(OPEN), II0]"},"content":{"rendered":"<p style=\"font-weight: 400;\"><strong>GROUNDING TRANSFORMERS [ZN (ZIGZAG), ZNYN, YND(OPEN), II0]<\/strong><\/p>\n<p style=\"font-weight: 400;\"><strong>Grounding Transformers<\/strong>\u00a0are intended to establish an artificial neutral point for ungrounded three phase power systems.<\/p>\n<p style=\"font-weight: 400;\">The kVA rating of an<strong>\u00a0earthing transformer<\/strong>\u00a0is contingent upon the normal line-to-neutral voltage and the magnitude of fault current for a specified duration, typically ranging from seconds to minutes. In the event of line-to-ground faults, these transformers offer a direct path for fault currents to ground, thereby constraining fault currents and transient over-voltages.<\/p>\n<p style=\"font-weight: 400;\"><strong>Grounding Transformers<\/strong>\u00a0typically handle short-circuit ground current until the circuit breaker resolves the fault. Consequently, they are equipped with short-time ratings. We have hermetic type, dry type and oil type transformers.<\/p>\n<p style=\"font-weight: 400;\"><strong>Test List<\/strong><\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Visual &amp; Dimensional Check<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Measurement of Voltage Ratio<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Measurement of Winding Resistance<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Measurement of Zero Sequence Impedance<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Measurement of No-Load Loss and Current<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Measurement of Short-Circuit Impedance and Load Loss<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Dielectric Tests<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Separate Source AC Withstand Voltage Test<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Induced AC Withstand Voltage Test<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Lightning Impulse Test<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Temperature Rise Test<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0Final Check<\/p>\n<p style=\"font-weight: 400;\">l\u00a0\u00a0For special tests, please contact us.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricvalley.net\/img\/GROUNDING%20TRANS_detail_3.jpg\" alt=\"GROUNDING TRANSFORMERS [ZN (ZIGZAG), ZNYN, YND(OPEN), II0]\u00a0\u00a0\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricvalley.net\/img\/GROUNDING%20TRANS_detail_4.jpg\" alt=\"GROUNDING TRANSFORMERS [ZN (ZIGZAG), ZNYN, YND(OPEN), II0]\u00a0\u00a0\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricvalley.net\/img\/GROUNDING%20TRANS_detail_5.jpg\" alt=\"GROUNDING TRANSFORMERS [ZN (ZIGZAG), ZNYN, YND(OPEN), II0]\u00a0\u00a0\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricvalley.net\/img\/GROUNDING%20TRANS_detail_6.jpg\" alt=\"GROUNDING TRANSFORMERS [ZN (ZIGZAG), ZNYN, YND(OPEN), II0]\u00a0\u00a0\" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.electricvalley.net\/img\/GROUNDING%20TRANS_detail_7.jpg\" alt=\"GROUNDING TRANSFORMERS [ZN (ZIGZAG), ZNYN, YND(OPEN), II0]\u00a0\u00a0\" \/><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"featured_media":824,"template":"","product_category":[18,24],"class_list":["post-823","product","type-product","status-publish","has-post-thumbnail","hentry","product_category-neutral-earthing-equipment","product_category-grounding-transformers"],"acf":[],"_links":{"self":[{"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/product\/823","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/media\/824"}],"wp:attachment":[{"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/media?parent=823"}],"wp:term":[{"taxonomy":"product_category","embeddable":true,"href":"https:\/\/demos2us.in\/electric\/wp-json\/wp\/v2\/product_category?post=823"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}